java intern jobs in London

3,679 java intern job listings in United Kingdom. Find daily updated positions from leading job boards.


  • London, England, United Kingdom Energy Jobline ZR Full-time

    Job DescriptionSenior Java Architect | Banking, Payments & AI EngineeringLocation: London (Hybrid)Role Type: ContractRate: Up to £600 a day (Outside IR35)We're seeking an experienced Java Architect to play a key role in a major banking transformation programme, helping to deliver enterprise-scale banking and payments platforms with a focus on cross-border...


  • London, England, United Kingdom Testing Site - JPMC 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 JPMorganChase within Corporate Technology, youare an integral part of an agile team that works to enhance, build, and deliver trusted market-leading technology products in a secure, stable, and scalable way....


  • London, England, United Kingdom Itrs Insights Full-time

    Recognised as a Great Place to Work, ITRS is an Enterprise SaaS provider with industry-leading solutions. Our mission is to make society’s critical technology work via automated & holistic IT observability solutions that safeguard critical applications and enable innovation.With our prestigious customer base includes 90% of the world's top investment...


  • london, United Kingdom Quant Capital Full-time

    Java Software Developer – Trading Systems (Remote) Amsterdam or LondonQuant Capital is partnered with a leading technology-driven trading firm looking to hire an experienced Java Software Developer. This is a hands-on engineering role building the core software platform used across research, trading systems and operations.The role suits a strong software...


  • London, England, United Kingdom ig Full-time

    Job TitleSenior Software Engineer - (Java/AI) LifecycleJob DescriptionSo, who are we?IG has been at the centre of retail trading and investment since 1974, when we helped create the market for financial spread betting. Today, we're a FTSE100 fintech operating across five continents, serving over 700,000 clients and handling billions in transactions - built...

  • Senior Java Engineer

    9 hours ago


    London, England, United Kingdom Elastic Full-time

    We are on the lookout for a Senior Software Engineer to join our Elasticsearch team and focus on ensuring that the shared platform functionalities of Elasticsearch are easy to use, performant, maintainable, and secureThe team’s mission is to create foundational infrastructure and shared functionality that enables engineers to develop, extend, and support...


  • London, England, United Kingdom FalconSmartIT Full-time

    Falconsmartit in London is seeking a Senior Java Developer with Solace to join a hybrid team in permanent role. You will design, develop, and maintain Java applications using Spring Boot and Solace, integrate with internal and external systems, and implement RESTful APIs and microservices.The ideal candidate has 7+ years of experience, strong testing with...


  • London, England, United Kingdom DCV Technologies Full-time

    DCV Technologies in London, UK (Hybrid-2/3 days from office) is seeking a Java Low Latency Engineer for a long-term contract. You will optimize Java performance, tune the JVM, and build high-frequency, event-driven systems designed for low latency.Ideal candidates have strong multithreading, data structures knowledge, and familiarity with Linux internals....

  • Senior Java Developer

    9 hours ago


    London, England, United Kingdom Luxoft Full-time

    Project description Join a global technology team developing high-performance, low-latency platforms supporting critical trading and real-time processing workflows. The project focuses on building event-driven and reactive Java systems designed to operate at high frequency with demanding latency and throughput requirements.The environment combines advanced...


  • London, England, United Kingdom Citigroup Full-time

    FX Risk Lead Java Developer + AI (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...


  • London, England, United Kingdom LMAX Group Full-time

    LMAX is a high-performance, ultra-low latency exchange written in core Java. Join a team that pushes technology further, especially on greenfield projects, and ships with fast feedback and pair programming.You will work across the stack, solving performance-critical challenges with Kubernetes, Nomad, Docker, Kafka, and MySQL, while learning from regular...


  • London, England, United Kingdom Elsevier Limited Company Full-time

    About the team:You will join the Identity & Access Management team, which owns the authentication and authorisation infrastructure underpinning Elsevier’s global product suite. We build and operate a highly available identity platform that integrates with multiple identity providers, entitlement services, and downstream APIs, running on AWS ECS and...


  • London, England, United Kingdom RELX Full-time

    Do you enjoy designing and developing scalable, high-performance applications using Java and JavaScript? Do you enjoy designing and developing scalable, high-performance applications using Java and JavaScript? About The Team You will join the Identity & Access Management team, which owns the authentication and authorisation infrastructure underpinning...


  • London, England, United Kingdom RELX International Full-time

    Senior Software Engineer I (Java & JavaScript)Do you enjoy designing and developing scalable, high-performance applications using Java and JavaScript?About the team:You will join the Identity & Access Management team, which owns the authentication and authorisation infrastructure underpinning Elsevier's global product suite.We build and operate a highly...


  • London, England, United Kingdom Elsevier Limited Company Full-time

    Senior Software Engineer I (Java & JavaScript)Do you enjoy designing and developing scalable, high-performance applications using Java and JavaScript?About the team:You will join the Identity & Access Management team, which owns the authentication and authorisation infrastructure underpinning Elsevier’s global product suite. We build and operate a highly...


  • London, England, United Kingdom Testing Site - JPMC 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 EDG Technology Org, you are an integral part of an agile team that works to enhance, build, and deliver trusted market-leading technology products in a secure, stable, and scalable...


  • London, England, United Kingdom Randstad Technologies Recruitment Full-time

    Randstad Technologies Recruitment in London is seeking a specialist High-Performance Java Engineer to expand agency liquidity on Principal Risk. You will join a team delivering low-latency trading platforms, working hybrid from London with three days in-office.The role requires expert Java, JVM internals, and experience with memory profiling, GC tuning, and...


  • London, England, United Kingdom G-Research Full-time

    We tackle the most complex problems in quantitative finance, by bringing scientific clarity to financial complexity. From our London HQ, we unite world-class researchers and engineers in an environment that values deep exploration and methodical execution - because the best ideas take time to evolve. Together we’re building a world-class platform to...


  • London, England, United Kingdom Talos Full-time

    Talos in London is seeking a Software Engineering Intern to join the Infrastructure team for Summer 2027. You will collaborate with engineering squads to build, scale and maintain the system that powers Talos’s trading and settlement platform, gaining hands-on experience with distributed systems and platform engineering.The role requires pursuing a BSc in...


  • London, England, United Kingdom Barlowe LLP Full-time

    We tackle the most complex problems in quantitative finance, by bringing scientific clarity to financial complexity. From our London HQ, we unite world-class researchers and engineers in an environment that values deep exploration and methodical execution - because the best ideas take time to evolve. Together we’re building a world-class platform to...