Location: London - Hybrid

This is an opportunity to join one of the world’s premier investment firms.

The firm deploys systematic, computer-driven trading strategies across multiple liquid asset classes, including equities, futures and foreign exchange. You will be building components for both live trading and simulations as part of a trading pod.

Salary: Competitive / Market-Leading

Requirements:

• Masters or PhD in Computer Science or other quantitative discipline
• 5+ years of experience designing and developing research and live trading infrastructure at a financial institution, including experience in futures and FX
• Experience handling connections to execution/order management systems
• Strong programming skills in Python
• Experience with SQL, database design, and large datasets
• Willing to take ownership of his/her work, working both independently and within a small team
• Commitment to the highest ethical standards

Benefits:

• Competitive base salary and annual discretionary bonus
• 25 days holiday + statutory holidays + paid sick days
• Private medical and dental

Tier-2 visa sponsorship is available.

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 think you are a strong match for this role, please don’t hesitate to get in touch!

Kishan Patel
kishan.patel@oxfordknight.co.uk
+44 (0)20 3137 9572
linkedin.com/in/kishan-patel-4029aa8b

Salary: £400K TC

Location: London

Client & Role Overview

My client is a top-tier global hedge fund known for investing heavily in world-class technology and research to drive trading performance. They are looking to hire a Senior C++ Low-Latency Quant Developer to join a core front-office team building the trading infrastructure that directly supports execution and central trading.

This role sits at the heart of the business. You’ll design and build ultra-low-latency systems that power execution algorithms, strategy containers and real-time trading across global markets. Working directly with traders and quants, you’ll help unlock new trading opportunities by continuously improving speed, stability and performance.

If you’re excited by writing highly performant C++ and working as close to the market as possible, this is an exceptional opportunity to have real impact.

Skills & Experience Required

• 5+ years of experience building high-performance C++ systems in front-office environments
• Strong modern C++ experience (C++17 / C++20)
• Deep understanding of low-latency, real-time system design
• Excellent knowledge of Linux internals and networking
• Experience building trading systems across equities and/or futures

Why Join?

• Work directly alongside high-performing trading and quant teams
• Core ownership of mission-critical trading infrastructure
• Exceptional compensation and performance bonus
• Fast-moving, intellectually rigorous environment

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 think you are a strong candidate for the role and would like further info, please contact:

Gracie Shallcross
gracie.shallcross@oxfordknight.co.uk
linkedin.com/in/gracie-shallcross-2450061b6

Job Title: Full Stack Software Engineer (Robotic Systems) Salary Expectation: £80,000 - £90,000 (Depending on Experience) Location: UK (Remote) Note: Only candidates with permanent, unrestricted UK working rights will be considered, as visa sponsorship is not offered for this position. Overview: Zenovo is partnering with an innovative company developing advanced autonomous robotic systems to find a Full-Stack Software Engineer. This is a fully remote opportunity within the UK. You will play a key role in building the software that powers intelligent machines and their user experiences, working across web, mobile, HMIs, and internal tools that support system control and operations. This position suits an engineer who enjoys working across the full stack in a fast-paced environment and has a strong interest in autonomy, robotics, and AI. Job Responsibilities: Design and build responsive web and mobile experiences for end users. Develop intuitive interfaces for operators and remote supervision, integrating teleoperation, navigation data, and safety features. Create and maintain dashboards and front-end systems that support operational workflows and data-driven decision-making. Develop and manage scalable backend services, including APIs, databases, and real-time data pipelines. Collaborate with AI and autonomy teams to embed advanced models into user-facing products and tools. Work closely with cross-functional teams and take ownership of features from concept through to deployment. Required Skills & Experience: 5+ Years Full-Stack experience  across modern front-end frameworks (React, Vue, Svelte, etc.) and backend technologies (Node.js, Python/FastAPI, Go, microservices, SQL/NoSQL). A strong portfolio of shipped products demonstrating high-quality UI/UX, performance, and maintainable code (GitHub or demos encouraged). Experience with AI-assisted development tools such as Claude Code, OpenAI Codex, CodeRabbit, Aikido, v0, or similar, along with familiarity using AI-enhanced IDEs (e.g. VS Code with Copilot, Cursor, Antigravity) and an openness to adopting new productivity tools. Experience designing and consuming REST/GraphQL APIs, working with real-time data systems (WebSockets, Kafka, MQTT), and deploying applications to cloud infrastructure. Ability to write clean, testable, and maintainable code within a collaborative environment, with a solid understanding of CI/CD and DevOps practices. Strong problem-solving skills, self-direction, and enthusiasm for learning about robotics, autonomous systems, and heavy equipment domains. To find out more, please apply with your latest CV

Contract Murex Back Office Business Analyst Location: London, UK – Hybrid working 3 days in their London office Duration: 6 months rolling (Contract) Rate: £700-800 per day (Inside IR35 / Umbrella Company Rate) We are seeking an experienced Murex Back Office Business Analyst with strong configuration and technical expertise to join a leading financial institution on a contract basis. This role focuses on Murex system configuration , integration , and back-office process optimization , supporting trade lifecycle, settlement, and regulatory compliance. Key Responsibilities 1. Configure and customize Murex back-office modules for trade processing, settlement, and reporting. 2. Enhance Murex workflows and functionalities, including Pre-Trade Workflow , Cash Settlements , SSI Management , and Confirmation Instruction Setup . 3. Develop and maintain MxML workflows , data mapping, and scripting for automation and integration. 4. Collaborate with stakeholders to gather requirements and translate them into functional and technical specifications. 5. Troubleshoot and resolve technical issues related to Murex configurations and integrations. 6. Support testing phases (system, integration, UAT) and ensure compliance with regulatory standards. Required Skills 1. Deep understanding of Murex architecture and back-office modules . 2. Extensive experience in configuring and customizing Murex for back-office functionalities. 3. Proficiency in MxML workflows , scripting, and data mapping. 4. Experience with CLS (Continuous Linked Settlement) interface. 5. Strong programming skills in Java and Python . 6. Database management and SQL expertise for data extraction and manipulation. 7. Familiarity with API development and system integration. 8. Hands-on experience in Unix environments , including shell scripting and system administration. Desired Skills 1. Experience with Azure cloud services (deployment, monitoring, integration). 2. Proficiency in Azure DevOps for CI/CD pipeline setup and automation. Why Apply? 1. Work on high-impact projects within a global financial institution. 2. Opportunity to leverage cutting-edge technology and optimize back-office operations. 3. Competitive day rates and flexible contract terms.

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.

Description

We are looking to hire a Java Back-End Developer to join our Short-Term Desk Technology team. This role focuses on building the next generation of trading and cash management systems used across our Short Term, Cash, and Collateral desks.

You will work on modernizing existing platforms, developing new cloud native services, and contributing to our broader migration toward AWS. The role offers close collaboration with front office stakeholders and ownership across the full software lifecycle.

Core Engineering

• Design, build, and maintain high quality, scalable microservices using Java 21 and modern frameworks.
• Develop new functionality while evolving existing components with clean, maintainable, well tested code.
• Apply TDD, good CI/CD practices, and strong engineering standards.

Cloud & Platform Modernization

• Contribute to our cloud migration initiatives by building containerized, cloud ready services.
• Work with AWS services (e.g., Lambda, EKS, RDS, S3, MSK) to help move workloads off legacy environments.
• Participate in improving observability through metrics, tracing, and logging.

AI & Automation

• Use applied AI tooling (e.g., GitHub Copilot, MCP servers, and LLMs) to accelerate development, improve testing quality, and streamline operational automation.
• Identify and implement opportunities for intelligent automation within systems (e.g., anomaly detection, documentation generation, automated runbooks).

Business Collaboration

• Work directly with portfolio managers, traders, and operations teams to deliver high impact solutions.
• Understand front office workflows and translate them into robust, performant technical designs

Required Qualifications

• 3- 5 years of strong experience with Java (preferably Java 17+; ideally Java 21) and back-end development
• Familiarity with microservices, REST APIs, and event driven architectures.
• Some exposure to AWS or cloud native engineering concepts (containers, CI/CD, infrastructure as code).
• Interest or experience in using AI tools to boost productivity (code generation, test creation, documentation, etc.).
• A proactive mindset, eagerness to learn, and ability to work in a fast-moving front office environment.
• Strong communication skills and desire to partner closely with business users.

Why Join us?

• Work on high visibility trading systems critical to PIMCO’s Short Term Desk.
• Gain hands on experience with modern Java, cloud engineering, and applied AI.
• Collaborate with a talented global engineering team and front office partners.
• Opportunity to take real ownership - from design and implementation through to production.

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.

Exciting opportunity at one of the fastest growing financial services firms around the world. They offer prime brokerage, clearing and financing across traditional and digital assets, and are now looking to hire world-class software engineers to help build on their success.

Responsibilities

• Design, develop and own a generalized system for generating business-critical reports from backend data platform
• High-impact role: reporting systems handle outputs for all products globally, and are necessary to launch and grow all business products
• Take ownership of correctness, reliability, and performance of reporting
• Develop a deep understanding of the business context in which the team operates
• Drive communication between engineers and stakeholders across the business

Skills & Experience Required

• Hands-on architecture experience building critical financial/regulatory/customer reporting or data transformation systems
• Direct experience building alerting, observability and monitoring into production systems, using tools such as Datadog, Grafana, Prometheus
• Experience designing tight SLO (>0.99) workflows on scheduling systems at scale (e.g. AirFlow)
• Expert-level programmer in Python, Pandas and SQL (Snowflake and Postgres)
• Superb code-review skills and strong instincts on how to write robust, maintainable, and generalizable code

Nice to have, but not required

• Parallel computing patterns (multiprocessing, threading) experience and technologies (PySpark, Dask)
• Experience with ledger, trading, risk management, pricing, or other large-scale transaction/event-processing systems

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 feel you are suitable for this role, drop me an email or give me a call!

Jack Peck
[e] jack.peck@oxfordknight.co.uk
[t] +44 20 3745 6537
linkedin.com/in/jack-peck-448a70131

About the role

Join the Core Development team in a senior engineering role focused primarily on trading GUI development. You’ll work in a small, high-impact team with broad exposure across the business, partnering closely with traders on the tools they use day to day while also contributing to wider core development projects.

What You’ll Do

• Build and enhance the trading GUI used by traders in their day-to-day activities
• Work closely with traders to improve usability, workflows, and tooling
• Capture and expose trading activity data from a large number of exchanges to internal users and systems
• Contribute to systems for real-time positions, alerts, and reporting through reconciliation of trades and transfers

Hard Requirements

• Advanced knowledge of Python 3
• Strong experience building desktop GUI applications
• Familiarity with the Qt framework
• Experience working with SQL databases

Skills (in order of priority)

• Python 3
• Desktop GUI development
• Qt
• SQL databases
• Interest in trading / crypto / financial systems

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 think you’re a good match for the role and would like further info, please contact:

Ali Wilson
ali.wilson@oxfordknight.co.uk
(+44) 07412908641
linkedin.com/in/alexander-wilson-050

Salary: up to £200k base + bonus

Summary

Leading global HFT firm is looking for a pragmatic C/C++ Engineer to join the Core Development team. Despite serving as the hub for managing the substantial operations across the UK, Europe and the Middle East, the London office retains a lively, positive environment of a start-up with the stability of a longer-established player.

Core Dev is a global group of technologists who architect, build and maintain the algorithmic trading platform. This is a fast-paced area, where taking ideas through to deployment must be fast and accurate. As a high performance software engineer, you’ll work with technologists & traders to build the next generation of software solutions in areas such as fast networking, high performance computing, and real-time acceleration.

Technology is prized by the traders as crucial to their continued success. This role would suit someone who has a combination of low level software engineer skills paired with computer architecture understanding, and exposure to low level network architecture. This will enable you to fully contribute to co-designing hybrid hardware/software applications.

Requirements

• Strong C/C++ design and programming skills with good API design
• Broad knowledge of algorithms and basic understanding of statistics and algebra
• Experience with Python, Matlab, or R for data analytics; Matplotlib, numpy are also preferred
• Experience developing low-level and/or embedded software applications
• Proven individual contributor in a dynamic environment
• Degree in Electrical/Computer Engineering, Computer Science (or related)

NB: Please don’t apply if you’re a fresh graduate.

Benefits

• Competitive base salary & bonus
• Enormous opportunity to grow, learn and have a significant business impact
• Contributions are rewarded; career progression supported
• Substantial benefits package, including private medical, paid parental leave, group life assurance & parking/cycle schemes

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 this sounds like you or you would like to know more, please get in touch:

Andy Stirling-Martin
andy@oxfordknight.co.uk
020 3137 9579
linkedin.com/in/andrew-stirling-martin-7664a946

Exciting opportunity at one of the fastest growing financial services firms around the world. They offer prime brokerage, clearing and financing across traditional and digital assets, and are now looking to hire world-class software engineers to help build on their success.

Responsibilities

• Lead the integration of new exchanges into the trading platform, focusing on connectivity & functionality
• Collaborate with stakeholders to implement and maintain API connections
• Build custom solutions & tools to automate exchange integration processes
• Test and validate exchange integrations, including order execution, order book management, and trade settlement
• Monitor exchange API performance and reliability, identify and implement solutions to optimize trading efficiency
• Work closely with colleagues on integration projects (fellow software developers, product managers, compliance officers)

Skills & Experience Required

• 7+ years of finance experience
• Proven experience working with exchange APIs and protocols, with a strong understanding of order execution, market data, & trade lifecycle management
• Hands-on experience integrating digital asset exchanges into trading platforms, including API authentication, data normalization, and error handling
• Proficiency in programming languages (e.g. Python, Javascript or Go) for scripting and automation tasks
• Previous experience working in the cryptocurrency or fintech industry is required
• BS degree or above in Computer Science, Engineering, Finance, or related field.

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 feel you are suitable for this role, drop me an email or give me a call!

Jack Peck
[e] jack.peck@oxfordknight.co.uk
[t] +44 20 3745 6537
linkedin.com/in/jack-peck-448a70131

We are hiring a skilled back-end Python Developer to join a high-performing technology team at a top-tier investment bank. You’ll be instrumental in delivering a greenfield system monitoring and performance analysis tool for global trading platforms – a solution that will provide critical insights into system health and behavior across the trading stack. This is a chance to build something from scratch, with full ownership of backend components, data ingestion, and real-time analytics in a Linux-based environment. Key Responsibilities: 1. Design and develop robust backend services and APIs in Python to power a real-time trading system monitoring tool. 2. Build scalable data pipelines to ingest, process, and analyse metrics from various trading infrastructure components. 3. Implement logic to detect anomalies, track performance, and surface actionable insights for developers and traders. 4. Ensure stability, performance, and security of backend systems in a Linux production environment. 5. Collaborate with front-end developers (ReactJS), infrastructure teams, and end users to deliver a complete solution. 6. Contribute to system architecture, technical design, and long-term platform strategy. Requirements: 1. Strong experience with Python for backend/API development. 2. Solid experience developing and deploying applications in Linux environments. 3. Experience with system monitoring, logging, or performance analytics (e.g., Prometheus, Grafana, ELK, custom tooling) is a plus. 4. Knowledge of distributed systems, data processing, or real-time event handling is desirable. 5. Familiarity with trading systems or financial infrastructure is advantageous but not required. 6. Strong communication skills and ability to work in cross-functional teams.

Role Title / Position: Data Engineer III Type : Contract Duration:12 months Location: Bromley or Chester Job Description: Required qualifications : • Knowledge of professional software engineering & best practices for full software development life cycle, including coding standards, software architectures, code reviews, source control management, continuous deployments, testing, and operational excellence • Experience working on and delivering end to end projects independently • Experience building/operating highly available, distributed systems of data extraction, ingestion, and processing of large data sets • Experience with data modeling, warehousing and building ETL pipelines • Experience in at least one modern scripting or programming language, such as Python, Java, Scala, or NodeJS • Experience as a data engineer or related specialty (e.g., software engineer, business intelligence engineer, data scientist) with a track record of manipulating, processing, and extracting value from large datasets • Experience with SQL Preferred qualifications • Experience with AWS technologies like Redshift, S3, AWS Glue, EMR, Kinesis, FireHose, Lambda, and IAM roles and permissions • Experience with non-relational databases / data stores (object storage, document or key-value stores, graph databases, column-family databases) • Experience with Apache Spark / Elastic Map Reduce

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

The Global Rates business is seeking an exceptional AI Engineer to drive the development and implementation of cutting-edge artificial intelligence solutions that will transform our trading, risk management, and client service capabilities. This role sits at the intersection of advanced AI technology and financial markets, offering the opportunity to build innovative solutions that directly impact business outcomes.
As an AI Engineer within Global Rates, you will be responsible for designing, developing, and deploying AI-powered applications and systems that leverage the latest advancements in generative AI, agentic frameworks, and intelligent automation. You will work closely with traders, sales, quants and technology teams to identify opportunities for AI integration and deliver production-grade solutions.

Key Responsibilities
AI Solution Development

• Design, develop, and deploy production-ready AI applications using generative AI techniques, including large language models (LLMs), retrieval-augmented generation (RAG), and agentic frameworks
• Build intelligent automation solutions that enhance trading workflows, risk analysis, and operational efficiency
• Develop agentic coding systems that can autonomously generate, test, and optimize code for financial applications
• Create conversational AI interfaces and intelligent assistants for traders and business users

Technical Architecture & Implementation

• Architect and implement RAG pipelines for knowledge retrieval from structured and unstructured financial data sources
• Design and optimize vector databases and embedding strategies for efficient information retrieval
• Develop prompt engineering frameworks and fine-tuning strategies for domain-specific LLM applications
• Build multi-agent systems that can collaborate to solve complex financial problems
• Implement guardrails, validation frameworks, and monitoring systems for AI applications

Data Engineering & Integration

• Design and build data pipelines to support AI/ML workflows, integrating market data, trade data, and research content
• Develop ETL processes for preparing training data and maintaining knowledge bases
• Create APIs and microservices to integrate AI capabilities into existing trading and risk platforms
• Optimize data storage and retrieval mechanisms for high-performance AI applications

Collaboration & Innovation

• Partner with business stakeholders to identify high-impact use cases for AI implementation
• Collaborate with quantitative researchers to integrate AI techniques into pricing and risk models
• Work with compliance and risk teams to ensure AI solutions meet regulatory and governance requirements
• Stay current with emerging AI technologies and evaluate their applicability to Global Rates business needs
• Contribute to the firm’s AI/ML community of practice and knowledge sharing initiatives

Required Qualifications
Education

• Bachelor’s or Master’s degree in Computer Science, Data Science, Machine Learning, Artificial Intelligence, or related quantitative field
• Strong academic foundation in algorithms, data structures, and software engineering principles

Professional Experience

• Professional experience in AI/ML engineering, software development, or data science roles
• Demonstrated experience building and deploying production AI applications
• Proven track record of delivering end-to-end technical solutions

Technical Skills - Core Requirements
Generative AI & Machine Learning:

• Hands-on experience with generative AI techniques and large language models (GPT, Claude, Llama, etc.)
• Practical experience implementing Retrieval-Augmented Generation (RAG) systems
• Experience with agentic frameworks and autonomous coding systems
• Knowledge of statistics and machine learning techniques

Programming & Development:

• Strong proficiency in Python
• Strong SQL skills
• Front end development

What Citi can offer you
By joining Citi London, you will not only be part of a business casual workplace and 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.
If you are actively working with clients, have a passion for relationships and want to be part of a successful global franchise - then apply today.
This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.

Job Family Group:
Institutional Trading ------------------------------------------------------
Job Family:
Trading ------------------------------------------------------
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.

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
Python Developer - FX Options Pricing and Market Data Distribution
The FX Options Pricing and Market Data distribution team is going through significant reengineering and modernisation. We are looking for an experienced Python developer and technologist to take a hands-on role in building out data analytics capabilities and developing frameworks that enable data scientists to leverage market data.
Responsibilities:

• Contribute to the design and development of the electronic FX Options Data Platform
• Building out reliable and fast data pipelines for quantitative analysis and trading.
• Design, build and support our data analytic infrastructure
• Collaborate with a global team of developers, quants and traders to translate business requirements into robust technical solutions
• Drive the design and development of system architecture, work with users of the system, and enhance the quality of deliverables
• Contribute to the continuous improvement of development, deployment and testing processes
• Share your knowledge and mentor other developers, fostering a collaborative and innovative team environment

Required Skills:

• Strong knowledge and experience of Python development.
• Experience implementing front office systems for Quants and Trading.
• Proficiency with Python frameworks such as FastAPI, Flask etc for building scalable applications
• Experience with Python libraries for financial applications (NumPy, Pandas, asyncio)
• Hands-on practical experience delivering system design, application development, testing, and operational stability, particularly in Linux based cloud environments
• Openshift/Kubernetes experience with containerized Python applications
• Caching technologies e.g. Redis, Memcached or others
• Middleware technologies: Kafka, RabbitMQ, Solace, or other message brokers
• Experience with Python package management and dependency management (pip, uv, conda)
• Awareness of industry trends and leveraging new technologies as appropriate
• Proven track record of building new systems, replacing legacy systems and renovating existing systems

Nice to have:

• Java and/or C# development experience
• Experience with quantitative libraries
• Familiarity with CI/CD pipelines for Python applications
• Experience working in finance

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.

Your new company Working for a renowned financial services organisation Your new role We are seeking a Data Engineer to support the replacement of a legacy ETL tool with a modern Apache Spark based data platform. This is a hands‑on engineering role focused on building and supporting Spark jobs, with an emphasis on performance, reliability, and scalability. The role sits within a small Agile delivery team of four engineers (two onshore and two in Shenzhen), working closely with a Senior Data Engineer. You will be responsible for development work, sprint delivery, demos, documentation, and stakeholder engagement. This position suits a mid‑level engineer with strong Spark development experience rather than design, infrastructure, or management responsibilities. What you'll need to succeed Strong hands‑on experience with Apache Spark - Writing and tuning Spark jobs /PySpark development experience. Strong experience working in with containerised environments using Kubernetes. Experience with programming in Python or Scala Exposure to Big Data technologies and distributed data processing Have some working knowledge of Java or Java Spring boot development background Experienced in an Ops way of working, not pure development only - you know how to deploy solutions. Experience with OpenShift would be highly desirable! Experience working in an Agile way of working (Scrum, sprints, demos) Financial services or professional services experience required. What you'll get in return Flexible working options available. What you need to do now If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at (url removed)

Middle/Senior C++ Quant Developer - Market Making (HFT)

We’re partnering with a top‑tier electronic trading firm specialising in high‑frequency market making, currently building ultra‑low latency trading platforms operating across major European and US exchanges from their London office.

As part of continued growth, they’re expanding their market‑making team and are looking to hire a Mid to Senior C++ Quantitative Developers to work on core trading systems spanning pricing, execution, and risk. This is a genuine front‑office engineering role where your code is deployed directly to production and has a clear, measurable impact on live trading performance.

What You’ll Be Doing

• Designing, building, and optimising core components of the trading platform
• Owning performance‑critical C++ systems across pricing, execution, risk, and exchange connectivity
• Profiling and tuning systems across CPU, memory, cache, and network layers
• Working closely with traders and quantitative researchers to translate trading requirements into robust, low‑latency solutions

What They’re Looking For

• 4+ years’ experience in modern, performance‑critical C++ (C++17+)
• Strong foundations in systems programming (hardware, OS, memory, networking)
• Experience building real‑time or distributed systems with a focus on performance optimisation
• Comfortable using modern AI‑assisted development tools
• Experience with exchange protocols (FIX, ITCH/OUCH, PITCH, BOE)
• Background in electronic trading, market making, or quantitative trading

Apply for more info

We are currently recruiting for a Python Developer to join the Fixed Income trading technology team within a leading international investment bank.

This is a core software engineering role focused on building and enhancing production trading systems.

Please note this is not a quant, data engineering or AI/ML role, we are looking for a core Python engineer who enjoys owning components, improving systems, and working closely with the business in a fast-paced trading environment.

You will sit within Front Office Technology supporting Fixed Income trading desks. The team develops and maintains the core platforms that underpin trade capture, execution workflows, pricing distribution, and integration across the trading stack.

You will:

• Take ownership of defined components and services
• Deliver enhancements and new functionalities
• Contribute to design discussions and technical improvements
• Partner directly with traders and senior technologists
• This role would suits someone with solid Python experience who is ready to step up in ownership and influence.

Responsibilities

• Develop production grade object oriented Python applications
• Design scalable, resilient backend services
• Improve system performance and reliability
• Participate in code reviews and engineering standards
• Contribute to testing, CI/CD, and release processes
• Provide 2nd/3rd line support where required

Essential:

• Python development experience within a trading environment
• Strong OO production Python
• Experience building backend or distributed systems
• Solid understanding of threading, concurrency, and performance optimisation
• Business knowledge of at least one: Fixed Income, FX, Rates, Crypto

Please submit your CV immediately to be considered for this role

Exciting opportunity at one of the fastest growing financial services firms around the world. They offer prime brokerage, clearing and financing across traditional and digital assets, and are now looking to hire world-class Python software engineers to help build on their success.

Responsibilities

• Improve core functionality of the systems, ensuring performance and accuracy
• Integrate new reference data source
• Setup ETLs for ingesting and processing data

Skills & Experience Required

• Minimum 5+ years’ quant software development experience, preferably at a top-tier financial services firm
• Ability to write production-grade (robust and maintainable) Python code
• BS degree or above in Computer Science, Mathematics, or related field
• Experience with data pipelines
• Ideally familiar with some streaming technology
• Built large-scale, distributed systems

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 feel you are suitable for this role, drop me an email or give me a call!

Jack Peck
[e] jack.peck@oxfordknight.co.uk
[t] +44 20 3745 6537
linkedin.com/in/jack-peck-448a70131

Salary: £600k-800k TC

Location: London

Client & Role Overview

My client is a globally recognised hedge fund at the forefront of systematic and low-latency trading. They’re looking for a Team Lead Quant Developer to drive the technical direction of a core team building low-latency execution and trading systems.

This role is ideal for someone who wants strategic influence without losing technical depth. You’ll mentor and guide a small team while staying hands-on with system design, optimisation and delivery. Your work will directly impact execution performance across global equities and futures markets.

If you enjoy ownership, technical leadership and solving complex, real-time engineering problems, this is a standout opportunity.

Skills & Experience Required

• 12+ years of software development experience
• 7+ years in front-office trading or financial systems
• Proven technical leadership (team lead or principal engineer)
• Expert C++ skills with strong multithreading and async experience
• Strong background in data structures, algorithms and object-oriented programming
• Linux internals and networking expertise
• Familiarity with Python for quantitative research

Why Join?

• Competitive salary
• Influence both people and architecture
• Work in a genuinely elite, performance-driven environment

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 think you are a strong candidate for the role and would like further info, please contact:

Gracie Shallcross
gracie.shallcross@oxfordknight.co.uk
linkedin.com/in/gracie-shallcross-2450061b6

Fantastic opportunity for talented programmers at one of the world’s top algorithmic trading firms in their London office. They make the world’s markets more financially efficient using smart algorithms. To get the job done, they hire some of the smartest computer scientists in the world to develop both their low latency trading platform and their massive distributed research platform.

The Systems Development team builds and maintains the platform that is shared by all Systems teams to provision, monitor, and manage the server and network infrastructure. As a Systems Software Engineer with a focus on Security, your main focus will be tool development in Python and Go to engineer creative solutions to security challenges. You’ll improve and integrate existing tools and libraries across the platform, as well as design and build new ones to make trading, research, installation, and monitoring systems easier to manage, more secure, and more reliable. Strong Python skills and development experience are required, along with Unix experience and interest in the security space.

This role offers a unique opportunity to make a significant impact on a critical part of existing and growing infrastructure. Your responsibilities will vary, but a typical day in the life might look like:

• Building and maintaining tools and software features to automate systems engineering workflows related to secure machine provisioning, monitoring, metrics collection, maintenance, secrets management, and network configuration
• Troubleshooting software bugs on a fleet of Linux machines, including application, network, operating system, and/or kernel issues
• Writing configuration management code to build, deploy, and maintain new services
• Helping to set the general direction for the Systems Python platform
• Working across the engineering teams to help create solutions to a variety of security challenges

Qualifications

Required:

• Strong Python programming
• Ability to debug and analyze problems quickly
• Ability to learn at a fast pace and apply new skills effectively
• Strong grasp of computer science fundamentals and software design patterns
• Solid understanding of Linux/UNIX operating systems
• Interest in and awareness of security best practices

Preferred:

• Understanding of Debian operating system
• Familiarity with systems configuration management and monitoring technologies
• Familiarity with continuous integration and continuous deployment tools and processes
• Understanding of networking protocols

Profile

• BS and/or MS in computer science or a related field
• 2+ years of relevant experience, including programming in Python
• Experience using automation to solve problems and improve process efficiency
• Acts effectively as a team player, but also works well independently
• Skilled at juggling multiple tasks while maintaining meticulous attention to detail
• Familiarity with open-source software

Culture:

This fund brings a scientific approach to trading financial products. They’ve built one of the world’s most sophisticated computing environments for research and development, and their researchers are at the forefront of innovation in the world of algorithmic trading.

Colleagues come from all sorts of backgrounds: mathematics, computer science, statistics, physics, and engineering. A community of self-starters who are motivated by the excitement of being at the cutting edge of automated trading, and their culture celebrates great ideas whether they come from veterans or new hires.

Seem like something you might be interested in? The goal is to find the best people and bring them together to do great work in a place where everyone is valued. They’re proud of their diverse staff; with offices all over the globe they benefit from varied and unique perspectives.

This is an equal opportunity employer; so whoever you are they’d love to get to know you.

Contact
If this sounds like you, or you’d like more information, please get in touch:

George Hutchinson-Binks
george.hutchinson-binks@oxfordknight.co.uk
(+44) 07885 545220
linkedin.com/in/george-hutchinson-binks-a62a69252

Principal AI / Data Engineer (Contract): Length: 3 months initally (extension is likely) Start Date: ASAP Location: London, Hybrid (1 day per week) Pay Rate / Determination: £(Apply online only) p/d | Outside IR35 About: Opus is supporting a UK-based digital consultancy partnering with organisations to design, build and scale high‑impact digital and AI‑driven products, with a strong people‑first culture. The role: A hands‑on Principal AI / Data Engineer contract to assess, shape and deliver improvements to a live AI platform across two critical workstreams. You'll be responsible for: Assessing the current AI and data platform and define clear, actionable improvements Lead on delivery across two workstreams, aligning product, data and engineering Improving the natural language data exploration platform, focusing on trust and semantic consistency Designing and implementing scalable, multi‑source data pipelines and architecture About you: Strong experience with Python and AWS Deep knowledge of data pipelines, AI/ML systems and modelling Experience with LLM- or NLP‑powered platforms Strong focus on scalable, reliable system designPlease apply now and reach out to Adam at Opus for more information E: (url removed)

Your new company Working for a renowned financial services organisation Your new role We are seeking a Data Engineer to support the replacement of a legacy ETL tool with a modern Apache Spark based data platform. This is a hands‑on engineering role focused on building and supporting Spark jobs, with an emphasis on performance, reliability, and scalability. The role is focused on building nonperformance Apache Spark jobs, with a strong emphasis on performance optimisation. It is primarily Java‑based, with Python strongly encouraged; experience across Java, Python, and Scala is ideal, with Java and Python being the preferred combination. The role sits within a small Agile delivery team of four engineers (two onshore and two in Shenzhen), working closely with a Senior Data Engineer. You will be responsible for development work, sprint delivery, demos, documentation, and stakeholder engagement. This position suits a mid‑level engineer with strong Spark development experience rather than design, infrastructure, or management responsibilities. What you'll need to succeed Strong hands‑on experience with Apache Spark - Writing and tuning Spark jobs /PySpark development experience Strong Java or Java Spring boot development background Experience with programming in Python or Scala Exposure to Big Data technologies and distributed data processing Working with containerised environments using Kubernetes/ Airflow. Agile ways of working (Scrum, sprints, demos) Comfortable working in a distributed team Financial services or professional services experience required. What you'll get in return Flexible working options available. What you need to do now If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at (url removed)