senior java backend developer jobs in London

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


  • London, United Kingdom Palantir Technologies Full-time

    A World-Changing Company   Palantir 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 Role   Backend Software Engineers at Palantir build...


  • London, United Kingdom Miratech Full-time

    Company DescriptionMiratech helps visionaries change the world. We are a global IT services and consulting company that brings together enterprise and start-up innovation. Today, we support digital transformation for some of the world's largest enterprises. By partnering with both large and small players, we stay at the leading edge of technology, remain...


  • Greater London, England, United Kingdom The Business Connection Group Full-time

    The Business Connection Group is seeking a Senior Backend Software Engineer to join a remote UK-based team building high-performance connectivity infrastructure. You will design, implement and optimise core backend systems, working with a top-tier engineering group.Requirements include 5+ years in software development and proficiency in Go, C/C++, Rust or...

  • Backend Engineer

    2 days ago


    Greater London, England, United Kingdom Synthesized Full-time

    About UsIt's hard to build a reliable system. It's harder to make sure that what you've built is really reliable.Synthesized is redefining software testing with agentic AI. Our platform automates test data, test cases, and test environments - empowering enterprise teams to ship faster, reduce compliance risks, and modernise QA at scale.Our products are used...


  • Greater London, England, United Kingdom M-KOPA Full-time

    Join our expanding engineering team! We're hiring a permanent Senior Backend Engineer to join our Asset Sales group as we scale one of the most important parts of M-KOPA's FinTech platform. Build distributed, event-driven microservices and help shape what AI-native engineering looks like at M-KOPA. The Impact Your code will directly power the systems that...


  • Greater London, England, United Kingdom M-KOPA Ltd Full-time

    Join our expanding engineering team! We're hiring a permanent Senior Backend Engineer to join our Asset Sales group as we scale one of the most important parts of M-KOPA's FinTech platform. Build distributed, event-driven microservices and help shape what AI-native engineering looks like at M-KOPA. The Impact Your code will directly power the systems that...


  • London, United Kingdom Proxime Limited Full-time £50,000 Contract

    Job DescriptionSenior Software Developer – London - £50K DOEWhat we need is…We are looking for an experienced developer to be an essential part of our core platform team. You will be working predominantly on the technology that powers the entire business. All of our customer facing products are built on top of this platform and as such is not only...


  • London, United Kingdom Innova Solutions Full-time

    Senior Mobile Engineering Manager 24 month contract Inside IR35 – Paying up to £58 per hour via umbrella. Location: Hybrid – 3 days per week in office in London or Sussex We are seeking an experienced, Senior Engineering Manager to lead the implementation of the mobile application service layer (Backend-for-Frontend) for a next-generation iOS and...

  • Backend Developer

    7 days ago


    London, England, United Kingdom Octopus Energy Group Full-time

    About Octopus Electroverse We’re making electric vehicle public charging simple, by building the giant, virtual charging platform of the future. In just five years, Octopus Electroverse has become Europe’s largest eMobility charging network, with over 1.4 million connected electric vehicle chargers globally across 79 countries. Our customer ecosystem...


  • Greater London, England, United Kingdom NextWave Consulting Full-time

    A tech consulting firm seeks a Backend Java Developer in Birmingham to build core backend services for a Data Fabric platform. Candidates should have strong experience with Java, Spring, and SQL transformations. This role involves working on data governance and performance-oriented backend solutions, ideally in a hybrid environment, offering a salary between...

  • Junior Software

    17 hours ago


    London, United Kingdom Reed Technology Full-time

    Junior Software & Systems Developer Location: London - Hybrid working Salary: Up to £40,000 per annum Job Type: Full-time, PermanentA new exciting opportunity has become available to join one of the UK's leading independent providers of 4G & 5G broadband as a Junior Software & Systems Developer. A technology-led business, continually developing their...


  • West London, United Kingdom MarkIT Placements Full-time

    Job DescriptionMy client, a startup in London, is looking for a Lead Software Engineer (Backend Platform Services). For full details, please apply.At A Minimum, We Would Expect -Enthusiasm for developing technologies to solve real problems -Demonstrable coding skills -Confidence to challenge our engineering customs and practices -Overwhelming desire to ‘do...


  • Greater London, England, United Kingdom Webologix Ltd/ INC Full-time

    Webologix Ltd/ INC is looking for a Mid-Senior Java Developer in Greater London to join our engineering team. You will build robust backend systems, design RESTful services, and contribute to scalable microservices while upholding code quality and best practices.You\'ll work on end-to-end real-world projects, collaborating with product and QA, solving...


  • Greater London, England, United Kingdom Next Frontier Capital Full-time

    JPMorganChase is seeking a Senior Lead Software Engineer in the Data Platforms team within the Chief Data & Analytics Office. You will drive the engineering of metadata, meta-modelling, and distributed systems, delivering secure, scalable technology products in a cloud environment.The role requires deep Scala/Java expertise, experience with AI-assisted...


  • London, europe, United Kingdom Praktika Remote Full-time US$1,000 Contract

    We are hiring for this position to be based in Europe Praktika is an AI-native education company on a mission to deliver efficient, engaging language learning to billions of people worldwide. We're bridging the gap between traditional learning apps and human tutors through a fully automated tutorship experience powered by generative AI avatars.Since...

  • C++ Developer

    2 days ago


    London, United Kingdom Client Server Full-time

    C++ Developer / Backend Software Engineer London to £125kAre you a backend focussed C++ Developer with Front Office trading systems experience?You could be progressing your career in a senior, hands-on C++ Developer role at the Investment Management arm of a global bank. xpwpeyx As a C++ Developer you'll focus on the redevelopment and customisation of a...

  • Java Developer

    7 days ago


    City Of London, England, United Kingdom IBM Full-time

    Join to apply for the Java Developer - Leicester role at IBM. Introduction At IBM CIC, we provide technical and industry expertise to a wide range of public and private sector clients in the UK. A career in IBM CIC means you’ll have the opportunity to work with leading professionals across multiple industries to improve the hybrid cloud and AI journey for...


  • Greater London, England, United Kingdom Enfint Full-time

    Описание:JD.com operates a global technology and supply chain ecosystem spanning retail, logistics, technology, property, and cross-border commerce. The company serves over 700 million active customers through advanced logistics, digital platforms, and international operations.Задачи:Develop and maintain transaction-related backend services...


  • London, United Kingdom Wise Full-time £111,000 - £145,000 Contract

    Company DescriptionWise is a global technology company, building the best way to move and manage the world’s money. Min fees. Max ease. Full speed.Whether people and businesses are sending money to another country, spending abroad, or making and receiving international payments, Wise is on a mission to make their lives easier and save them money.As part of...


  • Greater London, England, United Kingdom Mulbridge Partners Full-time

    Mulbridge Partners in London is seeking a Senior Quant Developer to join the Pricing team, blending quantitative research with production engineering to design and implement pricing, hedging and optimisation models within high‑performance Java systems.You will contribute to client pricing, liquidity modelling and automated hedging strategies while...