senior java software engineer jobs in London

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1,000 senior java software engineer job listings in United Kingdom. Find daily updated positions from leading job boards.


  • london, United Kingdom WorldQuant Full-time

    WorldQuant develops and deploys systematic financial strategies across a broad range of asset classes and global markets. We seek to produce high-quality predictive signals (alphas) through our proprietary research platform to employ financial strategies focused on market inefficiencies. Our teams work collaboratively to drive the production of alphas and...


  • london, United Kingdom Octopus Energy Full-time

    London (GB) / Remote (GB) / Brighton (GB)Octopus Electric Vehicles ð – Product & Technology /Full-time /HybridWhat we do. Electric Car Leasing Why we do it. Greener. Fairer. Future.We’re looking for a Senior Software Engineer (Python) to join our product and engineering team building the systems that power our ability to revolutionise the electric car...


  • London, England, United Kingdom JPMorgan Chase & Co. Full-time

    We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible. As a Lead Software Engineer at JPMorgan Chase within the Credit Data Pond team housed within Wholesale credit risk technology, you are an integral part of an agile team that works to enhance, build, and deliver trusted market-leading...


  • London, England, United Kingdom FIS Full-time

    Are you curious, motivated, and forward‑thinking? At FIS, you’ll work on some of the most complex and impactful challenges in modern banking, helping build next‑generation, AI‑enabled platforms used by financial institutions worldwide. We foster an environment that values ownership, autonomy, and end‑to‑end responsibility, where engineers are...


  • Charing Cross, London, United Kingdom Iris Software Full-time

    About IRISIRIS Software Group is one of the UK's largest privately held software companies, trusted by 100,000+ businesses, schools and accountancy firms to keep their operations running.Please make an application promptly if you are a good match for this role due to high levels of interest.Our software pays 1 in 6 UK employees, supports over 12,000 schools,...


  • london, United Kingdom wayve Full-time

    Job-ID: aa7ad033-e6a1-43ca-a77f-6faa c2Salary: USD - yearEmployment type: FULL TIMEPosted: Before the detail, here's the challenge you'd help us solve.We build the embodied intelligence that moves real vehicles safely, and the ecosystem a billion machines will run on in the future. Very few people in AI can say this. Every role here, whatever the team,...


  • london, United Kingdom Understanding Recruitment Full-time

    10000 - 80000 per annumCity of London, LondonPermanentSenior C++ Software Engineer - AI & Engineering SoftwareLocation: Central London, primarily office-based with some flexibilityWe're partnering with an AI startup building software to help engineers design and develop physical products faster. Combining machine learning with complex engineering software,...


  • london, United Kingdom Palantir Technologies Full-time

    London, United KingdomDev /Full-time /HybridA World-Changing CompanyPalantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more.The...


  • london, United Kingdom Source Group International Full-time

    Reference: 57555We are seeking a highly skilled Senior Backend Engineer (Golang) to design, build, and scale cloud-native backend platforms that power enterprise AI and GenAI initiatives across a global banking environment. This role will focus on developing reusable engineering blueprints, establishing LLMOps best practices, and delivering secure, scalable...


  • london, United Kingdom LinuxRecruit Full-time

    Road to Unicorn!Join a company at the inception of their ambitious journey! As an innovative AI start-up, they seek a talented and pragmatic individual to play a pivotal role in their team. You will be instrumental in building cutting-edge features for their enterprise application, currently in its prototype stage. If you thrive in fast paced environments...


  • london, United Kingdom Beacon Full-time

    Job Summary:We are seeking a skilled and motivated Senior Software Engineer to join our dynamic team at CWAN. The role joins our Beacon Core Engineering team. The Core team develops large part of Beacon Cloud, just above the Platform abstraction. It deals with the developer tools (SDLC) that we offer to clients and use internally - IDE including Cline...


  • London, England, United Kingdom Nuxt Full-time

    What we do LineTen is on a mission to crack the code on urban delivery. By leading with our values and putting carrier partners first, we are paving the way for better delivery experiences. LineTen is a new approach to delivery with a free carrier API and an operations management platform for shippers. We're building the first global data-driven last-mile...


  • london, United Kingdom Cboe Exchange Full-time

    Job DescriptionBuilding trusted markets – powered by our people.At Cboe Europe, we inspire our people to solve complex challenges together because what we do matters. We provide the financial infrastructure that powers the global economy. As a leading provider of market infrastructure and tradable products, Cboe delivers cutting-edge trading, clearing and...


  • london, United Kingdom Harnham Full-time

    THE GLOBAL LEADER IN DATA & ANALYTICS RECRUITMENTHarnham Search and SelectionCompany Number: Harnham Search and Selection is a registered company in England and Wales. Reg no. Harnham Europe LimitedCompany Number: Harnham GmbHHRB: Harnham B.V.KvK Number: Harnham Inc.Company FEIN: Registered office: 3rd Floor, Melbury House, 51 Wimbledon Hill Road,...


  • london, United Kingdom Citadel Securities Full-time

    Role Summary Options market making presents a unique challenge in combining scale with business complexity. With over a million of listed options at the heart of billions of messages, we handle internet-scale datasets while being constrained on hardware due to latency requirements necessitating exchange co-location. This forces us to both push the machines...


  • london, United Kingdom LinuxRecruit Full-time

    Some things are up for debate:Marmite - Love it or hate itThe best chocolate in a tub of Celebrations?Linux vs WindowsWhich public cloud platform is the best?Haven’t even mentioned politics…Some things are not up for debate.Buffering is annoying, the middle of a film edge of your seat or you’re just about to get your high score and the dreaded circle...


  • London, England, United Kingdom Marks & Spencer Full-time

    Job-ID: 124615Category: Software EngineeringLocation: United KingdomWorkplace: HybridSchedule: Full time, NAPosted: 2026-10-06SummaryAs part of the M&S Software Engineering team, you’ll be joining a well-loved historic brand, working on solutions that serve millions of loyal customers and thousands of colleagues.Do you have the right skills and experience...


  • london, United Kingdom TripAdvisor Full-time

    About TripadvisorThe Tripadvisor Group connects people to experiences worth sharing, and aims to be the world’s most trusted source for travel and experiences. We leverage our brands, technology, and capabilities to connect our global audience with partners through rich content, travel guidance, and two-sided marketplaces for experiences, accommodations,...

  • Senior Java

    2 hours ago


    London, England, United Kingdom IG Group Full-time

    IG Group is seeking a Senior Java/FIX Engineer for IG Prime to own the APIs connecting IG to institutional clients. You’ll work on real-time price distribution, order flows, and reference data, modernising the FIX estate and building cloud-native trading APIs.You’ll lead end-to-end service ownership, tackle latency and resilience, and collaborate with...


  • London, England, United Kingdom Broadridge Financial Solutions Full-time

    Broadridge Financial Solutions seeks a Senior Full Stack Developer to join the AI Enablement Team. You will design, develop, and enhance AI-enabled platforms with a focus on GenAI, vector stores, RAG, and context engineering.The role requires leadership, collaboration with architects, and delivering scalable software solutions. The ideal candidate has 7+...