Make yourself visible and let companies apply to you.
Role title
Roles
Java Jobs in London
Trending Java jobs in London
Get notified about new jobs that match this search?
Software Engineer - Post Trade Systems - Macquarie Group
Macquarie Group
London
Hybrid
Mid - Senior
Private salary
RECENTLY POSTED

Our Technology team supports the Commodities and Global Markets’ area of the business. We are responsible for building robust, scalable, and high-performance applications that automate and streamline post-trade processes, ensuring operational efficiency, accuracy, and compliance.

At Macquarie, our advantage is bringing together diverse people and empowering them to shape all kinds of possibilities. We are a global financial services group operating in 31 markets and with 56 years of unbroken profitability. You’ll be part of a friendly and supportive team where everyone - no matter what role - contributes ideas and drives outcomes.

What role will you play?

As a Java Engineer within our team, you will design, develop, and maintain robust Java applications and microservices supporting confirmations and settlements for multiple asset classes. You will integrate real-time data streaming and processing capabilities, manage data storage solutions, and contribute to cloud-based deployments and automation efforts. Your role will involve supporting containerisation and participate in monitoring initiatives to maintain system health and performance. You will also collaborate on front-end development as needed, enabling responsive and dynamic user interfaces for operational teams.

What you offer

  • Strong experience developing robust and scalable applications using Java
  • Proven experience building and deploying microservices and enterprise applications with Spring Boot
  • Solid understanding of relational databases for designing, implementing, and maintaining data storage solutions
  • Strong understanding of Git for source code management and collaboration
  • Excellent problem-solving and analytical skills
  • Basic understanding of financial concepts, products, and post-trade processes, with the ability to apply finance knowledge to technology solutions

We love hearing from anyone inspired to build a better future with us, if you’re excited about the role or working at Macquarie we encourage you to apply.

What we offer

At Macquarie, you’re empowered to shape a career that’s rewarding in all the ways that matter most to you. Macquarie employees can access a wide range of benefits which, depending on eligibility criteria, include:

  • 1 wellbeing leave day per year and a minimum of 25 days of annual leave.
  • 26 weeks’ paid parental leave for primary caregivers along with 12 days of paid transition leave upon return to work and 6 weeks’ paid leave for secondary caregivers
  • Paid fertility leave for those undergoing or supporting fertility treatment
  • 2 days of paid volunteer leave and donation matching
  • Access to a wide range of salary sacrificing options
  • Benefits and initiatives to support your physical, mental and financial wellbeing including, comprehensive medical and life insurance cover
  • Access to our Employee Assistance Program, a robust behavioural health network with counselling and coaching services
  • Access to a wide range of learning and development opportunities, including reimbursement for professional membership or subscription
  • Access to company funded emergency and backup dependent care services
  • Recognition and service awards
  • Hybrid and flexible working arrangements, dependent on role
  • Reimbursement for work from home equipment

About Technology

Technology enables every aspect of Macquarie, for our people, our customers and our communities. We’re a global team that is passionate about accelerating the digital enterprise, connecting people and data, building platforms and applications and designing tomorrow’s technology solutions.

Our commitment to diversity, equity and inclusion

We are committed to providing a working environment that embraces diversity, equity, and inclusion. We encourage people from all backgrounds to apply regardless of their identity, including age, disability, neurodiversity, gender (including gender identity or expression), sexual orientation, marriage or civil partnership, pregnancy, parental status, race (including ethnic or national origin), religion or belief, or socio-economic background. We welcome further discussions on how you can feel included and belong at Macquarie as you progress through our recruitment process.
Our aim is to provide reasonable adjustments to individuals as required during the recruitment process and in the course of employment. If you require additional assistance, please let us know during the application process.

SRE/Support Engineer- Market-Leading Global Hedge Fund
Oxford Knight
London
Remote or hybrid
Junior - Mid
Private salary

Summary:

Fantastic opportunity to join an industry-leading global market maker, using innovative and cutting-edge technology. This is an elite team of the smartest, most creative engineers, who partner with different teams across the business to solve their most pressing issues. Forget the stuffy world of finance you thought you knew; developers here are tech-driven and truly world-class.

Looking to expand their current SRE/Support Engineer team, this role offers the opportunity to:

  • Provide crucial first- and second- level support for applications and processes
  • Take ownership of incident and problem management frameworks
  • Collaborate with development and SRE teams to improve tooling & monitoring
  • Identify & resolve issues as soon as they arise, providing frequent updates to key stakeholders
  • Provide global coverage for system support and start-of-day/intraday health checks

You’ll be expected to be a self-starter who demonstrates a strong sense of ownership, execution and the ability to work and deliver results with minimal supervision.

Requirements:

  • Previous commercial experience providing L1/ L2 support
  • Experience with Linux/Unix OS and K8s
  • Knowledge of databases, e.g. Sybase, SQL or KDB/Q
  • Skilled working with Java (JVM, Heap management)
  • Familiarity with Python and/or Q/KDB a plus
  • Minimum bachelor’s degree in Engineering, Computer Science (or related field)
  • Excellent communicator with both technical and non-technical colleagues

Benefits:

  • Significant salary + bonus + benefits
  • Build complex software solutions to solve challenging problems in agile environment
  • Work with some of the smartest minds in the industry from a range of backgrounds

Whilst we carefully review all applications, to all jobs, due to the high volume of applications we receive it is not possible to respond to those who have not been successful.

Contact
If you would like to know more about this position, please do not hesitate to get in touch!

Mike McLoughlin
mike.mcloughlin@oxfordknight.co.uk
https://www.linkedin.com/in/michaelmcloughlin00/

Senior Attack Monitoring Analyst, GSOC - London Stock Exchange Group
London Stock Exchange Group
London
Remote or hybrid
Senior
Private salary

ROLE PROFILE:

The London Stock Exchange Group seeks an experienced, dedicated and driven Senior Attack Monitoring Analyst to join the Global Security Operations team!

ROLE SUMMARY:

LSEGSecurity Operationsis a central function employingpeople, process and technology to continuously monitor and respond to cyber security incidents.

This role is for a Senior Attack Monitoring Analyst for the Global Security Operations Centre (GSOC). The role is responsible for identifying and responding to cyber security incidents and improving the defensive capabilities of the GSOC.

The ideal candidate will have a solid technical background, with a firm understanding of modern attack techniques coupled with knowledge of the typical lifecycle of an attack.

WORKING HOURS:

This role is available in two locations: London and Singapore.

Working hours will follow standard UK business hours (9:00 AM - 6:00 PM GMT) or Singapore hours (preferably 2:00 PM - 10:00 PM SGT). Singapore working hours are flexible and can be adjusted based on candidate availability.

RESPONSIBILITIES:

• Triage security events and employ a methodical and coherent response to security incidents adopting playbooks where necessary.

• Competently operate a chosen SIEM (e.g., Splunk/QRadar/LogRhythm) for incident investigations, or for the development of monitoring dashboards.

• Utilise playbooks, existing knowledge and accurate online resources for guidance when responding to incidents.

• Utilise online resources for researching and collecting threat intelligence to improve the SOC’s abilities to detect cyber-attacks.

• Develop new, or improve existing run books and use cases based on investigations and knowledge of modern attacks.

• Stay up to date with current vulnerabilities, attacks, and countermeasures.

• Identify, respond and remediate cyber events generated through monitoring technologies.

EXPERIENCE:

• Preferred experience with operating or administrating a SIEM (e.g., Splunk/QRadar/LogRhythm).

• Solid understanding of networks including the TCP/IP stack, typical organisation architectures, and common protocols abused by malware.

• Experience in security event analysis & triage, incident handling and root-cause identification.

• Understanding of tools, techniques and procedures that attackers use to compromise organisations, ideally from direct experience.

• Knowledge of cyber security either academically or within corporate environments.

• Ability to work in a fast-paced and demanding environment while remaining calm.

• Strong verbal and written communication and collaboration skills.

• Security industry specific and core technical accreditations such as OSCP, GIAC, CCNA.

• Certification demonstrating SIEM operational competences.

• Proficient with one or more programming languages (e.g., Python, PowerShell, Java, C#).

Career Stage:
Senior Associate

London Stock Exchange Group (LSEG) Information:

Join us and be part of a team that values innovation, quality, and continuous improvement. If you’re ready to take your career to the next level and make a significant impact, we’d love to hear from you.

LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth.

Our purpose is the foundation on which our culture is built. Our values of Integrity, Partnership, Excellence and Change underpin our purpose and set the standard for everything we do, every day. They go to the heart of who we are and guide our decision making and everyday actions.

Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries. However, we will value your individuality and enable you to bring your true self to work so you can help enrich our diverse workforce.

We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone’s race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. Conforming with applicable law, we can reasonably accommodate applicants’ and employees’ religious practices and beliefs, as well as mental health or physical disability needs.

You will be part of a collaborative and creative culture where we encourage new ideas. We are committed to sustainability across our global business and we are proud to partner with our customers to help them meet their sustainability objectives. Our charity, the LSEG Foundation provides charitable grants to community groups that help people access economic opportunities and build a secure future with financial independence. Colleagues can get involved through fundraising and volunteering.

LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.

Please take a moment to read this privacy notice carefully, as it describes what personal information London Stock Exchange Group (LSEG) (we) may hold about you, what it’s used for, and how it’s obtained, your rights and how to contact us as a data subject .

If you are submitting as a Recruitment Agency Partner, it is essential and your responsibility to ensure that candidates applying to LSEG are aware of this privacy notice.

Infrastructure Architect - Low Latency Engineering (Rates eTrading Tech) - Citi
Citi
London
Hybrid
Senior
Private salary
+11

Discover your future at Citi
Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.

Job Overview
Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance - we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech.

About the Position:
We are looking for an industry wide Senior Systems Architect (Infrastructure) who can provide leadership and direction for Change-The-Bank (CTB) electronic trading infrastructure initiatives covering all technologies (in this specific domain) for Rates.
The role sits within Citi’s Global Markets: High Performance Architectures - Infrastructure (HPAi) group. This team is responsible for all electronic trading infrastructure architecture across all markets globally for the firm. It is composed of low latency Subject Matter Experts (North America, EMEA), Systems Architects (both regional and asset class aligned) and an aligned initiative management function (e.g. Technical Project Manager). Technology is key to our business; this role will require you to drive innovation and technology adoption in a large multi-faceted and complex environment. This Markets-Tech “business aligned tech” resource will collaborate with ICG-Markets “the business”, CTI “Enterprise Infrastructure”, and CISO “Security” teams driving technical architecture and engineering of CTB and End of Vendor Support (EoVS) initiatives where we choose to innovate.

What you will do (but not limited to)
Reporting to the head of HPAi, the Systems Architect will be responsible for ensuring best in breed technology architecture and engineering are in alignment with business requirements. This will be done in collaboration with CISO and other teams and resource aligned to HPAi who represent Enterprise and CISO priorities and standards.
Active collaboration with all parties is required to be successful. The resource should be able to effectively collaborate with the Markets-Tech Electronic Trading organization (our clients), steer other technology organizations directly or through influence, and love rolling up their sleeves and working as an individual contributor.
The resource will leverage the full strength of the supporting non-ICG technology organizations (dedicated and non-dedicated to HPAi).
The role is very broad requiring a resource that is not afraid to do new things and be challenged on a regular basis with a can-do attitude and an engineering mindset.
You will show a deep desire to drive results and an unquenchable desire to understand how technology primitives work (and how to abuse them).
Low Latency Trading - Rates and Cross Markets, domain specific technology is required (solid knowledge for as many of the following as possible):

The Technologies:

  • Compute (Linux, CoreOS, Tuning, kernel bypass technologies, core dump analysis)

  • Network (R&S, cut-through, Multicast, SDN, BGP, L1-L3, PCAP analysis)

  • HPC File Systems (Lustre, GPFS, Weka, DDN, Ceph)

  • Interconnects (InfiniBand, Slingshot, PCIe, NVLink, UALink, UPI, RoCE)

  • HW (Server, FPGA, GPU, Memory, Cache, over clocking, cooling, ASIC, Quantum, NUMA)

  • DevOps (OpenShift, Kubernetes, DevOps, Prog[Python, Perl, Shell], CI/CD)

  • Programming (C, C++, Java, Rust, VHDL, Verilog)

  • Time Sync (PTP, NTP, GPS, White Rabbit, SyncE)

  • Wave (RF, Millimeter, Microwave, DWDM, Photonics)

  • Storage (I/O, NAS, SAN, Object Store, SDS)

  • Database (relational, columnar, graph, NoSQL, architecture, tuning)

  • Monitoring (SPANs, TAPS, OEO, Packet Brokers, Corvil, SNMP, FIX, Logs, ELK, Open Telemetry, Grafana, Promethius)

  • Messaging (TibRV, Solace, Aeron, ZeroMQ, Kafka, Multicast, Market data (TCP/UDP), Tibco, Exegy/Vela)

  • Load Balancers (HW, SW)

  • Security (Firewalls, PKI, TLS, IDS, Optical Encryption, AD, LDAP)

  • Connectivity (WAN, Lucera, cross-connects, ECX, venue, client)

  • Colo / Datacenter (Power, Space, Cage, Rack, Cabinet, Design)

  • Excel (for advanced frameworks, data analysis)

Required:

  • Deep knowledge of operating system fundamentals - hyper focus on Linux (REL, CoreOS)

  • Understanding of OSI model and TCP and UDP network protocols

  • Experience with Python and data libraries

  • Fluency with the Unix command line and shell scripting

  • Practical experience with modern Linux systems and systems programming concepts like C, IPC mechanisms, virtual memory, and process life cycle

  • Strong troubleshooting skills and knowledge of profiling/debugging tools such as gdb, perf, DTrace, SystemTap

  • Can understand, interpret, and improve application performance via system tuning

  • Thorough understanding of modern computer architecture - modern x86 AMD and Intel cache hierarchies as an example.

  • Kernel-bypass technology knowledge (such as Solarflare OpenOnload / TCPDirect / ef_vi, RoCE, DPDK)

  • Prior experience in a similar Site Reliability Engineering (SRE), DevOps, distributed computing, systems engineering/administration

  • Ability to context switch to work on several projects at once

  • Knowledge of JIRA, SCRUM, Sprints

  • Low Latency Trading - Rates and Cross Markets, domain specific technology is would be highly beneficial

The Details:

  • Ingress/plan/execute/manage technical initiatives to make our electronic trading systems faster, more adaptable stable and maintainable aligned to HPAi standards.

  • Communicate ideas, requirements, and results across disparate teams.

  • This position will support technical populations (Rates), partnering with leaders to understand their challenges and design and execute solutions to solve them.

  • Communicating business and IT requirements to external vendors and internal technical teams

  • To succeed in this role, you must enjoy working independently and collaborating, being a hands-on contributor, learning on the fly and embrace change - rapid pace.

  • You must be able to understand full-stack electronic trading technologies and engage effectively in a very technical manner with other SMEs, systems architects, the business (at times), Markets-Tech, and enterprise infrastructure organizations (CTI/CISO).

This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.

What we’ll provide you
By joining Citi, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as:

  • 27 days annual leave (plus bank holidays)
  • A discretional annual performance related bonus
  • Private Medical Care & Life Insurance
  • Employee Assistance Program
  • Pension Plan
  • Paid Parental Leave
  • Special discounts for employees, family, and friends
  • Access to an array of learning and development resources

Visit our About Us | Culture, Values & Benefits page to learn more.

Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self, every day. We want the best talent around the world to be energized to join us, motivated to stay and empowered to thrive.

Education:
Degree Educated ideally in a Comp science or engineering field or experience operating in a similar role.


Job Family Group:
Technology ------------------------------------------------------
Job Family:
Applications Development ------------------------------------------------------
Time Type:
Full time ------------------------------------------------------
Most Relevant Skills
Please see the requirements listed above.------------------------------------------------------
Other Relevant Skills
For complementary skills, please see above and/or contact the recruiter.------------------------------------------------------
Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.

If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi .

View Citi’s EEO Policy Statement and the Know Your Rights poster.

Public Cloud - Forward Deployed Engineer (VP) - Citi
Citi
Multiple locations
Hybrid
Leader
Private salary
+2

Discover your future at Citi
Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.

Job Overview
About the Opportunity
Are you a seasoned technologist with a passion for building cutting-edge enterprise products and a hands-on approach to engineering? Join Citi’s Cloud Technology Services (CTS) team and be part of our commitment to transform Citi’s technology by leveraging game-changing cloud capabilities to drive agility, efficiency, and innovation.
We’re providing our businesses with a competitive edge by leveraging the scale of the public cloud and enabling new infrastructure economics. As the Forward Deployed Engineer, you will play a pivotal role in shaping and executing our public cloud strategy.
You will be part of a team that continues to deliver big! From building a cloud-based High-Performance Compute (HPC) platform to run huge risk calculations, enabling Citi to leverage GenAI at scale, all the way to enabling payments solutions, this team is at the forefront of innovation.

What You’ll Do:

  • Technical Expertise: Provide hands-on technical contribution within a product team that focuses on public cloud container fleet management services, supporting Citi’s secure and enterprise-scale adoption of the public cloud.
  • Collaborative Development: Contribute to a team of cloud engineers and full-stack software developers, building and deploying solutions that advance the public cloud strategy.
  • Automation: Identify and develop automation initiatives to improve processes related to public cloud service consumption, enhancing client satisfaction and delivering business value.
  • Cross-Functional Partnership: Collaborate with teams across Citi’s technology landscape to ensure alignment between public cloud initiatives and broader business goals.
  • Engineering Excellence: Contribute to defining and measuring success criteria for service availability and reliability within the specific product domain.

Who You Are:

You are a talented developer with a proven track record of hands-on enterprise grade application development, expertise in public cloud, and a passion for engineering best practices. You have:

  • Development Expertise: Experienced in full-stack software development with a focus on AWS and GCP. Demonstrates hands-on software development and engineering expertise. Key areas of proficiency include:

    • Programming Languages: Python, Java and Go.
    • AI/ML: prompt engineering, LLMs, RAG, Semantic Search, Vector Databases, etc
    • Behaviour-Driven Development (BDD) Testing: Cucumber, JBehave, Pytest-BDD, etc.
    • CI/CD pipelines: Harness, Tekton, Jenkins, etc.
    • Knowledge on middleware & distributed messaging (Kafka)
    • Databases (MongoDB and SQL)
    • Familiarity with Domain Driven Design and Event Driven Architecture
  • Agile and DevOps Mindset: Familiarity with Agile Development, DevOps, and SRE practices.

  • Adaptability: A demonstrated ability to quickly learn new technologies and adapt to changing project requirements.

  • Strategic Thinking: Experience evaluating complex requirements and rationalizing them into a consistent service offering.

  • Excellent Communication: The ability to effectively communicate technical concepts to both technical and non-technical audiences.

  • Exceptional Teamwork and Collaboration: A proven ability to contribute effectively within a cross-functional team environment.

What we can offer you:
By joining Citi, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as:

  • 27 days annual leave (plus bank holidays)
  • A discretional annual performance related bonus
  • Private Medical Care & Life Insurance
  • Employee Assistance Program
  • Pension Plan
  • Paid Parental Leave
  • Special discounts for employees, family, and friends
  • Access to an array of learning and development resources

Visit ourGlobal Benefitspage to learn more.
Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self, every day. We want the best talent around the world to be energized to join us, motivated to stay and empowered to thrive.


Job Family Group:
Technology ------------------------------------------------------
Job Family:
Systems & Engineering ------------------------------------------------------
Time Type:
Full time ------------------------------------------------------
Most Relevant Skills
Please see the requirements listed above.------------------------------------------------------
Other Relevant Skills
For complementary skills, please see above and/or contact the recruiter.------------------------------------------------------
Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.

If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi .

View Citi’s EEO Policy Statement and the Know Your Rights poster.

Senior Java Developer - PIMCO
PIMCO
London
Hybrid
Senior
Private salary
+3

We are a leading global asset management firm with over 3,000 employees across 20 offices in 15 countries; we help millions of investors around the world pursue their financial goals.

We hire critical thinkers. People who thrive in a collaborative culture like ours where we solve real problems while building the future of finance.

You

  • Are excited to be part of a vibrant engineering community that values diversity, hard work, and continuous learning.
  • Love solving complex real-world business problems.
  • Recognize that cross-functional collaboration is a core component of success for the team.
  • Believe there are multiple ways to solve most technical problems and are willing to debate the trade-offs.
  • Have become a stronger engineer by making mistakes and learning from them.
  • Are a doer, someone who wants to grow their career and gain experience across technologies and business functions.

We

  • Continuously invest in a high-performance and inclusive culture, in which a diversity of backgrounds, experiences and viewpoints are celebrated and valued.
  • Encourage career mobility, so you can benefit from learning different functions and technologies, and we gain the benefits of your experience across teams.
  • Run technology pro bono programs that help the non-profit community and give our engineering community opportunities to volunteer and participate.
  • Offer education reimbursements and ongoing training in technology, communication, and diversity & inclusion.
  • Embrace knowledge sharing through lunch-and-learns, demos, and technical forums.
  • Consider our people to be our greatest asset-we will help you learn what PIMCO Technology has to offer so you can participate in activities that benefit your career while delivering impactful technology solutions.

Project Overview

Our middle office transformation initiative will completely transform our business workflows by delivering efficiency across processes, providing our investment teams with more accurate and timely access to positions, P&L, and performance. In this role, you will:

Responsibilities:

Platform Development and Management

  • Build and maintain supporting components, including data infrastructure and reporting tools within the middle office ecosystem.
  • Ensure high performance and scalability through best practices in software architecture and rigorous testing protocols.
  • Provide Level 3 support for middle office applications.

Collaboration & Stakeholder Engagement

  • Work closely with Portfolio Managers & Operations to gather requirements and provide technical solutions.
  • Translate various financial asks into tangible, production-quality software.

Code Quality & Best Practices

  • Uphold industry best practices in coding, design patterns, and application development.
  • Mentor junior team members and perform code reviews to maintain high-quality standards.

Requirements:

  • BS/MS/PhD in Computer Science, Mathematics, or a related technical field.
  • 4+ years of hands-on software development experience in Java and Python
  • Experience in developing cloud-ready, distributed, large-scale, data-intensive applications
  • Strong understanding of data structures, algorithms, OOP, and design patterns
  • Experience with data modelling, relational and NoSQL databases, and RESTful APIs.
  • Experience with Kafka and other real-time messaging systems
  • Experience with distributed caching technologies such as Memcached, Ignite, etc.
  • Proven experience in database development and SQL
  • Deep financial knowledge of transactions, positions, P&L, or performance management.
  • Experience working in a fast-paced, dynamic environment
  • Familiarity with cloud platforms (e.g., AWS) and data warehousing solutions (e.g., Snowflake) is a plus

Equal Employment Opportunity and Affirmative Action Statement

PIMCO recruits and hires qualified candidates without regard to race, national origin, ancestry, religion (including religious dress and grooming practices), sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), sexual orientation, gender (including gender identity and expression), age, military or veteran status, disability (physical or mental), any factor prohibited by law, and as such affirms in policy and practice to support and promote the concept of equal employment opportunity and affirmative action, in accordance with all applicable federal, state, provincial and municipal laws. The company also prohibits discrimination on other basis such as medical condition, or marital status under applicable laws.

Applicants with Disabilities

PIMCO is an Equal Employment Opportunity/Affirmative Action employer. We provide reasonable accommodation for qualified individuals with disabilities, including veterans, in job application procedures. If you have any difficulty using our online system due to a disability and you would like to request an accommodation, you may contact us at 949-720-7744 and leave a message. This is a dedicated line designed exclusively to assist job seekers with disabilities to apply online. Only messages left for this purpose will be considered. A response to your request may take up to two business days.

Java Developer e-Trading - eFinancialCareers
eFinancialCareers
London
Hybrid
Mid - Senior
Private salary

Job Role: Java Developer e-Trading

Location: London Hybrid

Rate: Flexible

Start Date: ASAP

Your role

  • We are seeking an experienced candidate to join our eFX Quantitative Developer team within Global Markets
  • This is a fast paced and collaborative team that are responsible for the development and enhancement of the best-in-class eFX platform
  • The team sits within the Global Markets Principal Flow Trading stream, and has a business reporting line
  • You will be operating within a high-performing, fast paced quant development team, whose goals are directly aligned to the success of the business
  • You will take ownership of initiatives from initial analysis through to design, implementation and delivery
  • You will proactively suggest and drive through improvements to the platform and our framework
  • You will be involved in every aspect of algorithmic trading:
  • Market connectivity
  • Designing, implementing and back-testing pricing and execution strategiesDesigning and building analytics to assess model and platform performance
  • Latency analysis and optimisation
  • Enhancing the proprietary eTrading framework that is used across the department

Your team

  • A highly technical and innovative quant development team leading automated trading in FX
  • Part of the Principal Flow Trading Quant Development department, alongside teams aligned to eRates, eCredit, FX Derivatives, Equity Derivatives, and Cash Equities
  • Focused on maximising automation and performance in order to drive eTrading revenues
  • Operating in a highly agile manner, releasing to production multiple times per day

Your expertise

  • Strong business knowledge of electronic trading, ideally eFX
  • Proven experience in designing and implementing low-latency, high-throughput, event-driven algorithmic trading platforms
  • Collaboration with quantitative analysts to design and implement algorithmic trading models and controls
  • Experience of producing model documentation and partnering with governance and second line of defence functions
  • Advanced Java programming skills including approaches to low-latency Java like lock free data structures and low-garbage programming techniques
  • Beneficial to have low level experience with messaging libraries and protocols including Aeron, Kafka, EMS, SBE, FIX, ITCH, OUCH
  • Familiarity with time-series databases (preferably KDB) and Python for building analytics and reports
  • Full stack development experience is an advantage (preferably React) particularly for building monitoring dashboards and trader-facing tools

This role is advertised Via Hays

Quantitative Researcher
Anson McCade
London
In office
Mid - Senior
£120,000

£120,000 GBP

+Sign on +EOY Bonus

Onsite WORKING

Location: Central London, Greater London - United Kingdom Type: Permanent

About the Company:

Our client is seeking a talented Quantitative Researcher to join their team and contribute to the development of cutting-edge trading strategies within their automated trading framework.

Key Responsibilities:

  • Research and implement algorithmic trading strategies.
  • Analyze large data sets using advanced statistical and quantitative techniques to identify trading opportunities.
  • Develop a deep understanding of market structure across various exchanges and asset classes.

Qualifications and Skills:

  • Strong quantitative background (Mathematics, Statistics, Econometrics, Financial Engineering, Operations Research, Computer Science, or Physics).
  • Proficiency in at least one programming or scripting language (e.g., Python, C++, Java).
  • Excellent communication skills.
  • Capable of working effectively under pressure in a fast-paced environment.
Quantitative Analyst
Anson McCade
London
In office
Graduate - Junior
£75,000

£75,000 GBP

Onsite WORKING

Location: Central London, Greater London - United Kingdom Type: Permanent

Quantitative Analyst

We are partnered with a market-leading, globally renowned investment firm seeking to hire a Desk Quant Analyst. The firm designs and builds its own proprietary systems to deliver strong, consistent returns for its clients. With deep expertise in trading operations, collaboration is embedded into its global culture, enabling technology, research, and operations teams to work seamlessly across regions. Driven by a commitment to high-quality performance, the firm leads the industry in technology- and data-driven quantitative strategies across global financial markets.

Key responsibilities as a Quantitative Analyst

  • Handling and improving the codebase of strategies within our clients trading network.
  • Handle large data sets used in the production and research environments.
  • Conduct monitoring tasks on trading activities.
  • Work in collaboration with quant researchers and traders to manage the changing needs of the trading desks.

Qualifications needed for a Quantitative Analyst

  • Bachelors degree in engineering, computer science or another technical related subject.
  • programming proficiency with at least one major programming or scripting language (e.g. C++, Java, Python)
  • high level of communication skills and ability to work efficiently with colleagues across multiple areas

Additional desirable Qualifications for Quantitative analyst

  • Knowledge of Q/KDB+
  • Knowledge of Linux and Bash
  • Further quantitative skills

If you are interested, then please apply.

Central Risk Book (CRB) Trader
Anson McCade
London
In office
Mid - Senior
£300,000

£300k+ GBP

Onsite WORKING

Location: Central London, Greater London - United Kingdom Type: Permanent

Central Risk Book (CRB) Trader

Location: London or Geneva

Overview:

We are currently partnered with a well-established commodities firm to hire a Central Risk Book (CRB) Trader. This is a unique opportunity to join a high-performing trading environment with strong visibility across desks. While direct commodities experience is not essential, we are seeking candidates with robust futures trading experience and a proven track record in building and managing central risk books.

Key Responsibilities:

  • Lead the design, development, and management of the Central Risk Book (CRB).
  • Collaborate closely with centralized execution teams to manage risk and optimize returns.
  • Work alongside technologists and quant developers to enhance execution algorithms
  • Drive cross-desk visibility and strategic integration of risk across asset classes.
  • Continuously refine models and execution strategies using data-driven insights.

Required Skills and Experience:

  • Demonstrable success in building and managing CRBs or comparable centralized risk strategies.
  • Strong experience in futures trading, preferably in a systematic or high-frequency context.
  • Hands-on programming experience in at least one of: Python, SQL, C++, Java, or C#.
  • Proven track record of systematic market making, ideally at higher frequencies.

To hear more details please apply to this position or contact Ben Mortimore at Anson McCade.

Job Reference: AMC/BMO/CRB01

Senior Cyber Operations Analyst
Anson McCade
London
Hybrid
Senior
£75,000

£Up To £75,000 GBP

Performance Bonus

Hybrid WORKING

Location: UK Wide , Central London, Greater London - United Kingdom Type: Permanent

Senior Cyber Operations Analyst (Associate Manager)

Locations: London | Manchester | Bristol

Salary: Up to 75,000 + excellent package

Clearance: BPSS + SC clearance (or Eligible)

Are you an experienced Cyber Security Operations specialist looking to step into a senior role within a high-growth, high-impact cyber practice?

We’re supporting a top-tier consulting organisation (name anonymised) that is expanding its Blue Team and looking for a technical, curious and detail-driven Senior Cyber Operations Analyst to join their team.

This is a fantastic opportunity to work with cutting-edge tooling, contribute to threat-driven defensive security, and shape advanced SecOps capabilities across enterprise environments.

About the Role

As a Senior Cyber Operations Analyst at Associate Manager level, you’ll sit at the heart of a thriving Cyber Practice covering Assurance, Compliance, SecOps, Offensive Security and Research.

You’ll play a pivotal part in threat detection, incident response, detection engineering, and security monitoring - helping defend major UK organisations.

This role is perfect for someone who thrives in technical depth, enjoys problem-solving, and wants to contribute to a mission-driven cyber defence team.

Key Responsibilities

You will:

  • Develop, maintain and enhance detection content (primarily for Splunk SIEM) across cloud, endpoint and network platforms
  • Identify detection gaps, log ingestion issues and alert improvements
  • Review and uplift existing SecOps standards, logging maturity, BAU monitoring and threat-led optimisation
  • Perform day-to-day security monitoring, alert triage and incident response (9am-5:30pm rota)
  • Investigate cyber security incidents and provide technical leadership during escalations
  • Mentor junior analysts through shadowing and hands-on guidance
  • Act as a technical SME during client engagements, including presenting to senior stakeholders
  • Participate in alert testing, IR tabletop exercises, and readiness assessments
  • Stay up to date with emerging intelligence, attacker behaviours and evolving threat landscapes

Additional (client-dependent) responsibilities may include:

  • Proactive threat hunting
  • Incident response playbook development
  • Threat intelligence research
  • Vulnerability scanning & reporting
  • Internal (consultancy) and external (client-side) leadership opportunity

On-call requirement: approx. 1 week per month for high-priority incidents (additional compensation provided).

What We’re Looking For

Not every box needs to be ticked - but strong candidates will bring experience across areas such as:

  • Threat intelligence models (Pyramid of Pain, IPCE, TI lifecycle)
  • Detection engineering & alert development
  • Scripting skills (Python, Bash, C/C++, Java)
  • Core cybersecurity fundamentals: network, cloud, cryptography, forensics
  • Understanding of attacker techniques, APT behaviours and network protocol abuse
  • Familiarity with Windows/Linux investigation techniques

What’s in It for You

You’ll join an organisation that invests heavily in its people and offers:

  • Competitive salary
  • Private medical insurance
  • 25 days annual leave
  • 3 days paid charity leave
  • Continuous learning & development opportunities
  • Access to a cutting-edge cyber practice and diverse project portfolio
  • Flexible working & mobility across multiple UK hubs

Security Clearance Requirement

This role requires eligibility for BPSS + SC clearance, which normally includes:

  • 5 years continuous UK residency
  • No periods of 30+ consecutive days outside the UK in that time
  • British-only nationality (no dual citizenship) due to client conditions

Interested?

If you’re passionate about defensive security, thrive in technical SecOps work and want to make a measurable impact across major UK clients, we’d love to hear from you.

Apply directly or message me for a confidential chat.

Java Developer (Post-Trade, OTC) - Bonhill Partners
Bonhill Partners
London
In office
Mid - Senior
Private salary

We're representing a leading global hedge fund as they look for a strong Java Developer with Post-Trade, OTC experience. This role sits within a high-impact engineering team responsible for building and scaling systems that power pricing, risk analytics, and trade processing for complex OTC products. Salary: Budget undefined - the client will beat any offer in the market for the right candidate. Location: London, 5 days in office Requirements: • Strong foundation in software engineering principles. • Extensive experience with Java in complex distributed systems or quantitative environments. • Familiarity with OTC pricing and risk concepts. • Experience working with market data, analytics, or risk management platforms. Responsibilities: • Develop and enhance a risk data and analytics platform used within financial markets. • Reduce latency across trading platforms by delivering low-latency engineering improvements that enhance execution performance and overall system responsiveness. • Build scalable quantitative software solutions in Java. • Support pricing and risk analytics for both vanilla and OTC products. • Work with real-time market and risk data, including processing and analysis.

Entry Level PhD Quant Researchers/Programmers-Statistics/ Maths/ Machine Learning-£80K
Eka Finance
London
In office
Graduate - Junior
Private salary

The group researches, defines, and optimizes high-frequency trading strategies that leverage cutting-edge technology to improve speed and market access to improve their trades. Working closely with an experienced Quant Strategist, you can utilize your quantitative, research, analytical, and programming skills to gather, house, and analyze data to help optimize existing models. As your experience grows, you will be expected to contribute your own strategy ideas. This is an excellent opportunity to learn about multiple asset classes and high-frequency trading whilst leveraging your current computational skills. Responsibilities:- 1. Designing and developing systems built in C++ or Java 2. Utilizing quantitative, research, analytical, and programming skills to gather, house and analyze data 3. Contributing strategy ideas as experience grows 4. Learning about multiple asset classes and high-frequency trading Qualifications: Candidates for this opportunity will have a PhD from a top tier University in Computer Science or other quantitative field such as Signal Processing, Data Mining, Mathematics, Operations Research etc.. In addition to a stellar academic record, you will have a track record of professional quantitative or technology achievements. Ideally, you will have some research experience either in academia or in a research lab. Experience in the financial markets is a plus but not mandatory. A process-driven approach to problem-solving. Intellectual curiosity in quantitative finance. Compensation: £ Base + benefits

Senior Java Engineer - London Stock Exchange Group
London Stock Exchange Group
London
Hybrid
Senior
Private salary
+4

Future Talent: Senior Java Engineer

Location: UK - London/ Nottingham

Position Type: Future Opening - Talent Pipeline

The Opportunity

We are always on the lookout for the brightest Java engineers in our London and Nottingham locations to help us build robust, enterprise-grade solutions that drive real-world impact. Although we do not have an immediate opening today, we are establishing this “Talent Pool” to connect with forward-thinking Java professionals early.

By joining our talent community, you’ll get a unique insight into our engineering culture, engage with our team through informal gatherings, and be the first to hear about new roles that match your expertise-so we can fast-track your application straight to the final interview stage when the perfect opportunity arises.

What You’ll Do (When You Join Us)

As a Java Engineer at LSEG you will solve sophisticated challenges that demand a strong command of distributed systems, scalable architectures, and top-tier code quality.

  • Design and develop scalable, high-performance Java applications using modern frameworks and technologies.
  • Proficient Java Programming: Demonstrated experience with Java SE and EE, including object-oriented programming principles, exception handling, and multithreading.
  • Frameworks and Libraries: Familiarity with popular Java frameworks such as Spring, Spring Boot, Hibernate, and JPA.
  • Web Technologies: Understanding of servlets, JSP, RESTful APIs, and web application development using Java.
  • Database Skills: Working knowledge of SQL and experience integrating Java applications with relational databases (e.g., MySQL, PostgreSQL, Oracle).
  • Continuous Integration/Continuous Deployment (CI/CD): Familiarity with CI/CD tools (e.g., Jenkins, GitLab CI, Bamboo) and DevOps practices.

What We Look For

We place great value on technical excellence and a drive for continuous learning. If you bring the following qualities, we’d love to connect:

  • Proficiency in Java 11+ (or relevant version)
  • Strong understanding of:
  • OOP, data structures, algorithms
  • Java Collections, Streams, concurrency

Why Connect Now?

  • Skip the Line: When a role opens up, talent community members are prioritised for final interview rounds.
  • Exclusive Insights: Receive updates on our technical roadmap and invitations to our private tech events and webinars.
  • Career Alignment: We’ll keep your aspirations in mind and reach out only for opportunities that fit your specific interests (e.g., Cloud-Native, Microservices, FinTech, or AI-powered systems).

How to Join the Talent Community

If you’re keen to explore new opportunities with us, just send across your CV for our team to review and get in touch to arrange an initial conversation, so we can learn more about your interests and expertise.

Career Stage:
Senior Associate

London Stock Exchange Group (LSEG) Information:

Join us and be part of a team that values innovation, quality, and continuous improvement. If you’re ready to take your career to the next level and make a significant impact, we’d love to hear from you.

LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth.

Our purpose is the foundation on which our culture is built. Our values of Integrity, Partnership, Excellence and Change underpin our purpose and set the standard for everything we do, every day. They go to the heart of who we are and guide our decision making and everyday actions.

Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries. However, we will value your individuality and enable you to bring your true self to work so you can help enrich our diverse workforce.

We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone’s race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. Conforming with applicable law, we can reasonably accommodate applicants’ and employees’ religious practices and beliefs, as well as mental health or physical disability needs.

You will be part of a collaborative and creative culture where we encourage new ideas. We are committed to sustainability across our global business and we are proud to partner with our customers to help them meet their sustainability objectives. Our charity, the LSEG Foundation provides charitable grants to community groups that help people access economic opportunities and build a secure future with financial independence. Colleagues can get involved through fundraising and volunteering.

LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.

Please take a moment to read this privacy notice carefully, as it describes what personal information London Stock Exchange Group (LSEG) (we) may hold about you, what it’s used for, and how it’s obtained, your rights and how to contact us as a data subject .

If you are submitting as a Recruitment Agency Partner, it is essential and your responsibility to ensure that candidates applying to LSEG are aware of this privacy notice.

Technical Lead - C++ - London Stock Exchange Group
London Stock Exchange Group
London
In office
Senior
Private salary

Technical Lead - C++, Securities Technology

Role Profile

Part of the London Stock Exchange Group (LSEG), LCH is a leading clearing house, serving major international exchanges and platforms, as well as a range of OTC markets. In particular, LCH is a leading CCP in Equity and Repurchase agreement (Repo) businesses, providing clearing services for most European Government debts (refinancing/repo transactions) and Equities trading venues (Exchanges and MTFs).

LCH works closely with market participants to identify and develop innovative clearing solutions and other digital products to enhance clearing experience.

As part of the Securities Technology, the team is accountable for:

  • Designing and Building Equities and Repo Clearing systems
  • Implementation of Clearing solutions
  • Testing the changes made to the platform
  • Writing business requirements
  • Prototyping and testing (UAT)
  • Non-Functional testing is also critical.

A resilient clearing solution is essential to the company as our clients rely on us to be highly resilient.

The department is looking to onboard a Technical Lead to help deliver business change, while also improving our SDLC and time to market.

Key Responsibilities

Role:

  • Understanding the flow of code and how it interacts with different components and good software design principles.
  • Understanding project documents, customer demands, and product objectives to create and execute test cases.
  • Working on ways to automate and improve existing release processes.
  • Setting up, maintaining test automation frameworks, and building test scenarios and acceptance tests.
  • Investigating customer problems referred to you by the technical support team, testing bugs.
  • Working with Product Owners and end user to define and scope delivery.
  • Handling technical communications and understanding existing systems.
  • Working with deployments teams, coordinating on product design, and offering inputs on the testability of functional elements and product designs.
  • Researching test tools, methodologies, and trends and upgrading existing practices and processes.
  • Managing the final quality on production release.
  • Architecting systems with resilience and high availability.

Candidate Profile / Key Skills

  • 14+ years of experience in OO Development in C++
  • Experience in design and development of distributed systems.
  • Sound knowledge in modern versions of C++ (11 onward)
  • Excellent knowledge of inter process communication and
  • Experience using and building CI/CD pipelines
  • Knowledge of databases and SQL.
  • Linux/Unix experience is essential.
  • Server-side Development is a must.
  • Sound conceptual / technical knowledge of modern IT infrastructure stack
  • Autonomy, problem solving skills.
  • Effective communication skills (written and oral).
  • Understand how to build highly resilient solutions
  • Conversational level or above in English.

Non-Essential Skills

  • Working knowledge in Java
  • AWS or another Cloud provider
  • Redhat Linux
  • Scripting knowledge Bash/Perl/Python

Career Stage:
Manager

London Stock Exchange Group (LSEG) Information:

Join us and be part of a team that values innovation, quality, and continuous improvement. If you’re ready to take your career to the next level and make a significant impact, we’d love to hear from you.

LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth.

Our purpose is the foundation on which our culture is built. Our values of Integrity, Partnership, Excellence and Change underpin our purpose and set the standard for everything we do, every day. They go to the heart of who we are and guide our decision making and everyday actions.

Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries. However, we will value your individuality and enable you to bring your true self to work so you can help enrich our diverse workforce.

We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone’s race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. Conforming with applicable law, we can reasonably accommodate applicants’ and employees’ religious practices and beliefs, as well as mental health or physical disability needs.

You will be part of a collaborative and creative culture where we encourage new ideas. We are committed to sustainability across our global business and we are proud to partner with our customers to help them meet their sustainability objectives. Our charity, the LSEG Foundation provides charitable grants to community groups that help people access economic opportunities and build a secure future with financial independence. Colleagues can get involved through fundraising and volunteering.

LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.

Please take a moment to read this privacy notice carefully, as it describes what personal information London Stock Exchange Group (LSEG) (we) may hold about you, what it’s used for, and how it’s obtained, your rights and how to contact us as a data subject .

If you are submitting as a Recruitment Agency Partner, it is essential and your responsibility to ensure that candidates applying to LSEG are aware of this privacy notice.

Engineer, Post Trade (Blockchain) - London Stock Exchange Group
London Stock Exchange Group
London
In office
Mid - Senior
Private salary
+8

Role Profile

The successful candidate for the Engineer, Post Trade role, will be working with the Director Technical Delivery Solution and Delivery, will form part of a team building a complex, ground-up cloud-based critical market infrastructure service in a bold new venture for LSEG. This opening requires a candidate who takes great pride in delivering excellence with excellent logical and technical skills and a can-do attitude combined with a helpful mentality, and a wish to play a critical role in forming and growing a new business.

Key Responsibilities

A strong focus on engineering excellence and coding, adopting an open and hands-on approach to problem-solving and delivery. Engage deeply in technical design and implementation to ensure solutions are robust, scalable, and aligned with industry standards. Actively contribute to all stages of the product engineering life cycle-solutioning, design, coding, and testing-while promoting collaboration and transparency within the team to drive high-quality outcomes.

Demonstrate ownership and pride in work, proactively taking on new responsibilities aligned with product engineering needs. Embrace and apply LSEG engineering principles, diving deep technically to build with purpose and foster excellence within the team through open collaboration. Create an environment of engagement, challenge, and constructive questioning, ensuring trust and respect are maintained and a strong one-team mentality is upheld

Key Skills and Experience

Event driven microservices architecture

  • Strong understanding of microservices design, including pitfalls and best practices.
  • Knowledge of Domain-Driven Design (DDD) and event-driven architecture principles.
  • Experience with containerization and orchestration using Docker and Kubernetes.
  • Skilled in event-driven patterns for efficient and robust communication.
  • Expertise in building and maintaining DevOps pipelines, ideally with GitLab.
  • Proficient in shift-left testing using tools like JUnit, Cucumber, Gherkin, PACT, and Test Containers.
  • Working knowledge of event/message brokers such as Kafka and MQ.

Advanced Java

  • Strong experience in Object-Oriented Programming (OOP).
  • Advanced knowledge of Java 17+ features and practical experience with Spring Boot.
  • Skilled in developing RESTful services, including REST design principles, Swagger/OpenAPI, and Spring REST MVC.
  • Proficient in building and delivering enterprise-grade Java applications.
  • Hands-on experience with data structures, algorithms, concurrency, and multi-threading.

Database Management

  • Strong SQL knowledge with experience in relational databases such as Postgres.
  • Working knowledge of object storage solutions, e.g., AWS S3.
  • Familiarity with database version control tools like Flyway and Liquibase.

Cloud Architecture

  • Experience working with major public cloud platforms, preferably AWS.
  • Hands-on use of cloud-based services such as AWS Aurora, MSK, S3, and IAM.
  • Basic understanding of cloud networking concepts.

Blockchain Integration and Interoperability

  • Understanding of blockchain fundamentals, including consensus mechanisms and smart contracts.
  • Knowledge of interoperability protocols
  • Experience integrating blockchain solutions with existing enterprise systems.
  • Familiarity with cross-chain communication and bridging technologies.
  • Awareness of security considerations in blockchain integration (e.g., cryptographic standards, key management).
  • Knowledge of token standard and transaction lifecycle.

Agile Ways of Working

  • Strong understanding and commitment to the ethos of agile working.
  • Experience working within Scrum and Kanban frameworks.
  • Active participation in sprint ceremonies, including Product Backlog Refinement.
  • Proven collaboration with cross-functional teams in scaled agile environments.

Key Behaviours

  • Delivery-focused: Committed to meeting deadlines and managing stakeholder expectations.
  • Accountable: Takes ownership and responsibility for outcomes.
  • Collaborative: Works effectively within cross-functional teams and fosters teamwork.
  • Communicative: Champions clear, respectful, and constructive communication.
  • Quality-driven: Maintains high standards in code quality, testing, and CI/CD practices.
  • Adaptable & Innovative: Eager to learn, improve, and embrace new technologies.
  • Critical yet Respectful: Challenges ideas constructively while maintaining professionalism.
  • Engineering Mindset: Passionate about solving problems and minimizing complexity.

Career Stage:
Senior Associate

London Stock Exchange Group (LSEG) Information:

Join us and be part of a team that values innovation, quality, and continuous improvement. If you’re ready to take your career to the next level and make a significant impact, we’d love to hear from you.

LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth.

Our purpose is the foundation on which our culture is built. Our values of Integrity, Partnership, Excellence and Change underpin our purpose and set the standard for everything we do, every day. They go to the heart of who we are and guide our decision making and everyday actions.

Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries. However, we will value your individuality and enable you to bring your true self to work so you can help enrich our diverse workforce.

We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone’s race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. Conforming with applicable law, we can reasonably accommodate applicants’ and employees’ religious practices and beliefs, as well as mental health or physical disability needs.

You will be part of a collaborative and creative culture where we encourage new ideas. We are committed to sustainability across our global business and we are proud to partner with our customers to help them meet their sustainability objectives. Our charity, the LSEG Foundation provides charitable grants to community groups that help people access economic opportunities and build a secure future with financial independence. Colleagues can get involved through fundraising and volunteering.

LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.

Please take a moment to read this privacy notice carefully, as it describes what personal information London Stock Exchange Group (LSEG) (we) may hold about you, what it’s used for, and how it’s obtained, your rights and how to contact us as a data subject .

If you are submitting as a Recruitment Agency Partner, it is essential and your responsibility to ensure that candidates applying to LSEG are aware of this privacy notice.

Senior Backend Engineer - Greenfield Fintech Buildout
Stanford Black
London
Remote or hybrid
Senior
Private salary
+3

Senior Backend Engineer The Senior Software Engineer will join a high-performing backend engineering team responsible for building and scaling modern, cloud-native platforms that power customer-centric financial products. You’ll play a key role in designing and delivering resilient, secure, and high-performance systems, working within collaborative squads focused on solving real-world problems at scale. This role sits within an innovative, fast-growing environment that blends the agility of a startup with the backing and stability of a global financial institution. You’ll be instrumental in shaping architecture, influencing engineering standards, and mentoring engineers while delivering impactful solutions. Company Highlights: 1. Backed by a globally established financial institution with significant investment in digital innovation 2. Startup-like environment with a strong engineering-first culture sitting on top of an established user base (circa 70M+ Users) 3. Customer-centric mission focused on building modern financial products from the ground up 4. Highly collaborative structure with cross-functional squads and real ownership 5. Strong emphasis on diversity, inclusion, and continuous learning 6. Cutting Edge Technology - Java 25 and Kotlin, cloud-native infrastructure as well as unlimited Claude 4.6 usage Role Overview: Opportunity to be a founding engineer as part of a Greenfield build out of a Fintech, backed by a major Investment Bank. You will have autonomy and ownership of the platform with the scope of influencing architectural decisions and seeing it through to production. Key Responsibilities: 1. Design and build scalable, high-quality backend systems using modern engineering practices 2. Apply domain-driven design principles to create robust and adaptable services 3. Ensure systems are resilient, fault-tolerant, and free from single points of failure 4. Develop secure, production-ready code with a focus on performance and reliability 5. Own the full lifecycle: from design and development to deployment and optimisation 6. Troubleshoot production issues and implement long-term fixes to prevent recurrence 7. Enable seamless, zero-downtime deployments for critical services 8. Optimize data access patterns and storage solutions for performance and scalability 9. Continuously improve system observability, monitoring, and operational excellence 10. Mentor engineers and contribute to a strong engineering culture Tech Stack: 1. Strong experience with JVM-based languages (Java and/or Kotlin) 2. Experience building microservices and distributed systems at scale 3. Cloud-native development (AWS, GCP, or Azure) 4. Containerization and orchestration (Docker, Kubernetes) 5. CI/CD pipelines and modern DevOps practices 6. Experience with event-driven architecture and messaging systems (e.g. Kafka) 7. Strong understanding of APIs, RESTful services, and system design 8. Database experience (SQL and/or NoSQL) 9. Familiarity with observability tools and monitoring frameworks Ideal Candidate Profile: 1. Strong problem-solving mindset with the ability to take ownership of complex challenges 2. Passion for clean code, maintainability, and long-term system design 3. Collaborative approach with a focus on knowledge sharing and team success 4. Adaptable and comfortable working in fast-paced, evolving environments 5. High standards for engineering quality and ethical decision-making 6. Commercial awareness and interest in fintech or digital banking

FX eTrading Java Developer - VP - Citi
Citi
London
Hybrid
Leader
Private salary

Discover your future at Citi
Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.

Job Overview
About Citi
As the world’s most global bank, Citi gives you the tools to be a trailblazer. We’re not just building technology; we’re building the future of banking. With thousands of employees located around the globe, we are an international team encompassing a broad range of teams, roles, and cultures, and we invite you to come and join us!

Citi’s technology team supports business operations in 100+ countries, across multiple lines of business spanning both Institutional and retail businesses.
The group works to optimize the IT environment by standardizing production platforms, reducing complexity, and introducing innovative solutions that provide new business capabilities, reduce total cost of ownership, and create a competitive advantage for Citi.

We want to regularly engage with talented individuals who are passionate about producing clean, testable code as part of a high performing team. We have found this to be way more important than experience in the financial sector.
We welcome applications from any industry and should you wish to apply your application will be reviewed for a multitude of Developer positions at varying levels.

About FX Tech
Citi FX has a physical presence in 83 countries with 1,400 dedicated staff giving us the largest FX presence of any bank globally. Foreign Exchange has been one of the defining businesses of Citi for much of its 200 year existence.
Citi has the largest FX presence of any bank globally and we proudly put this down to delivering unrivalled service and insight to our clients. Increasing investment in technology has seen us roll out award winning applications. Technology is a central pillar for our plans to sustain and grow our FX business.
Above all, we seek individuals who seek exceptional attitude and aptitude in the people they work with and have a demonstrated passion for delivering FX technology in support of our #1 FX business.

Role Overview/What will you do:

  • Hands on technical implementation of FX trading systems
  • The successful candidate will work with teams across FX Trading Technology implement solutions that benefit the business
  • The role does not involve budget responsibility
  • Drive the design and development of system architecture, work with end-users of the systems, and enhance the quality of deliverables Ensure staff follows Citi documented policy and procedures as well as maintain desktop procedures and supporting documentation for filings on a current basis and in comprehensive manner
  • Contribute to defining and implementing best practices and processes for the department and ensure transparency and consistency across teams
  • Work directly with trading and quant teams

Key Skills and Experience required

  • Proven understanding of FX highly preferred
  • Understanding of ultra low-latency development practices
  • Proven track record of building new systems, replacing legacy systems and renovating existing systems
  • The candidate will have systems (software, hardware, networks) knowledge required to define solutions and trouble shoot issues
  • Exceptional communicator who loves working with people, confident communicating at all levels from an individual team to the entire enterprise
  • Highly credible hands on engineer, confident to deep dive into a product and codebase and offer detailed, constructive analysis and feedback
  • Awareness of industry trends and leveraging new technologies as appropriate

This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.

What we’ll provide you
By joining Citi, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as:

  • 27 days annual leave (plus bank holidays)
  • A discretional annual performance related bonus
  • Private Medical Care & Life Insurance
  • Employee Assistance Program
  • Pension Plan
  • Paid Parental Leave
  • Special discounts for employees, family, and friends
  • Access to an array of learning and development resources

Visit our About Us | Culture, Values & Benefits page to learn more.

Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self, every day. We want the best talent around the world to be energized to join us, motivated to stay and empowered to thrive.


Job Family Group:
Technology ------------------------------------------------------
Job Family:
Applications Development ------------------------------------------------------
Time Type:
Full time ------------------------------------------------------
Most Relevant Skills
Please see the requirements listed above.------------------------------------------------------
Other Relevant Skills
For complementary skills, please see above and/or contact the recruiter.------------------------------------------------------
Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.

If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi .

View Citi’s EEO Policy Statement and the Know Your Rights poster.

Production Management Senior Engineer - Senior Vice President - Citi
Citi
Multiple locations
Hybrid
Senior
Private salary
+6

Discover your future at Citi
Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.

Job Overview
Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance - we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech .

The Senior Engineer in Production Management, will be responsible for the development and overall implementation of software in a complex, critical and large cross-departmental and multi-disciplinary area.
The role is part of a multi-year transformation journey that will require a successful candidate to establish best practices, motivate and promote a cultural shift that will ensure a successful adoption of Engineering Principles and Practices within Production Management.

The role requires a comprehensive understanding of multiple areas within a function and how they interact to achieve the objectives of the function. You will apply an in-depth understanding of the business impact of technical contributions and will be accountable for delivery of a full range of end-to-end projects.

You will have excellent communication skills required to negotiate internally and be involved in short- to medium-term planning of actions and resources for own area.

Key Responsibilities:

  • Set and enforce technical standards across the team, including code quality, review practices, and architectural patterns.

  • Contribute production-quality Java code - this is a hands-on role and active coding is expected.

  • Drive clean, maintainable, test-driven development as a non-negotiable team norm, not an aspiration.

  • Own key architectural decisions and ensure they are documented, communicated, and revisited as requirements evolve.

  • Identify and manage technical debt proactively, balancing pragmatism with long-term maintainability.

  • Demonstrate an in-depth understanding of Software Development Lifecycle and how it integrates within the overall technology landscape to deliver scalable, reliable and resilient applications.

  • Operate in a global environment with on-/near-/off-shore matrix reporting structures.

  • Operate in a highly regulated environment that requires in-depth understanding of the regulatory requirements and the industry implications for our technologies.

  • Improve the service level the team provides to our end users, which includes maximizing operational efficiencies, strengthening incident management, problem management and knowledge sharing practices.

  • Drives Continuous Delivery and Automation efforts across the supported applications by means of Root Cause Analysis reviews, Knowledge management, Performance tuning, and user training.

  • Fosters a culture that promotes transparency and innovation for increased team productivity.

  • Coaching members of the team and outside the immediate reporting line about the best practices and recognises anti-patterns that are quickly addressed.

  • Implements the Agile Framework through one of its implementations like SCRUM or Kanban and ensures it integrates with overall organisation processes.

  • Avidly communicates progress and project status across the organisation and ensures that stakeholders are managed appropriately throughout the execution period.

Qualifications:

  • Strong, demonstrable modern Java development experience (Java 21+), including concurrent programming, JVM tuning, and modern frameworks such as Spring Boot.
  • Proven track record of leading a software engineering team to deliver production systems - not just managing projects but owning outcomes.
  • Deep commitment to clean code, TDD, and code review as engineering disciplines; able to coach others credibly in these practices.
  • Solid understanding of CI/CD principles and tooling and operational experience of orchestration tools for CI/CD and Infrastructure-as-Code tooling (Terraform, Cloud Formation, etc.) is a highly desirable
  • Hands-on experience with Docker and/or Podman for containerisation, including writing and optimising Dockerfiles.
  • Experience deploying and operating workloads on OpenShift or Kubernetes, including familiarity with manifests, Helm charts, resource management, and cluster observability.
  • Comfortable with build tooling (Gradle) and dependency management at scale.
  • Ability to read, review, and reason about front-end codebases - particularly React - without necessarily being a fluent front-end developer.
  • Strong communication skills: can articulate technical trade-offs clearly to both engineers and non-technical stakeholders.
  • Excellent working knowledge of key computer science concepts (networking, operating systems, virtualisation, containerisation, etc.)
  • Polyglot full-stack developer mentality and ability to pick up new languages and skills
  • Excellent debugging and analytical skills: ability to isolate root cause across networking/infrastructure, application and database stacks
  • Operational experience of deploying and running services at scale on top of Docker/Kubernetes stack and a service mesh, like Istio, is highly desirable
  • Experience of senior stakeholder management
  • Consistently demonstrates clear and concise written and verbal communication skills

What we’ll provide you:

By joining Citi, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as:

  • 27 days annual leave (plus bank holidays)
  • A discretional annual performance related bonus
  • Private Medical Care & Life Insurance
  • Employee Assistance Program
  • Pension Plan
  • Paid Parental Leave
  • Special discounts for employees, family, and friends
  • Access to an array of learning and development resources

Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self, every day. We want the best talent around the world to be energized to join us, motivated to stay and empowered to thrive.


Job Family Group:
Technology ------------------------------------------------------
Job Family:
Applications Development ------------------------------------------------------
Time Type:
Full time ------------------------------------------------------
Most Relevant Skills
Please see the requirements listed above.------------------------------------------------------
Other Relevant Skills
For complementary skills, please see above and/or contact the recruiter.------------------------------------------------------
Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.

If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi .

View Citi’s EEO Policy Statement and the Know Your Rights poster.

Lead Java Developer - Citi
Citi
London
Hybrid
Senior
Private salary
+11

Discover your future at Citi
Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.

Job Overview
Discover your future at Citi
Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.

Job Overview
Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance - we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech.

The Lead Java Developer is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming activities.

Responsibilities:

  • Lead delivery of Real-Time and On-Demand Risk enhancements for the Credit Business by partnering directly with London-based trading, MQA, Market Risk, and technology teams.
  • Own the full development lifecycle: architecture, design, implementation, automated testing strategies, release execution, and ongoing production support.
  • Drive alignment of RT/OD workflows with EOD Risk strategy, ensuring functional parity, reconciliation, and controlled cutover.
  • Lead adoption and build-out of RT/OD capabilities on strategic risk platform, including integration of new analytics, workflows, and risk datasets.
  • Deliver significant performance improvements through optimized risk calculation strategies.
  • Guide the migration of compute workloads to AWS, implementing best practices for scalability, throughput, resiliency, and cost efficiency.
  • Collaborate actively with NAM and APAC teams in a follow-the-sun model to improve delivery velocity, reduce operational risk, and ensure rapid triage of production incidents.
  • Provide user-facing updates, demos, documentation, and education to promote adoption and ensure successful rollout of new capabilities.
  • Lead root cause analysis on production issues, drive long-term stability improvements, and strengthen monitoring and observability across the platform.

Recommended Experience:

  • Strong experience in Core Java, J2EE, Spring Framework
  • Exposure to Python scripting and data analysis
  • Experience in fast moving Capital Markets Front Office technology environment with experience in Fixed Income products
  • Working knowledge of Front Office Risk calculations, especially for Credit products
  • Experience in building highly scalable and distributed applications using Microservices, APIs, and Container technologies such as Docker, Kubernetes, OpenShift, etc.
  • Strong expertise in messaging technologies such as Kafka, JMS, gRPC etc
  • Proficient in latency measurement and performance optimization of Java based platforms with focus on JVM tuning
  • Experience with observability stacks like ELK, Prometheus, Grafana, Kiali, Jaeger etc.
  • Sound knowledge for persistence technologies such as relational databases, NoSQL databases, off heap storages and distributed caches
  • Hands-on knowledge of Linux / Unix
  • Experience working with senior Quants and Technology Managers
  • Good verbal and written communication

Education:

  • Bachelor’s degree/University degree or equivalent experience
  • Master’s degree preferred

This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.

What we’ll provide you
By joining Citi, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as:

  • 27 days annual leave (plus bank holidays)
  • A discretional annual performance related bonus
  • Private Medical Care & Life Insurance
  • Employee Assistance Program
  • Pension Plan
  • Paid Parental Leave
  • Special discounts for employees, family, and friends
  • Access to an array of learning and development resources

Visit ourGlobal Benefitspage to learn more.
Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self, every day. We want the best talent around the world to be energized to join us, motivated to stay and empowered to thrive.

Job Family Group:
Technology ------------------------------------------------------
Job Family:
Applications Development ------------------------------------------------------
Time Type:
Full time ------------------------------------------------------
Most Relevant Skills
Please see the requirements listed above.------------------------------------------------------
Other Relevant Skills
For complementary skills, please see above and/or contact the recruiter.------------------------------------------------------
Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.

If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi .

View Citi’s EEO Policy Statement and the Know Your Rights poster.

Senior Staff Generative AI Engineer, Vice President - Citi
Citi
London
Hybrid
Senior
Private salary
+2

Discover your future at Citi
Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.

Job Overview
At Citi, we are pioneering the future of enterprise operations through innovative technology. Our COO-Technology Engineering and Architecture capability is at the forefront, responsible for architecting best-in-class solutions, driving end-to-end transformation, and integrating cutting-edge Generative AI solutions to unlock unparalleled efficiency, automation, and risk reduction across our global operations.

The Team: Innovating at Scale
Our team is a dynamic hub of engineers and innovators dedicated to solving complex business challenges with intelligent solutions. We believe in building robust, scalable products that deliver tangible impact. We foster an environment of continuous learning, rapid iteration, and strong engineering practices. Here, you’ll work alongside passionate experts, leverage the latest in AI, and contribute to a culture that values clean code, thoughtful design, and direct, hands-on problem-solving. We’re not just adopting AI; we’re building the intelligence that powers our enterprise.

The Role:
We are seeking an exceptional Staff Generative AI Engineer to join our team. This is a critical, deeply hands-on role for a seasoned software engineer with a profound passion for Generative AI, Large Language Models (LLMs), and agentic frameworks. You will be instrumental in designing, building, and deploying real-world, commercial production systems, not just proofs-of-concept.
This is an Individual Contributor (IC) role with no direct people management responsibilities.
Your expertise in containers (especially OpenShift), strong Python programming, and advanced LLM/agentic frameworks will be essential as you drive significant operational efficiencies and set new standards for engineering excellence. If you’re a builder who thrives on technical challenge, delivering measurable impact, and mentoring others while getting your hands dirty with code, we want to hear from you.
As a Staff Generative AI Engineer, you will:

  • Architect & Build Production Systems: Lead the hands-on development of sophisticated Generative AI applications, LLM-powered solutions, and intricate agentic frameworks primarily using Python. Your code will be clean, performant, scalable, and deployed directly into commercial production environments, solving real business problems.
  • Pioneer Automation with Agents: Design and implement intelligent agents capable of understanding, reasoning, and orchestrating complex workflows to automate critical enterprise business processes, driving efficiency and reducing operational risk at scale.
  • Master Containerized Deployments: Demonstrate deep comfort and expertise with container technologies, particularly deploying and managing applications within OpenShift environments.
  • Drive Technical Direction & Ownership: Contribute significantly to the technical strategy and roadmap for Generative AI adoption, influencing architectural decisions and technology choices across our product portfolio, ensuring all solutions are production-ready.
  • Champion Engineering Excellence: Instill and uphold rigorous software engineering best practices, including robust testing, code reviews, documentation, and continuous integration/delivery, ensuring the highest quality for our mission-critical systems running in production.
  • Innovate & Research: Stay at the bleeding edge of Generative AI, actively exploring new models, techniques, and frameworks. Contribute to both applied engineering and research initiatives within the domain. You will have access to state-of-the-art AI-assisted development tools like Devin and Copilot to amplify your productivity and creativity.
  • Mentor & Collaborate: Act as a technical leader and mentor to junior engineers, fostering a culture of knowledge sharing and continuous improvement. Collaborate closely with cross-functional teams, product managers, and stakeholders to deliver impactful solutions.
  • Iterate & Deliver: Thrive in an agile, fast-paced environment, prioritizing rapid delivery, iterative development, and adaptability. Focus on delivering measurable business value and learning quickly from prototypes and deployments, always with a path to production in mind.
  • Ensure Responsible AI: Design and implement robust guardrails and ethical considerations into AI solutions, proactively assessing and mitigating risks in line with organizational and regulatory standards.

Minimum Qualifications:

  • Proven professional software engineering experience, demonstrating a strong track record of designing, building, and delivering scalable enterprise-grade solutions in commercial production environments, not just proofs-of-concept.
  • Expert-level proficiency in Python is a must-have, with a deep understanding of its ecosystem for AI/ML development, data engineering, and backend services. Full-stack development experience is a distinct advantage.
  • Extensive hands-on experience with Generative AI concepts, Large Language Models (LLMs), transformer architectures, RAG, and advanced agentic frameworks (e.g., LangChain, LangGraph, Google ADK. Optionally AutoGen, CrewAI, LlamaIndex, Semantic Kernel).
  • Deep comfort and practical experience with containers and orchestration technologies, specifically OpenShift.
  • Demonstrated ability to architect, develop, and deploy highly performant, large-scale AI/ML systems into production environments.
  • Strong understanding of modern software development principles, clean code practices, data structures, algorithms, and distributed systems.
  • Proficiency with Relational (preferably, PostgreSQL) and Vector (preferably, pgvector) databases.

Preferred Qualifications (Bonus Points):

  • Proficiency in additional programming languages such as Java, JavaScript/TypeScript, or Golang.
  • Experience with specific frameworks like Spring (AI, Boot), N8N, or Flask.
  • Familiarity with messaging and integration platforms such as Kafka or JMS/MQ.
  • Experience with UI development using modern frameworks like React JS or StreamLit for interactive AI applications.
  • Practical experience in model risk management, developing AI guardrails, and establishing end-user adoption pathways for Generative AI solutions.
  • A proven track record of contributing to open-source projects or publishing relevant research in AI/ML.

Why You’ll Love Working Here:

  • Unprecedented Impact & Visibility: Contribute to critical, high-visibility projects that are transforming a global enterprise, working on firm-wide initiatives that directly influence our operational future.
  • Cutting-Edge Technology: Work with the latest Generative AI models, agentic frameworks, and cloud-native technologies, enhanced by access to AI-assisted development tools like Devin and Copilot.
  • Growth & Development: A culture of continuous learning, mentorship, and opportunities to lead and innovate. Benefit from extensive learning resources including Udemy for Business and Pluralsight.
  • Collaborative Environment: Join a highly skilled, passionate team that values collaboration, intellectual curiosity, and shared success.
  • Flexible Work Environment: Embrace a hybrid working model, balancing productive in-office collaboration (3 days) with the flexibility of working from home (up to 2 days).
  • Global Scale: Build solutions that operate at a massive scale, impacting users and operations worldwide.

Join us to build the future of intelligent enterprise solutions!

Job Family Group:
Technology ------------------------------------------------------
Job Family:
Systems & Engineering ------------------------------------------------------
Time Type:
Full time ------------------------------------------------------
Most Relevant Skills
Please see the requirements listed above.------------------------------------------------------
Other Relevant Skills
For complementary skills, please see above and/or contact the recruiter.------------------------------------------------------
Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.

If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi .

View Citi’s EEO Policy Statement and the Know Your Rights poster.

Frequently asked questions
You can find a variety of Java positions in London including Java Developer, Java Engineer, Backend Developer, Full Stack Developer with Java expertise, and Java Software Architect roles across different industries.
Many employers require candidates to have UK work authorization or a valid visa permitting employment. However, some companies sponsor visas for qualified Java professionals. Check each job listing for specific requirements.
Java job openings in London range from junior and entry-level positions to senior and lead roles. Job descriptions will specify the required years of experience, commonly from 1 year for junior roles up to 7+ years for senior positions.
Yes, several employers in London offer remote or hybrid working options for Java roles, reflecting the increasing demand for flexible work arrangements. Be sure to check the job details for remote work options.
To improve your chances, ensure your CV highlights strong Java skills and relevant project experience, gain knowledge of popular frameworks like Spring and Hibernate, prepare for technical interviews, and stay updated with the latest Java developments.