9 senior software engineer jobs found in London

End Date Saturday 10 October 2026 Salary Range £102,864 - £154,296 We support flexible working – click here for more information on flexible working options Flexible Working Options Flexibility in when hours are worked, Hybrid Working, Job Share Job Description Summary . Job Description JOB TITLE: Golang Lead Engineer SALARY: £84,624 - £128,580 (dependent on location and expereince) LOCATION(S): London and Bristol HOURS: Full time WORKING PATTERN: Our work style is hybrid, which involves spending at least two days per week, or 40% of your time, at one of our office sites. About this opportunity We are looking for a Golang Lead Engineer to lead the technical development and delivery of backend services that are reliable, secure, scalable and easy to operate! This role sits within Software Engineering and offers the opportunity to shape the Group's Mobile Security Core and wider backend capabilities. You'll combine hands-on...

Senior Front-End Developer (React)  – Equity Derivatives Technology – 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 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.  What We do / The Team  Equities Technology at Citi is undertaking a bold, multi‑year transformation to build a best‑in‑class global platform across execution, prime, clearing and cross‑product margining. We are...

End Date Thursday 08 October 2026 Salary Range £76,760 - £115,140 We support flexible working – click here for more information on flexible working options Flexible Working Options Hybrid Working Job Description Summary . Job Description JOB TITLE: Backend Software Engineer SALARY: £76,760 - £95,950 LOCATION: Hybrid (London) HOURS: Full Time (35 Hours) WORKING PATTERN: Our work style is hybrid, which involves spending at least two days per week, or 40% of our time, at one of our office sites. Colleagues with disabilities can be supported with workplace adjustments including hybrid working expectations in line with our Flexibility Works policy. What you’ll be doing… As a Backend Software Engineer, you’ll build elegant, performant, maintainable, operable and secure Golang microservices that power innovative financial products and services. You’ll collaborate closely with product, engineering and business stakeholders to deliver...

SwapClear Senior DevOps Engineer Job Description ABOUT US: LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a commitment to excellence in delivering the services our customers expect from us. With extensive experience, deep knowledge and worldwide presence across financial markets, we enable businesses and economies around the world to fund innovation, handle risk and create jobs. It’s how we’ve contributed to supporting the financial stability and growth of communities and economies globally for more than 300 years. Through a comprehensive suite of trusted financial market infrastructure services – and our open-access model – we provide the flexibility, stability and trust that enable our customers to pursue their ambitions with confidence and clarity. LSEG is headquartered in the United Kingdom, with significant operations in 70 countries across EMEA,...

Manager, Data Engineering Lead SwapClear and Listed Rates, LCH Ltd, London LCH, SwapClear and Listed Rates LCH Ltd is an international multi-asset class central counterparty clearing house (CCP), part of the London Stock Exchange Group.  LCH Ltd serves a broad range of exchanges and over-the-counter trading platforms providing critical risk management services.  It has a unique membership model and its customers span the globe and include major financial groups (including the majority of the major investment banks), broker-dealers and specialist commodity houses and a wide range of buy-side and real-money firms including major asset managers and large hedge funds. This role provides an opportunity to work on one of the most critical finance technology functions in the world. The LCH CCP is systematically significant to the world’s financial markets which requires technology that has to be very resilient and with strong controls. LSE Group also provides a chance...

Citi Treasury and Trade Solutions Group provides the industry's most comprehensive suite of treasury and trade solutions, including cash management, Trade and Working capital Solutions and commercial card programs and services. The role is responsible for leading the Trade and Working Capital Solutions Technology organization and is part of the TTS Technology Senior Management Team (SMT) and Trade and Working Capital Solutions Executive committee. The role will be driving and executing the TTS Trade and Working Capital Technology strategy, architecture and execution mainly focused growth, digitization and transformation, delivering scalability, risk reduction and providing enriched client experience in a timely manner. Trade and Working Capital Solutions technology is a team of over 800 engineers, servicing needs of the TTS client base across 90+ countries and processing an average of 1.5MM transactions per month.   As we continue to grow and evolve, there is a strong mandate...

ROLE SUMMARY: FTSE Russell, part of LSEG, powers some of the world's most recognised benchmarks and index solutions. Our technology, data and products help investors measure, manage and capture market opportunities across global financial markets. As we continue to modernise our platforms and scale our capabilities, our engineers, product specialists and data experts play a critical role in delivering innovative solutions that support investment decisions for clients worldwide. WHAT YOU'LL DO: We’re looking for a hands-on engineers  to help modernise and scale the FTSE platform — a cloud-native, low-latency system that operates at global scale and underpins critical investment products used worldwide. We are recruiting for individual contributors and leadership roles across a varied technical tech. You'll work on challenging problems across software engineering where performance, data quality, and reliability are non-negotiable, while leveraging modern cloud (AWS) and...

Citi, the world's most global bank, has been connecting clients to the world's most innovative financial solutions for over 200 years. We are a firm of innovators, leveraging technology to reinvent banking and redefine the future of finance. Join us within Investor Services as we build the next generation of financial products powered by Artificial Intelligence, strategically leveraging Citi's enterprise platforms and capabilities to accelerate innovation and deliver unparalleled value. The Opportunity:         Are you a visionary problem solver with a passion for creative thinking and deep technical expertise? Do you thrive in a dynamic, collaborative environment, working at the forefront of innovation? Citi is seeking an exceptional, hands-on Product Manager to lead the charge in developing and launching transformative Generative AI capabilities for our Investor Services business . This is a unique, forward-engineering role where you will operate at the...

Technical Product Lead, Global Equity and Multi-Asset Indices About the role We’re looking for a versatile, technical product lead for a broad role in FTSE Russell’s Equities Product, Research & Design team. You’ll own product outcomes across our Equity and Multi-Asset index offering while shaping the direction of a new in-house AI tool built within Research – moving between index product work and hands-on technical product leadership. This role suits someone who picks up unfamiliar problems fast and is energised by a fast-paced, ambiguous environment where decisions must be made at speed. Breadth, agility, a bias to action and a product-led approach matter more here than deep specialisation. About the team You’ll sit within Equities Product, Research & Design, currently as an individual contributor – though as the AI tool rolls out from internal users to external clients, we expect the product effort to grow into a team. Co-location in London with the...