Python Jobs in London

Role: Data Scientist Type: Contracts (6 Months) Location: London, UK (REMOTE) Working Model: Fully Remote Payrate: (Apply online only) GBP/day on PAYE (Apply online only) GBP/day on RUPAYE (Apply online only) GBP/day on Inside IR35 on Umbrella The Role: Join our team to drive data quality and empower cross-functional decision-making by building robust pipelines and self-serve data products. You will be essential in defining metrics for platform health, developer productivity, and ML/AI adoption. What You Will Do: Own end-to-end analytical data modeling in BigQuery using dbt. Build reliable data pipelines utilizing SQL, Python, and distributed processing frameworks (Apache Spark, Scio, Beam, or Flink). Develop clear, story-driven dashboards using tools like Looker or Tableau. Champion data quality, implement CI/CD for dbt models, and mentor junior team members.What You Bring: 5+ years of experience in analytics or data engineering, with deep expertise in SQL. Extensive experience with dbt, a cloud data warehouse, and workflow orchestrators (Airflow, Dagster, Prefect, or Flyte). Proficiency in Python for data analysis and automation. Bonus: Experience with experimentation, ML/AI metrics, or platform productivity.This is an urgent vacancy with a deadline where the hiring manager is shortlisting for an interview immediately. Please apply with a copy of your CV or send it praveen. sukkala2 @ randstaddigital. Com Randstad Technologies is acting as an Employment Business in relation to this vacancy

Lead Infrastructure Automation Engineer (on perm and Cloud)

Adecco

Job title: Lead Infrastructure Automation Engineer (on perm and Cloud)
Contract: 6 Months -possibility for extension
Location: London HEX - 3 days a week
Rate: Competitive day rate (Inside IR35)
Working pattern: Full time

Are you ready to take the lead in revolutionising infrastructure automation? Our client, a dynamic and innovative organisation, is on the lookout for a passionate Infrastructure Automation Engineer Lead - VP to spearhead their ambitious automation initiative across all infrastructure functions. This is your chance to drive significant change and enhance the efficiency of global operations!

About the Role:

As the Infrastructure Automation Engineer Lead, you will play a pivotal role in accelerating the adoption of infrastructure-as-code and automation solutions. Your expertise will help shape modern tooling strategies, ensuring scalable and repeatable automation solutions across various infrastructure domains.

What We’re Looking For:

Expertise in Automation: Proven experience with Infrastructure Automation, Infrastructure-as-Code, and automation solutions.
Technical Proficiency: Strong skills in Ansible, Terraform, Python, and cloud technologies.
Transformation / Deployment : on perm and Cloud
DevSecOps Knowledge: Familiarity with compliance and security practises in automation.
Collaborative Spirit: Ability to manage relationships across teams and regions, facilitating effective communication and cooperation.
Adaptability: Preparedness to work during unsociable hours and be available for escalations when needed.

Key Responsibilities:

Lead Automation Initiatives: Drive automation supporting 3000 servers and services globally.
Collaborative Design: Work closely with infrastructure SMEs, SREs, DevOps teams, and security to create reusable automation frameworks.
Innovative Solutions: Design, build, and maintain automation workflows and IaC modules using tools like Ansible, Terraform, and Python.
standardisation Advocate: Promote standardisation of automation practises across platform teams for consistency and reuse.
Transformative Collaboration: Partner with Development, Security, and Global Infrastructure teams to replace manual processes with scalable automated solutions.
Roadmap Delivery: Contribute to the Infrastructure Automation Programme, achieving defined roadmaps and KPIs.
Security Compliance: Ensure all automation solutions meet stringent security and compliance requirements.

Why Join Us?

Transformational Impact: Be at the forefront of an essential initiative that enhances operational efficiency and resilience.
Team Environment: Work within a dedicated team that values collaboration and innovation.
Career Growth: Opportunities for ongoing development of technical skills and career advancement within a forward-thinking organisation.

If you’re excited about leading the charge in infrastructure automation and are ready to make a tangible impact, we would love to hear from you! Join our client on this exhilarating journey towards technological excellence.

Apply Now! Your future begins here, where innovation meets opportunity!

Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone’s chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. If you require reasonable adjustments at any stage, please let us know and we will be happy to support you.

Machine Learning Engineering Lead

We believe in better. And we make it happen.

Better content. Better products. And better careers.

Working in Tech, Product or Data at Sky is about building the next and the new. From broadband to broadcast, streaming to mobile, SkyQ to Sky Glass, we never stand still. We optimise and innovate.

We turn big ideas into the products, content and services millions of people love.

And we do it all right here at Sky.

What you’ll do
We are seeking a highly skilled Senior Machine Learning Engineer to advance our personalised recommendation systems by developing efficient, low-latency solutions that serve millions of users globally. The successful candidate will collaborate closely with data scientists, engineers, and product managers to design intelligent content recommendation mechanisms and drive the ongoing advancement of our Machine Learning Platform.

Model Development: Design, train, and optimise machine learning models focused on user personalisation, encompassing recommendation engines, ranking algorithms, user segmentation, and content analysis.
Data Pipeline Engineering: Construct and maintain robust and scalable data pipelines for feature engineering and model training utilising both structured and unstructured large-scale datasets.
Production Deployment: Deploy and supervise ML models in production environments, ensuring high availability, optimal performance, and continued relevance.
Experimentation: Design and analysis of A/B tests and offline experiments to evaluate model efficacy and support continuous improvement.
Cross-Functional Collaboration: Engage with multidisciplinary teams to align machine learning initiatives with business objectives and user needs.
Research & Innovation: Evaluate emerging research in machine learning, deep learning, and personalisation for potential integration within existing systems.

What you’ll bring

Demonstrated expertise in the full lifecycle of machine learning, from model development, deployment and serving to monitoring and maintenance.
Strong proficiency in Python and knowledge of ML libraries/frameworks (e.g., TensorFlow, PyTorch). .
Experience using ML Training frameworks (e.g., TFX, Kubeflow Pipelines SDK) and Model Serving technologies (eg. Tensorflow Serving, Triton, TorchServe).
Experience with high-volume data processing and real-time streaming architectures.
Strong understanding of recommendation system design and personalisation algorithms.
Familiarity with Generative AI and its applications in production settings.
Exceptional communication and analytical problem-solving skills.
Proven successful experience in mentoring less experienced engineers to improve their technical skills

A Typical Day at the Office

When you come in, you can grab a coffee or a bit of breakfast from one of the many (subsidised) cafés or restaurants on site. Settle in at your desk, have a quick look at Slack to see what’s happening in the tech communities, then catch up with everyone at the team stand-up. After that, you’ll join your team and pick the first task to get cracking on.

At lunchtime, you’ve got a few choices: head to The Pavilion for a bite with the team, pop to the onsite gym for a quick workout, or join in with a lunchtime community meetup - whatever suits you. Once you’re back, you’ll carry on working with your team on your current feature.

Later in the afternoon, the team might fancy a quick coffee break before wrapping up the day with a team retrospective.

Global OTT Technology

Our team develops and supports market-leading video streaming services, underpinned by state-of-the-art engineering principles. We do this at huge scale: for over 50 million customers globally, spanning NBCUniversal Peacock in the US and Sky, NOW and SkyShowtime across Europe. No matter the device, the time or the place, we make sure that our diverse audiences can easily find and enjoy whatever they want to watch, choosing from the world’s best entertainment, news and sport.

The rewards

There’s one thing people can’t stop talking about when it comes to #LifeAtSky: the perks. Here’s a taster:

Sky Q, for the TV you love all in one place
The magic of Sky Glass at an exclusive rate
A generous pension package
Private healthcare
Discounted mobile and broadband
A wide range of Sky VIP rewards and experiences

Inclusion & how you’ll work

We are a Disability Confident Employer, and welcome and encourage applications from all candidates. We will look to ensure a fair and consistent experience for all, and will make reasonable adjustments to support you where appropriate. Please flag any adjustments you need to your recruiter as early as you can.

We’ve embraced hybrid working and split our time between unique office spaces and the convenience of working from home. You’ll find out more about what hybrid working looks like for your role later on in the recruitment process.

Your office space

Osterley

Our Osterley Campus is a 10-minute walk from Syon Lane train station. Or you can hop on one of our free shuttle buses that run to and from Osterley, Gunnersbury, Ealing Broadway and South Ealing tube stations. There are also plenty of bike shelters and showers.

On campus, you’ll find 13 subsidised restaurants, cafes, and a Waitrose. You can keep in shape at our subsidised gym, catch the latest shows and movies at our cinema, get your car washed, and even get pampered at our beauty salon.

We’d love to hear from you

Inventive, forward-thinking minds come together to work in Tech, Product and Data at Sky. It’s a place where you can explore what if, how far, and what next.

But better doesn’t stop at what we do, it’s how we do it, too. We embrace each other’s differences. We support our community and contribute to a sustainable future for our business and the planet.

If you believe in better, we’ll back you all the way.
Just so you know: if your application is successful, we’ll ask you to complete a criminal record check. And depending on the role you have applied for and the nature of any convictions you may have, we might have to withdraw the offer.

AWS Cloud Security Engineer - Tribus

AWS Cloud Security Engineer - Global Quant Trading Environment - Hong Kong - Relocation Package

A leading global trading and investment firm is hiring an AWS Cloud Security Engineer to strengthen its security posture across high-performance research and trading platforms.

You’ll be at the centre of securing and optimising AWS infrastructure - from IAM and SCP/RCP policy management through to encryption, automation, and real-time monitoring.

This role offers exposure to cutting-edge environments where technology, data, and security are mission-critical.

What you’ll do

Implement and enhance AWS cloud security controls.
Manage IAM frameworks and enforce least-privilege access.
Deploy GuardDuty, Security Hub, Config, and CloudTrail for proactive monitoring.
Support encryption strategies (KMS) to safeguard sensitive data.
Define and maintain AWS security baselines and compliance checks.
Build automation frameworks using Terraform/CloudFormation.
Strengthen cloud security operations via CSPM, CWNP, and ASPM methodologies.
Partner with IT, risk, and leadership teams to align security with business goals.

What we’re looking for

3+ years in cloud security, platform security, or DevSecOps.
Strong AWS expertise, especially IAM, SCP, RCP, and security baselining.
Hands-on with Terraform/CloudFormation and Python scripting.
Familiarity with cloud security operations tooling (CSPM/CWNP/ASPM).
Strong analytical, problem-solving, and stakeholder engagement skills.
A growth mindset with eagerness to expand in cloud security.

If you’re seeking a high-impact role where AWS security is front and centre, this is a standout opportunity.

Leading industry & relocation packages available

Python Developer - Quantitative Developer - Tribus

Quantitative Developer – Research Team - Hong Kong - Relocation Packages

A leading global trading firm is looking for a Quantitative Developer to join its research technology group. This team builds the infrastructure powering trading signal research, enabling researchers and traders to test and scale strategies across global markets.

What you’ll do

Design and build Python and C++ tools for quant research and signal generation
Partner with researchers and traders to translate requirements into software solutions
Handle large-scale data ingestion and processing pipelines
Implement and optimize algorithms, including regressions and machine learning models
Leverage HPC and distributed systems for performance and scalability
Maintain, troubleshoot, and improve existing platforms

What we’re looking for

5+ years of hands-on coding experience solving complex problems
Strong skills in Python and/or C++
Exposure to distributed computing, ML, platform design, or system architecture
Passion for technology, mathematics, and quantitative problem-solving
Ability to work autonomously and mentor others

This is a unique chance to contribute at the heart of a global trading research team, combining software engineering with quantitative innovation.

Leading industry compensation & relocation available

AWS Engineer / Architect - Tribus

Location: Hong Kong - relocation package on offer - industry experience required

A leading proprietary trading firm in the crypto space is searching for an experienced Senior AWS Engineer/Architect to own and evolve its global trading infrastructure.

The team operates at the cutting edge of high-frequency trading, processing billions in daily volume across venues worldwide.

What you’ll do

Design and optimize multi-region AWS architectures to support ultra-low latency systems.
Engineer high-throughput data pipelines and automate large-scale deployments.
Deep-dive into Linux networking and system tuning for maximum performance.
Partner with developers and quants to align infrastructure with trading strategies.
Drive infrastructure-as-code, monitoring, and security best practices across the platform.

What we’re looking for

8+ years in AWS architecture/engineering with production-grade systems.
Expertise in Linux internals, networking, and large-scale system optimization.
Strong scripting skills (Python, Bash) and hands-on IaC experience (Terraform/Ansible).
Background in trading, HFT, or other ultra-low-latency environments is highly valued.

Why apply?

Be part of a performance-driven, flat-structured team shaping the future of crypto trading.

Work on problems where nanoseconds matter, using AWS at true scale.

Competitive compensation, relocation support, and a role at the frontier of financial markets.

Senior Market Risk Developer – Historical Timeseries - Jefferies

Senior Market Risk Developer – Historical Timeseries

Position / Group description:

The Risk Technology group builds and supports a global risk platform enabling the Risk Management group to oversee all areas of risk across the Firm. The risk platform provides capabilities for measuring, quantifying, analyzing, reporting, and controlling exposures across market and credit.

The position is for a Techno-Functional Developer to design, enhance, and maintain the Market Risk Time Series infrastructure built on Snowflake and AWS. This role requires strong technical skills combined with deep domain expertise in market risk, including VaR , end-of-day market data , and historical time series. The candidate will work closely with the Market Data team and Risk stakeholders to ensure accurate, scalable, and auditable data solutions for risk analytics.

Primary Responsibilities:

Data Sourcing & Integration
Source historical market data from multiple internal and external providers.
Integrate with quant libraries to identify data quality issues and validate risk inputs.

Data Quality & Remediation

Integrate with Quant APIs to detect and remediate common data quality issues (gaps, stale data, outliers, misalignments).
Implement algorithms for gap-filling, back-filling, and anomaly correction to ensure data is fit for VaR and SVaR calculations.

Infrastructure Development

Build and enhance Snowflake-based time series infrastructure for scalability and performance.
Develop Python ETL/ELT pipelines and optimized SQL models for historical time series storage and retrieval.

Collaboration & Governance

Work closely with Market Data and Risk teams to define canonical market observables and maintain data lineage.
Ensure reproducibility and auditability of risk inputs for regulatory compliance.

Essential Experience/ Skills:

7+ years of hands-on experience in developing applications using Relational Databases and Big-data platforms.
Strong Python (pandas, numpy, data engineering best practices).
Advanced SQL and Snowflake (warehouse management, streams/tasks, query optimization).

Domain Knowledge

Market risk concepts: VaR, SVaR, sensitivities, stress testing.
Handling end-of-day market data and historical time series across asset classes.
Techno-Functional
Ability to translate risk requirements into technical solutions and data contracts.
Bachelor’s degree, preferably in Computer Science, Engineering, Mathematics, or similar technical discipline

Personal Attributes:

Strong analytical and problem-solving skills, including the ability to troubleshoot and resolve complex data related issues
Strong verbal and written communication skills
Self-starter and entrepreneurial in approach
Ability to escalate and follow-up proactively
Good time management skills

At Jefferies, we believe that diversity fosters creativity, innovation and thought leadership through the infusion of new ideas and perspectives. We have made a commitment to building a culture that provides opportunities for all employees regardless of our differences and supports a workforce that is reflective of the communities where we work and live. As a result, we are able to pool our collective insights and intelligence to provide fresh and innovative thinking for our clients.

Jefferies is an equal employment opportunity employer. We practice equal opportunity for all, and all qualified applicants will receive consideration for employment without regard to race, creed, color, national origin, ancestry, religion, gender, pregnancy, age, physical or mental disability, marital status, sexual orientation, gender identity or expression, veteran or military status, genetic information, reproductive health decisions, or any other factor protected by law. We are committed to hiring the most qualified applicants and complying with all federal, state, and local equal employment opportunity laws. As part of this commitment, Jefferies will extend reasonable accommodations to individuals with qualified disabilities, as appropriate, under applicable law.

Linux Administrator - eFinancialCareers

Linux Administrator | Systematic Hedge Fund

A high-performance systematic hedge fund are seeking an Infrastructure Operations Engineer (Linux Admin) to help maintain and evolve the global Linux estate that underpins all trading and research activity. This team is responsible for ensuring the firm’s large-scale compute environment remains stable, well-maintained, and ready to support continuous growth across quant, trading, and data engineering functions.

You’ll work across server deployments, Linux administration, hardware lifecycle, automation, and platform improvements - collaborating closely with engineering, EUC, and application teams. This is a hands-on role suited to someone who enjoys Linux admin and automation work within a highly technical environment.

Role Overview

Ensure the health, stability, and performance of the firm’s global Linux platform across trading and research workloads.
Deploy new Linux servers and manage full end-to-end build processes from hardware provisioning through OS installation.
Carry out system upgrades, patching, and platform maintenance across Red Hat-based environments.
Contribute to automation, monitoring, and deployment initiatives using modern tooling.
Work closely with EUC, application, and engineering teams on both project delivery and operational support.
Produce and maintain clear documentation to support consistency and repeatability across the estate.
Participate in an on-call rotation as part of a global operational team.

Requirements

Strong hands-on Linux administration experience (Red Hat, CentOS, or similar).
Full server build capability - from hardware provisioning to OS installation and configuration.
Understanding of AMD/Intel server hardware and common failure types.
Solid networking fundamentals (TCP/UDP, LAN/WAN concepts).
Experience with automation tooling, ideally Ansible.
Scripting familiarity (Bash or Python) for automation and troubleshooting.
Bonus: Experience with storage technologies such as NFS or SAN environments.

Company Highlights

Technology-led culture – drives both trading and internal engineering investment
c.1,000 employees – large enough for scale, small enough for meaningful individual impact
Brand-new London HQ – core engineering and trading hub with free on-site gym
Flat structure – direct access to senior engineers and C-level leadership
Excellent Glassdoor ratings consistently quoting a strong work-life balance
Benefits: Free breakfast & lunch, 13% pension, year-one guaranteed bonus, and more

Trade Operations and Systems Engineer - CBCX GROUP LTD

Trade Operations and Systems Engineer （Chinese language skill is desired） We are seeking a highly skilled Trade Operations and Systems Engineer to oversee and optimise our day-to-day CFD trading operations, with a particular focus on trade execution monitoring, system automation, and the development engineer for trading P&L, open positions, and trade reconciliation. This role sits at the intersection of trading technology and operational risk management and requires a candidate with both deep technical capabilities and strong domain knowledge in FX and CFD trading. The successful candidate will be responsible for ensuring seamless and accurate trade execution, settlement, and reconciliation. The position requires hands-on experience with CFD trading platforms (such as MT4/MT5, PXM/OZ, XCore, Integal), database management, and FIX protocol integration, as well as the ability to streamline operational workflows through coding and automation. Candidates should be well-versed in supporting front-office trading teams and aligning back-office processes with regulatory standards and data accuracy requirements. Some responsibilities in this role involve communicating with clients and partners who primarily use Chinese, Chinese language proficiency (spoken and written) is highly desired. Key Responsibilities Trade Operations & System Development Monitor and manage CFD/FX trade executions, including real-time monitoring of trade flow and open positions across platforms. Maintain and improve systems for automated calculation of profit and loss (P&L), margin usage, and open positions using C++, Python, SQL, and related technologies. Develop robust automated workflows for trade settlement, transaction reconciliation, and risk exposure tracking. Ensure high system availability, stability, and performance for trading applications. Troubleshoot and optimise operational workflows across front, middle, and back-office environments. Trading Infrastructure & Protocol Management Integrate and manage trade bridge connections and APIs for trading execution and post-trade operations. Resolve issues related to trade discrepancies, latency, or order mismatches in FIX messaging. Assist in onboarding new liquidity providers and counterparties via FIX protocol and bridging platforms. Data Management, Reporting & Reconciliation Maintain and optimise relational databases to store large volumes of trade data for analysis and reporting. Implement ETL (Extract, Transform, Load) pipelines to ensure data accuracy between internal systems and third-party platforms. Create and manage interactive dashboards and performance reports using Power BI or Tableau. Conduct daily reconciliation between front office systems, back office, custodians, and liquidity providers. Compliance, Documentation & Operational Risk Ensure compliance with internal policies, industry regulations, and data protection laws (e.g., GDPR). Maintain detailed technical documentation covering system architecture, workflows, and exception handling procedures. Proactively identify and resolve operational risk incidents or anomalies in trading processes. Required Qualifications and Experience 2–5 years of experience in CFD/FX operations, trading systems engineering within the brokerage or banking industry. Solid understanding of CFD and FX trading instruments, market structure, and execution workflows. Hands-on experience with trading platforms including MT4/MT5, PXM/OZ, XCore, Integral, GUI, and other comparable systems, with proven capability in system integration and technical troubleshooting. Experience in trade lifecycle management, reconciliation, and exception resolution between front, middle, and back-office systems. Technical Skills Proficient in Python, SQL, C++, C#, and Java for developing automation tools, system integrations, and data transformation scripts. Strong database design and optimisation experience (SQL/NoSQL). Competence in building ETL pipelines, custom APIs, and data warehousing solutions. Skilled in Power BI or Tableau for real-time operational and financial reporting. Familiarity with bridging and aggregation platforms such as OneZero, Integral, and XCore GUI. Experience with distributed systems and high-volume data processing environments. Soft Skills Strong interpersonal and communication skills with the ability to collaborate cross-functionally with trading, compliance, risk, and IT teams. Ability to explain complex technical solutions to non-technical stakeholders. Resilient and calm under pressure in high-volume trading environments. Highly organised, with a proactive and analytical approach to problem-solving. Preferred Qualifications Bachelor's or Master’s degree in Computer Science, Financial Engineering, Quantitative Finance, Mathematics or a related discipline. Professional background in FX brokerage, liquidity management, or electronic trading. Fluency in Mandarin in desired. Performance-based bonus scheme with clear KPIs. Exposure to cutting-edge trading technologies and innovation in fintech. Opportunities for career development and training in advanced financial systems. Collaborative and agile working culture. Employment Type Full-Time, Permanent Work schedule: Monday to Friday Application Questions Do you hold a degree in Computer Science, Financial Engineering, or a related field? Do you have experience in FX operations, database development, or system engineering Are you fluent in Mandarin?

Director, Innovation Lab & AI Engineering - Citi

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
Citi Innovation Labs is a global network of innovation centers focused on delivering cutting edge solutions to all of Citi’s lines of business.

Our Mission is to create a competitive advantage for our clients, manifested as change in the way they operate, by providing innovative technological solutions with strong client engagement, from idea to production, and by leveraging the entrepreneurial spirit and technological excellence fostered in the Innovation Labs.

Our Labs Network is a global organization that spans across New York, London, Tel Aviv. We focus on delivering innovative products using cutting-edge technologies in highly complex architectures and with the highest delivery standards. The Innovation Labs team perform research and implementation in many advanced domains spanning across AI, Machine learning, NLP, Analytics, Blockchain/Distributed Ledger Technology and many more.

The Role:
We’re on the hunt for a highly skilled and experienced senior Engineering manager to lead the delivery of Generative AI solutions at the Citi Innovation Lab. The ideal candidate has excellent track record in high scale engineering products and specifically AI solutions. In this role, you’ll be a key player in driving innovative projects throughout the bank using generative AI and Large Language Models.

Responsibilities:

Lead an engineering unit responsible for a broad range of AI tools and technologies
Lead research and development activities globally with the goal of finding innovative solutions with substantial impact potential for the business units across Citi
Manage executive stakeholder audience in technology by acting as a partner, trusted advisor and operating through influence
Work with internal and external partners to design, validate and deliver solutions with a commercial benefit for Citi
Manage multiple concurrent initiatives and projects of varying sizes & complexity
Engage with technical and business stakeholders to define and design overall architecture for key use-cases
Work with external vendors and start-ups around joint initiatives and around exploration of new directions. Manage partner and vendor relationships where required
Partner with Citi’s AI Centre of Excellence to ensure best practice is followed from the perspectives of good governance, risk management, standardization, and tooling.

Qualifications:

Academic degree in Computer Sciences or equivalent. MSc or MBA - preferred
At least 15 years of experience in the software industry
At least 3 years of proven experience in leading an engineering organization (15+ employees)
5 years+ experience in Machine Learning, delivering complex solutions to production.
Great passion and proven hands-on experience with AI technologies
Strong and diverse technical background. Ability to quickly learn and understand new technologies, influence highly skilled engineering teams and overall have a personal impact on technology decisions and vision.
Vast experience with cloud architectures, and specific experience with public cloud offerings
In-depth knowledge of deep learning frameworks such as TensorFlow, PyTorch, and other open sources libraries / APIs or similar.
Proficiency in programming languages such as Python.
Excellent communication skills
Leadership and organizational abilities
Excellent analytical and problem-solving skills
Strategic thinker
Experience in the financial industry - major advantage
Background in Securities Services / Custody - major advantage

What we’ll provide you
This is a unique role that will put you in the position to be part of a new venture and actively drive change. Every day there will be new challenges that will help you develop new skills that can drive your career.
By joining Citi London, 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

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 Production Engineering Manager - Citi

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 .

As an Engineering Manager you will improve the productivity of engineers, create effective reporting mechanisms, and ensure timely and budget-conscious completion of work within the Site Reliability Engineering (SRE) team. You will play a crucial role in driving operational excellence, fostering collaboration, and enabling efficient project management. This position requires a combination of technical expertise, leadership abilities, and exceptional organisational skills.

Skills:

Technical Proficiency: Possess a strong understanding of SRE principles, DevOps practices, and relevant technologies to effectively guide and support engineering teams.
Project Management: Ability to manage multiple projects simultaneously, set priorities, allocate resources, and ensure timely completion within budget constraints.
Analytical Thinking: Demonstrate a data-driven approach to problem-solving and decision-making, utilising metrics, and performance indicators to assess team efficiency and identify improvement opportunities.
Leadership: Exhibit strong leadership qualities, fostering a positive and collaborative work environment, providing guidance and mentorship to team members, and promoting a culture of continuous learning.
Communication: Excellent verbal and written communication skills, enabling effective collaboration with cross-functional teams, stakeholders, and management.
Stakeholder Management: Ability to understand and address the needs of various stakeholders, including engineers, product managers, and business partners.
Process Improvement: Proven experience in streamlining workflows, identifying bottlenecks, and implementing process enhancements to optimise efficiency and productivity.
Budget Management: Familiarity with budgeting and cost control practices, ensuring projects are delivered within financial constraints while maintaining quality standards.
Quality Assurance: Knowledge of quality assurance principles and best practices to ensure deliverables meet defined standards and specifications.
Adaptability: Ability to thrive in a dynamic and fast-paced environment, quickly adapting to changing priorities and business needs.

Responsibilities:

Be both highly technical and an effective people manager
Lead multiple teams that deliver on multiple projects of increasing dependencies in an ambiguous and high-impact area
Collaborate with various functions, drive engineering initiatives, and have an impact at an organisational level
Measure the impact of your team and set clear expectations and goals
Partner with leadership to influence and drive org design, contribution, and prioritization
Lead a team of engineers and product managers in the ideation and technical development of innovative projects to streamline and automate critical business challenges
Provide strategic and operational oversight for software initiatives in Production Management
Work closely with business aligned SRE leads to develop short and long-term strategies
Manage stakeholder expectations, resolve conflicts, and keep everyone involved aligned
Develop and drive execution on 6 month and 1 year road maps
Drive innovation, establish new approaches in improving productivity
Establish a metrics-based organization, develop key operational metrics and push for continuous improvement
Ensure system security, data integrity and compliance for regulatory requirements

Qualifications:

Bachelor’s degree (computer science or related fields) or equivalent experience in building scalable solutions to improve the service reliability and/or increase productivity and efficiency
Experience with object-oriented or scripting programming languages such as Java or Python to build DevOps/SRE solutions
Experience with agile systems development methodologies
Relevant experience managing engineering teams
Organisational and analytical 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 Support ------------------------------------------------------
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.

Infrastructure Architect - Low Latency Engineering (Rates eTrading Tech) - Citi

+11

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.

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

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 Software Engineer - Build AI Tools (Python, GoLang) - Citi

Job Overview
Citi, the world leading global bank, has approximately 200 million customer accounts and a presence in more than 160 countries and jurisdictions worldwide. Citi provides consumers, corporations, governments, and institutions with a broad range of financial products and services, including consumer banking and credit, corporate and investment banking, securities brokerage, transaction services, and wealth management. Citi enables clients to achieve their strategic financial objectives by providing them with cutting-edge ideas, best-in-class products and solutions, and unparalleled access to capital and liquidity.

The Team:
Cloud Technology Services (CTS) is responsible for looking after Citi’s Cloud programme across Public and Private Cloud. It has several new and exciting programmes utilising cutting edge cloud and container technologies, with a view to ensuring that our offerings are best in class and enable our wider business lines and clients alike.

The job:
This role sits within the newly formed GenAI Security team, which is responsible for ensuring, maintaining, and improving the security of our GenAi Prompt security capabilities within the firm. You will be responsible for engineering solutions that strengthen and broaden our security capabilities in an environment that is changing daily whilst also working with vendor products to achieve the same aims. You will have the opportunity to partner with key Engineering teams, alongside Operations and Site Reliability Engineering.
Effective capabilities that combine security and engineering excellence are key to success.

What the role covers:

Designing, developing, optimizing, and enhancing a GenAI prompt security platform to protect firm AI/LLM-based applications from adversarial attacks and prompt injections.
Building and automating a security testing framework to validate protection mechanisms for various LLM use cases.
Owning solutions that are expected to operate and perform at scale across the organisation.
Collaboration with multiple stakeholders and partners across Engineering and Operations as well as partner teams within the wider Citi organisation, across different time zones.

Job Skills/ Qualifications:

Highly motivated self-starter with excellent interpersonal and problem-solving skills
Bachelor’s degree or equivalent work experience
Good oral and written communication skills
Significant relevant industry work experience
Experience of the full lifecycle of design, implementation and running of enterprise software solutions involving cross functional team collaboration
Expertise in a major programming language such as Python and/or Go, and associated tooling (Git, Maven, IDEs, Jenkins, Bitbucket etc)
Expertise in designing and implementing secure APIs and libraries.
Experience in Generative AI, LLM frameworks, LLM prompt engineering and/or adversarial testing is a bonus.
Experience with Cyber engineering and Operations, which could include DevSecOps or MLSecOps.
Experience contributing to the architecture and design (architecture, design patterns, reliability, scaling) of new and current systems
Experience in containerized deployment (Kubernetes, OpenShift etc).
Expertise with DevOps, CI/CD and agile methodology

What we can offer you:

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

Job Family Group:
Technology ------------------------------------------------------
Job Family:
Systems & Engineering ------------------------------------------------------
Time Type:

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

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

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.

Market Regulation Analyst - Intercontinental Exchange

Intercontinental Exchange

Job Purpose

The Market Regulation Analyst supports the ICE Futures Europe (IFEU) Market Regulation department in meeting its regulatory obligations by leveraging advanced data skills to enhance market surveillance and compliance controls. This data-driven role requires strong programming abilities in SQL and Python, as well as excellent analytical and investigative skills to interpret large, complex datasets and develop innovative solutions. The analyst must be proactive, collaborative, and able to communicate clearly, with a keen interest in finance and research, and the ability to produce concise business requirement documents.

This position would be suited to a recent graduate.

Responsibilities

Propose and implement improvements to market surveillance and market regulation processes to enhance regulatory effectiveness.
Test, validate, and continuously improve controls to ensure their effectiveness and proactively enhance detection capabilities.
Draft, review, and maintain clear business requirements for data-driven solutions, ensuring documentation remains current and relevant.
Analyse large-scale trading datasets to support investigations and provide robust evidence.
Develop and apply advanced analytic tools and programming languages (Python, SQL, Excel, VBA, or R) to identify and investigate potential irregular trading activities.
Prepare and deliver management information and analytical reports for colleagues and senior leadership.
Deliver responsive and professional support to Members and market participants, addressing inquiries via telephone and email.
Contribute to ad-hoc projects as required, demonstrating flexibility and initiative.
Support the review and publication of open interest and position reporting.

Knowledge and Experience

Degree or equivalent qualification in Computer Science, Mathematics, Economics, Statistics, or a related discipline.
Good understanding of financial derivative markets.
Demonstrated proficiency in programming languages such as Python, SQL, or R.
Exceptional analytical abilities and attention to detail.
Effective written and verbal communication skills, with the ability to interact confidently at all organisational levels, including external stakeholders.
Proven capability to identify and resolve complex issues efficiently.
Strong organisational skills, with the capacity to manage multiple priorities under pressure and meet deadlines.

Lead GenAI Lead Engineer, Innovation Labs - SVP - Citi

Job Overview
The Role:
We’re on the hunt for a highly skilled and experienced senior engineer to lead the design and development of the various AI services as part of the Citi Innovation Labs. The ideal candidate has excellent track record leading teams of engineers and/or data-scientists and building high-scale engineering products, specifically AI solutions. In this role, you’ll be a key player in driving innovative AI projects throughout the bank.

Team:
Citi Innovation Labs is a global network of innovation centers focused on delivering cutting edge solutions to all of Citi’s lines of business.
Our Mission is to create a competitive advantage for our clients, manifested as change in the way they operate, by providing innovative technological solutions with strong client engagement, from idea to production, and by leveraging the entrepreneurial spirit and technological excellence fostered in the Innovation Labs.

Our Labs Network is a global organization that spans across New York, London, Tel Aviv, and various other locations globally. We focus on delivering innovative products using cutting-edge technologies in highly complex architectures and with the highest delivery standards. The Innovation Labs team perform research and implementation in many advanced domains spanning across AI, Machine learning, NLP, Analytics, and many more.

Responsibilities:

Lead development of highly complex AI solutions, infrastructure, and architecture topics
Lead a team of engineers and data-scientists
Actively contribute to software development, both as a coder and as a reviewer
Manage executive stakeholder audience in technology by acting as a partner, trusted advisor and operating through influence
Work with internal and external partners to design, validate, and deliver solutions with a commercial benefit for Citi
Manage multiple concurrent initiatives and projects of varying sizes & complexity
Engage with data-science, technical and business stakeholders to define and design overall architecture for key use-cases across our lines of business
Work with external vendors and start-ups around joint initiatives and around exploration of new directions
Partner with Citi’s Risk and Governance partners to ensure best practice is followed from the perspectives of good governance, risk management, standardization, and tooling.

Qualifications:

Significant experience in the software industry
Proven experience in senior positions as principal engineer or architect
Experience with cloud architectures, and specific experience with public cloud offerings
Proficiency in programming languages such as Python.
Experience as a people manager
Highly experienced in delivering complex solutions to production, preferably in Python and AI/ML ecosystem
Great passion and proven hands-on experience integrating with AI/ML technologies
Strong and diverse technical background. Ability to quickly learn and understand new technologies, influence highly skilled engineering teams and overall have a personal impact on technology decisions and vision.
Excellent communication skills
Leadership and organizational abilities
Excellent analytical and problem-solving skills
Strategic thinker
Experience in the financial industry - major advantage

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

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 Engineering Lead, Index Distribution - London Stock Exchange Group

London Stock Exchange Group

FTSE Russell | LSEG Technology

FTSE Russell is a leading global provider of financial services, specializing in the creation and management of indexes, data, and analytic solutions. A subsidiary of the London Stock Exchange Group (LSEG), FTSE Russell supports investors worldwide in making informed decisions across asset classes, investment strategies, and market segments. Its products are trusted by institutional and retail investors, asset managers, and pension funds to benchmark performance, build investment portfolios, and manage risk. With a reputation for innovation, transparency, and robust governance, FTSE Russell plays a critical role in shaping global financial markets.

Job Summary:

FTSE Russell is seeking a senior software engineer to be part a dynamic team of software engineers building all distribution capabilities of our index products to the financial community worldwide. The distribution platform encompasses the set of systems delivering our indexes to the clients subscribing to these indexes. This includes systems to provide analytics on our products, the build of our product data stores, the delivery our products across a variety of technology channels (files, APIs …), the build of permissioning systems, and tracking who is consuming which product through which delivery channel.

Building a state-of-the-art distribution system is our core objective. Ensuring that our clients receive consistent products, reliably with high content and format quality is central to the client experience, and therefore to the value of our products.

The ideal candidate combines a strong understanding of market data, expertise in building modern data distribution technologies, including cloud native distribution channels, and strong analytical skills in various languages, the main ones involved being typescript, python and javascript (with Angular).

As an Index Distribution Manager Software Engineering, you are responsible for building a modern cloud native (on AWS) distribution infrastructure, with high resilience. You will mentor junior developers, to provide scalable solutions to deliver high quality index products to our clients. You will ensure the index distribution initiatives are being delivered on time and on budget, meeting function and non-functional requirements.

You will own the software development lifecycle, delivering high-quality software, and fostering a culture of quality, innovation and continuous improvement.

What You’ll Do

As a hands-on senior software engineer, you’ll build with purpose - solving real-world problems with measurable impact.

Design, build, and scale next-gen index distribution platforms with the objective of providing a delightful index consumption experience.
Develop efficient, and secured cloud-native architectures.
Work with relational databases (PostgresSQL), possibly NoSQL and object stores, and modern Lakehouse architectures (Iceberg)
Design scalable data models, jointly with data governance
Contribute to code reviews, mentor peers and more junior members of the team, and help shape a world-class engineering culture.
Partner with global teams to define new solutions across cloud, data, and analytics.
Work with upstream and downstream development teams to implement functionality.
Be an example for other by embedding a test culture in the software development process with the design of automated and integrated test cases.
Enjoy. Enjoy learning, experimenting, and push for innovative designs to help us building better product experiences for our clients.

Tech Stack You’ll Work On

Backend: Python, Java, TypeScript, SQL, APIs, microservices, containers
Frontend: Angular, JavaScript, HTML5/CSS
Cloud: AWS (EC2, Lambda, Glue, EKS, SQS, SNS and any other as required)
Databases: SQL Server, PostgreSQL, DynamoDB, possibly NoSQL
CI/CD: GitLab, Jenkins, Terraform

Experience we value:

Financial and Capital markets
Index and Benchmarking experience is a nice to have but no a strict requirement
Pragmatic application of technologies optimized for data distribution use cases
Be able to be product centric and client led
Solid experience in UI development for business-critical applications in Angular (8 and above), Java Script, HTML/CSS, Java, C#
Exposure to AWS services
Solid stakeholder management

Personal traits you should have:

Excellent attention to detail and an ability to think laterally to solve business problems.
Ability to hit the ground running, learn quickly and work against tight deadlines.
Creative, results driven, self-motivated, and solutions oriented.
Demonstrates a can-do attitude, exhibits self-confidence and has excellent interpersonal and time management skills
Experience in working with and influencing key decision makers
Able to establish credibility quickly.
Excellent stakeholder management skills.

How We Work: Engineering at FTSE Russell

Our engineers operate with a clear “why” - staying aligned to strategic outcomes while putting the customer at the center of every decision. You’ll thrive here if you:

Build with Purpose: You understand the why behind every line of code and optimize for meaningful outcomes.
Customer Driven: You translate complex requirements into elegant solutions that delight users.
Technically Courageous: You step out of your comfort zone, challenge the status quo, and innovate with confidence.
Learn and be curious: You seek feedback, explore new technologies, and stay curious.
Grow and Uplift Others: You coach, mentor, and celebrate team wins.
Act as Owners: You act like an owner, making thoughtful trade-offs and delivering long-term value.
Lead with data: You trust the numbers, validate assumptions, and learn from failures.
Dive Deep: You stay close to the details and act decisively when something’s off.
Build responsibly, deliver incrementally: You embrace agile principles, delivering incrementally and improving through feedback.
Collaborate to achieve: You believe the best solutions come from diverse, cross-functional teamwork.

Why Join Us?

Global Brand, Local Impact: Contribute to FTSE Russell’s global index systems from Bangalore.

Engineering First Culture: Work in an agile, collaborative, tech-driven environment.

Cutting-Edge Projects: Engage with modern architectures and tools on mission-critical systems.

Career Growth: Benefit from global mentorship, upskilling programs, and internal mobility.

Flexibility: Enjoy a hybrid work model with good work-life balance.

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.

Automation Engineer - Python, API integration, Power Automate Location: Remote based. Salary: Paying up to 80k, depending on experience A highly respected Managed Services Provider based in London, is seeking a talented Automation Engineer to drive integration and automation initiatives across their service tooling environment. This is an excellent opportunity for a senior engineer with strong scripting and API skills who wants to design intelligent solutions, streamline operations, and help create reusable automation packages that can later be rolled out to customers. Role Responsibilities Developing integrations across the client's key platforms, including Halo, RMM tools, and financial systems-leveraging direct APIs, without middleware. Designing and implementing automation workflows using Python, REST API integrations, Microsoft Graph API, Power Automate, JavaScript, and PowerShell. Contributing to a backlog of automation and efficiency projects, selecting the right tools and approaches to deliver scalable outcomes. Building solutions that can be refined and packaged for customer deployment as part of the MSP's expanding service offering. Working on API‑driven solutions and integrations with emerging technologies, including links into OpenAI and other modern automation capabilities. Collaborating with internal teams to understand process bottlenecks and opportunities for intelligent automation. Candidate Profile Experience in automation engineering or a similar role within an MSP, IT services, or fast‑paced technical environment. Strong practical understanding of API integrations and how to connect multiple systems in a secure, stable way. Proficiency with Python and experience interacting with RESTful services. Working knowledge of Microsoft Graph API, Power Automate, JavaScript and/or PowerShell. Comfortable owning small‑to‑medium automation projects from concept to delivery. Curious, solutions‑driven, and able to translate technical ideas into practical operational improvements. What's on Offer Opportunity to work on a diverse pipeline of real‑world automation projects. Exposure to next‑generation tooling and AI‑driven integrations. Clear progression within a forward‑thinking MSP with a strong engineering culture. A collaborative environment where ideas are encouraged and technical creativity is supported. Remote based. Paying between £(phone number removed), depending on experience. Must be eligible to work in the UK

Data Engineer (Banking Experience)

Chapman Tate Associates

Job Title: Contract Data Engineer (Banking Experience Required) Location: London (Hybrid) Day Rate: £550–£600 per day (Outside IR35 – subject to assessment) Contract Length: 6 months initial (extensions likely) Overview Chapman Tate are looking for an experienced Contract Data Engineer with a strong background in banking or financial services to support a range of high-priority data initiatives. You will play a key role in delivering scalable data solutions, enabling regulatory reporting, and improving data architecture across the organisation. Key Responsibilities \* Design, build, and optimise scalable data pipelines and ETL/ELT processes \* Integrate and transform large volumes of financial data from multiple sources \* Work closely with stakeholders across technology, risk, and business teams \* Ensure high standards of data quality, governance, and compliance \* Contribute to data platform enhancements and cloud migration projects \* Troubleshoot and resolve data-related issues in a fast-paced environment Required Skills & Experience \* Proven track record as a Data Engineer within banking or financial services (essential) \* Strong SQL and Python (or equivalent) development skills \* Hands-on experience with modern data platforms (e.g. Snowflake, Databricks, Redshift, BigQuery) \* Cloud experience (AWS, Azure, or GCP) \* Solid understanding of data modelling, warehousing, and pipeline design \* Experience supporting regulatory or risk-related data workflows Desirable Experience \* Exposure to real-time/streaming technologies (e.g. Kafka) \* Experience in large-scale data transformation or migration programmes \* Familiarity with CI/CD, DataOps, or DevOps practices If you’re a contract Data Engineer with banking experience available in the next two weeks, please apply with your latest CV

Head of Cloud Platforms

James Andrew Recruitment Solutions (JAR Solutions)

Salary: up to £95,000Contract: Permanent

We are working on behalf of our client to recruit a Head of Cloud Platforms. This is a senior leadership role sitting within the IT department, reporting to the Director of Infrastructure & Operations.

The Role

You will lead the Cloud Platform and Integration teams, taking ownership of the strategic direction and day-to-day management of cloud platforms (AWS & Azure), DevOps tooling, and systems integration (middleware). You will define the long-term technical roadmap, oversee CI/CD pipelines and infrastructure-as-code (IaC), and ensure platforms are secure, reliable, and cost-effective.Working closely with software development, infrastructure, cyber security, and business teams, you will align platform engineering with the wider digital strategy, drive automation, and act as a technical leader and mentor across their team.

Key Responsibilities:

Lead and manage the Cloud Platform and Integration teams, ensuring effective collaboration and delivery
Define and implement cloud architecture, automation strategies, and CI/CD pipelines across AWS, Azure, and M365
Drive adoption of IaC and automated deployment processes
Oversee systems integration architecture, ensuring compatibility and performance across cloud, on-premises, and hybrid environments
Lead incident response, disaster recovery planning, and BCP/DR testing
Monitor platform performance and establish KPIs and SLAs for availability, security, and uptime
Lead security audits, risk assessments, and vulnerability management, working alongside Cyber Security teams
Mentor senior technical leads and support their professional development
Engage with stakeholders to translate business requirements into technical solutions
Evaluate new tools and technologies to improve infrastructure efficiency and scalability

Skills and Experience Required:

Deep knowledge of AWS (EC2, VPC, RDS, S3, CloudFront, Route 53, IAM, CloudWatch, EKS) and Microsoft Azure
Experience managing and delivering within multi-cloud environments
Hands-on experience with CI/CD pipelines and GitOps practices (e.g. Jenkins, Bitbucket, Terraform)
Experience deploying and maintaining Linux systems (Ubuntu, CentOS, RHEL, Amazon Linux)
Knowledge of containerisation technologies including Docker and Kubernetes
Experience with middleware technologies, including AWS SQS/SNS and API Gateway
Scripting skills in Bash and/or Python
Proven experience managing technical teams and providing clear direction
Strong communication skills, with the ability to present technical information to varied audiences

James Andrews is acting as an employment agency and business in relation to this role.At James Andrews Recruitment Solutions we try to respond to all applications personally, however, due to the high volume of applications this is not always possible. If you have not heard back from us within 72 hours, please assume that your application has been unsuccessful on this occasion.Don’t forget our recommendation scheme: Recommend a friend or colleague to us and receive up to £100 each once they have completed 20 days in a role via James Andrews! Terms and conditions apply, contact us for details.

Tech Lead – Python / Financial Modelling / AI - Pensions

Tech Lead – Python / Financial Modelling / AI - Pensions £650 – £750 per day Outside IR35 6 Month Contract Remote (Occasional London Travel) Overview I’m currently working with a leading financial services technology consultancy that is looking to bring in an experienced Tech Lead to support the delivery of modern software solutions for a major pensions client. This role sits at the intersection of financial modelling and modern engineering, supporting the development of platforms used for forward-looking financial analysis, including discounted cashflow projections and Monte Carlo simulations. This is a hands-on leadership role, splitting your time between full-stack engineering and leading a team of senior developers. You’ll also play a key role in shaping AI-assisted and agentic development workflows, helping embed these approaches into day-to-day engineering practices. The Role You will lead a team of four experienced engineers while remaining actively involved in the development process, with a strong emphasis on Python-led development within a modern cloud environment. Alongside technical leadership, you will coordinate delivery, run Agile ceremonies, and act as a key technical contact for stakeholders and clients. The role requires someone who leads by influence, communicates confidently with clients, and brings practical experience implementing AI-assisted and agentic engineering workflows within real delivery environments. Key Responsibilities Leading a team of four senior engineers within an Agile delivery environment Remaining hands-on with Python-led full-stack development, alongside TypeScript, React and Azure Contributing to platforms supporting financial modelling and forward-looking analytics including discounted cashflow projections and Monte Carlo simulations Championing AI-assisted and agentic engineering workflows, embedding these into development practices Running Agile ceremonies including stand-ups, sprint planning and retrospectives Managing day-to-day delivery and proactively removing blockers Acting as a key technical contact for stakeholders and clients Supporting solution design and maintaining strong engineering standards Experience Required Proven experience operating as a Tech Lead or Lead Engineer in modern engineering teams Strong Python development experience within full-stack environments Experience with TypeScript, React and Azure-based architectures Experience working on financial modelling systems, ideally involving forward-looking modelling such as discounted cashflow projections or Monte Carlo simulations Demonstrable experience implementing AI-assisted or agentic engineering approaches in practice Experience leading engineering teams within Agile delivery frameworks Strong communication skills and the ability to engage confidently with clients and stakeholders A solutions-oriented, detail-focused mindset with a strong delivery drive and principles-based approach to engineering

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Frequently asked questions

London offers a wide variety of Python roles including web development, data science, machine learning engineering, backend development, automation, and DevOps positions.

Many Python jobs in London require experience with popular frameworks such as Django, Flask, or FastAPI, depending on the role. It's best to review the specific job descriptions to understand required skills.

Yes, there are entry-level Python jobs and internships available in London. These roles often look for foundational knowledge of Python and a willingness to learn and grow.

Salaries vary based on experience and role complexity, but typically range from £40,000 to £90,000 annually. Senior or specialized positions can offer higher compensation.

Many companies in London now offer flexible or fully remote working arrangements for Python developers. Job listings usually specify if remote work is an option.

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