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    Lead Developer – Real Time Investment Data Systems

    Overview hackajob is collaborating with Vanguard to connect them with exceptional professionals for this role. The Role We are seeking a Lead Developer to work on the design and delivery of real‑time and time‑series data platforms within our investment management ...

    Software Developer Enterprise Technology [Node JS / Typescript]

    About Marex Group plc (NASDAQ: MRX) is a diversified global financial services platform providing essential liquidity, market access and infrastructure services to clients across energy, commodities and financial markets. The group provides comprehensive breadth and depth of coverage across four core servi ...

    Backend Java Developer Public Sector | Flexible Work

    IBM is seeking a Backend Java Developer in the Greater London area to design and deliver high-quality applications using Java/JEE and modern web technologies. You will develop secure, reliable backend solutions, collaborate with technical teams, and contribute to DevOps practices. The role offers benefits such a ...

    Part Time Software Developer Community Current (Remote)

    Repowering London is looking for an experienced Software Developer to join the Community current development team on the Elysia solar billing operations platform. The role involves collaboration with another remote developer, focusing on high-quality and security-conscious coding. The position is a fixed term fo ...

    C++ Junior Software Developer, London Heathrow, UK

    Want to launch your career as a C++ Junior Developer? At mthree, we match ambitious graduates with leading global companies across finance, travel, healthcare, and more. What You’ll Do You’ll work on large‑scale, mission‑critical software engineering challenges, collaborating clos ...

    Front Office C# Developer Commodities Derivatives Hybrid

    Sanderson Recruitment is seeking a Front Office C# Developer for a hybrid position in City of London. The role focuses on supporting the Commodities Derivatives trading platform, which includes pre-trade and pricing processes. Candidates should have a solid background in C# and experience in trading systems deve ...

    Fintech Technical Writer — API Docs & Developer Content

    Propel London Ltd. is seeking a skilled Technical Writer to contribute to the creation and maintenance of technical documentation and API references. This role demands strong experience in writing technical product content, particularly related to APIs and SDKs. The Technical Writer will work closely with variou ...

    Junior Quant Developer – HFT & Low Latency Trading

    Queueco Limited is seeking a graduate for an onsite role as a quantitative developer specializing in High-Frequency Trading (HFT) in Greater London. You will work with traders to understand market data and APIs, requiring strong programming skills and attention to detail. Candidates with relevant internships or ...

    VP Quantitative Developer High Performance Pricing & Risk

    Citigroup Inc. is seeking an experienced Quantitative Developer to join the Numerical Performance Group in London. The role involves designing and enhancing quantitative libraries for pricing and risk management, leveraging advanced mathematical techniques. Ideal candidates will have strong programming skills in ...

    .NET Developer for CI/CD & Kubernetes Innovator

    A leading technology firm in the UK is seeking a skilled .NET Developer to enhance their digital infrastructure. In this role, you will design and implement scalable solutions that optimize CI/CD pipelines and leverage Kubernetes for maximum efficiency. You will work closely with cross-functional teams to tackle ...

    Hybrid Mainframe Developer — CICS / z/OS Expert

    N Consulting Limited is seeking a Mainframe Developer with experience in IBM Mainframe technologies, including CICS, z/OS, and COBOL, to work on critical banking applications. The role involves development, maintenance, and optimization of legacy systems, with a focus on performance tuning and production support ...

    Remote Full Stack Developer — React + .NET Core

    Crises Control is seeking a Full Stack Developer experienced in React.js, .NET Core, and MS SQL to join their team in Greater London. The role involves designing and developing user interfaces and robust APIs while collaborating with cross-functional teams in an Agile environment. Candidates should have 3+ years ...

    Software Developer Equity Market Making Trading Platform

    Software Developer - Equity Market Making Trading Platform London, GB Full-Time Information Technology About Marex Marex Group plc (NASDAQ: MRX) is a diversified global financial services platform providing essential liquidity, market access and infrastructure services to client ...

    Salesforce Developer – Salesforce Core & Salesforce Industries (Vlocity)

    Salesforce Developer – Salesforce Core & Salesforce Industries (Vlocity) page is loaded## Salesforce Developer – Salesforce Core & Salesforce Industries (Vlocity)locations: Romania-Remoteposted on: Posted 30+ Days Agojob requisition id: R23328x8 connects our customers and teams globally, empowering CX lead ...

    Lead Java Developer FX Options Realtime Risk

    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 ...

    PHP Developer with React – Hybrid London, Ownership

    Synchro is seeking a PHP Developer in Greater London to enhance and maintain three core applications using React and PHP. This role offers an excellent opportunity to take ownership of existing systems while supporting future migration plans to a .NET environment. Ideal candidates should have experience in maint ...

    Technical Product Manager Developer Tools (Hybrid, London)

    Technical Product Manager – Developer Tools / need manual testing and web exp. Location: Central London (Hybrid – 2 days WFH) Salary: Up to £140,000 Benefits: Private healthcare, gym membership, hardware budget, and more A rare ...

    FX Technology – Cross Border Payments Developer (AVP)

    FX Technology – Cross Border Payments Developer (AVP) About Citi As the world’s most global bank, Citi gives you the tools to be a trailblazer. We’re not just building technology; we’re building the future of banking. With thousands of employees located around the globe, we are an inter ...

    VP, Technical Product Manager — Developer Tooling (Athena)

    A leading global financial services firm is seeking a Technical Product Manager in London to lead the Athena Platform Developer Tooling team. This role requires collaboration with engineering teams and business units to prioritize and deliver digital solutions. Key responsibilities include managing the product b ...

    JD Java Developer Intern Placement London, UK

    We are looking for an enthusiastic and motivated Java Developer Intern to join our development team. This role offers a unique opportunity to gain hands‑on experience in software development, work on real‑world projects, and enhance your Java programming skills in a professional environment. Qua ...

    Developer Relations Engineer Android & Google Play Games

    A leading global technology company is seeking a Developer Relations Engineer to engage with developer communities and advocate for developer interests. You will solve technical problems, lead workshops, and collaborate with product engineering teams to enhance user experience for gaming on Android. Candidates s ...

    Developer Relations Engineer, Android and Play, Games

    Developer Relations Engineer, Android and Play, Games London, UK Mid Experience driving progress, solving problems, and mentoring more junior team members; deeper expertise and applied knowledge within relevant area. Bachelor's degree in Computer Science, a similar ...

    Remote Windows Platform Developer WSL2 & Cross Platform

    A technology company in the UK is seeking a Windows Platform Developer for a 9-month contract focused on designing and implementing a modern development environment. You will evaluate and implement WSL2, balance security and developer experience, and collaborate on a cross-platform strategy. Strong skills in Win ...

    Lead .NET/JS Developer Perm Creative Agency

    Job Type: Permanent Location: London Job Ref: BBBH _ Date Added: April 22nd, 2026 Consultant: Heather Thompson Tech Lead - Award Winning Creative Agency Hybrid: 3 days per week to the London Office We're working with an award‑winning digital experien ...

    VP Product Developer: Data Driven Institutional Banking

    Citi is seeking a Product Development professional in London to join their Enterprise Data Office. This role focuses on creating product visions, managing execution, and collaborating across teams to implement analytic capabilities. Candidates should have experience in data analysis, problem-solving, and financi ...

    SC Cleared MS Dynamics Developer F&O

    SC Cleared MS Dynamics Developer F&O £400 to £500 per day Outside IR35. London, Hybrid (2/3 days per week). 6‑Month initial contract. Must have active SC clearance. iO Associates are currently looking for an SC‑cleared MS Dynamics Developer to join a NATO project within the next month on ...

    Java Developer Hybrid, Core Hours, Great Benefits

    Pharmacy2U Ltd is seeking a Java Developer to contribute to the development of new medical services. This role encompasses hands-on development, working within a microservices architecture, and maintaining existing healthcare services. Candidates should have experience with Java, Spring Boot, and cloud environme ...

    ServiceNow Developer in London VIRTUS Data Centres

    VIRTUS Data Centres is a UK and global leader in the data centre industry, committed to delivering reliable, resilient and responsible digital infrastructure. VIRTUS owns, designs, builds and operates a new generation of agile, connected data centres. Requirements Service Catalogue, CMDB, P ...

    C# & Angular Developer for Trade Tech Solutions

    A leading financial services company in London is seeking a C# / Angular Developer for a 6-month FTC. You will be a key member of a dynamic team that develops applications for Treasury, Centralised Execution, and Equities. Ideal candidates will have strong experience in C#, Angular, and a passion for driving imp ...

    Developer Experience Lead — Remote & Global API Platform

    OpenFX in London is seeking a Developer Experience Lead to elevate API product adoption and oversee documentation and developer support. In this foundational role, you will shape the developer experience, define standards, and drive external and internal developer advocacy. With a background in API product manag ...

    Hybrid London: RTD Beverages & Supplements Product Developer

    Aspire is seeking a Product Developer for functional beverages and supplements in London. This role focuses on leading new product development, ensuring compliance and quality across various markets. Ideal candidates will have over 3 years of product development experience, especially with ready-to-drink beverag ...

    Freelance Business Developer (UK Market) M/F

    At Transatel, we imagine innovative cellular connectivity solutions and deploy them around the world for prestigious clients like Airbus, Stellantis, Worldline and Jaguar Land Rover. As a leading Mobile Virtual Network Operators enabler and global IoT connectivity pioneers, our SIM & eSIM connect millions of ...

    Building Manager BTR | Major Real Estate Developer

    Building Manager – Flagship BTR | Major Real Estate Developer Location: Central London Salary: £56,000 to £60,000 plus package Benefits: 12.5% pension, private healthcare, 50% off gym memberships. ...

    Quant Developer – Trading Analytics – Equity Derivatives Tech

    **Quant Developer – Trading Analytics – Equity Derivatives Tech** 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 ...

    C# Front Office Developer TOP HEDGE FUND!

    C# Front Office Developer- TOP HEDGE FUND! Robert Half Limited is representing this client. This is a Permanent role with a high bonus Hybrid working -Based in the city and 3 days in the office and 2 days from home This isn't a large PM environment, it's for developers who ...

    Lead .NET/JS Developer Perm Creative Agency

    Tech Lead - Award Winning Creative Agency Perm: £80,000-£90,000 Hybrid: 3 days per week to the London Office We're working with an award-winning digital experience studio that sits at the heart of a leading creative partnership. This team designs, builds, and evolves digital products and ...

    Finance Systems Developer – Hybrid (12‑Month FTC)

    RSA Group is looking for a Finance Systems Developer for a 12-month FTC based in Greater London. This hybrid role involves the delivery of finance reporting systems, requiring skills in finance systems development, SQL knowledge, and experience with CCH Tagetik. You will collaborate with finance and IT teams for ...

    Freelance Business Developer (UK Market) M/F

    At Transatel, we imagine innovative cellular connectivity solutions and deploy them around the world for prestigious clients like Airbus, Stellantis, Worldline and Jaguar Land Rover. As a leading Mobile Virtual Network Operators enabler and global IoT connectivity pioneers, our SIM & eSIM connect millions ...

    FX Prime Brokerage Developer VP (FX Prime)

    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 ...

    Front Office C++ Quant Developer – Rates & Credit

    Jobs via eFinancialCareers is seeking a Contract Quantitative Developer (C++) specialized in Rates and Credit Derivatives in London. This hands-on role involves supporting pricing, risk, and P&L infrastructure, collaborating closely with trading desks and quantitative teams. Candidates should have 3–7 years of e ...

    Hybrid London: RTD Beverages & Supplements Product Developer

    Aspire is seeking a Product Developer for functional beverages and supplements in London. This role focuses on leading new product development, ensuring compliance and quality across various markets. Ideal candidates will have over 3 years of product development experience, especially with ready-to-drink beverag ...

    Java Developer for Trading (Securities Lending) VP

    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 ...

    FX Risk Lead Java Developer Vice President

    Citi’s Markets technology team is growing at lightning speed, and we’re looking for talented technologists to help build the future of global banking. Our teams are creating innovations used across the globe. As the world’s most global bank, Citi provides an opportunity to touch every corner of the globe and dea ...

    FX Technology – Cross Border Payments Developer (AVP)

    **FX Technology – Cross Border Payments Developer (AVP)** **About Citi** As the world’s most global bank, Citi gives you the tools to be a trailblazer. We’re not just building technology; we’re building the future of banking. With thousands of employees located around the globe, we are an inter ...

    FX Risk — Lead Java Developer | Vice President

    Citi’s Markets technology team is growing at lightning speed, and we’re looking for talented technologists to help build the future of global banking. Our teams are creating innovations used across the globe. As the world’s most global bank, Citi provides an opportunity to touch every corner of the globe and dea ...

    FX Prime Brokerage Developer VP (FX Prime)

    **FX Prime Brokerage Developer VP - (FX Prime)** 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 deplo ...

    Quantitative Developer – Up to £200,000 + Bonus + Benefits

    Up to £200,000 + Bonus + Full Benefits ...

    Energy Quant Developer: Build Trading Models & Cloud

    A leading financial services firm is seeking a highly skilled Quantitative Engineer to work on Commodities Trading. The role involves collaborating with traders on complex trading problems, designing high-performance applications, and implementing quantitative models. Ideal candidates hold a degree in a relevant ...

    Quantitative Developer: Build High Impact Trading Analytics

    A leading financial technology firm in Greater London is seeking motivated Quantitative Developers. In this role, you will collaborate with quantitative researchers and build tools that enhance trading and research workflows. Ideal candidates should possess strong programming skills in Python or C++ and have a d ...

    SC Cleared Lead Developer: Azure/.NET Microservices

    A leading software engineering consultancy seeks a hands-on Lead Developer to set technical direction and lead teams in building cloud-native microservices solutions. The role requires strong skills in C#/.NET and extensive experience in Azure and DevOps practices. The ideal candidate will thrive in regulated en ...

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      Senior Python Developer Pythonawsreact Jobs in London Job Search Guide, Trends and Insights