java developer jobs in London

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

  • Software Developer

    5 days ago


    london, United Kingdom Sanderson Recruitment Full-time

    Software Developer Remote – monthly travel400-500 outside IR35Requires Active SC Clearance Overview We are seeking an experienced Software Engineer to join a critical digital transformation programme supporting the UK Defence and National Security sector. This role will contribute to the delivery of secure, important digital services that support...


  • London, England, United Kingdom Joseph Harry Ltd Full-time

    Joseph Harry Ltd in London is seeking a Java Developer to join a team of 8 global quantitative developers focused on equity derivatives analysis and productionising models.90% Java, 10% Python; you will work with front office traders and quants, delivering robust software for fixed income and equity markets with strong design and architecture requirements....


  • Charing Cross, London, United Kingdom Quant Capital Full-time

    Junior Java Developer –Python, Ruby, Fintech50London45,000-50,000 + bonusQuant Capital is urgently looking for a Junior Java Developerto join our high profile client.If you want to know about the requirements for this role, read on for all the relevant information.Our client is an established financial data technology start up. They enable rapid trading...


  • London, England, United Kingdom Digital Preservation Coalition Full-time

    A leading digital archiving organization in London seeks a Lead Developer proficient in Java and Scala to oversee software development in their Digital Preservation team. You will manage systems critical to preserving national digital records and lead innovation within the department. The ideal candidate has experience in Linux and AWS, mentoring abilities,...


  • London, England, United Kingdom Citi Full-time

    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...


  • london, United Kingdom Quant Capital Full-time

    Java Ruby Python Developer Quant Capital is urgently looking for a Java / Scala / Ruby Developerto join our high profile client. Our client is an established financial data technology start up. They enable rapid trading transactions to be processed and are innovators in algorithm matching, big data and language processing. They are well known to take...


  • London, England, United Kingdom Barclays Full-time

    Barclays in London seeks a Java Full Stack Developer to help kick off a legacy system replacement for the Fixed Income trade platform. You will build modern Java microservices with Spring Boot and deliver end-to-end features using Angular on the frontend.The role emphasizes real-time messaging with Solace MQ and gRPC, DevOps practices, CI/CD pipelines and...


  • London, England, United Kingdom Nomura Holdings, Inc. Full-time

    Nomura Holdings, Inc. seeks an Algo Developer for a 6 to 12 month contract in London. The role involves designing and developing algorithmic trading systems and requires expertise in Java and collaboration across teams.The ideal candidate will have a bachelor's or master's degree in computer science or engineering, and experience in algorithmic trading. Join...


  • London, England, United Kingdom OneAPPS Consulting Full-time

    OneAPPS Consulting (www.oneapps.com) is a Technology consulting firm based out of London and offices across Europe. We are working on various projects involving diverse, multicultural teams with clients across the Europe. We are an invaluable partner and our teams have collaborated to support the growth of our clients. With more than 7 locations worldwide we...


  • London, England, United Kingdom Barclays Full-time

    Barclays in London is seeking a Low Latency Developer to design, develop and optimize high-performance trading systems that underpin our markets platform. You will contribute to latency-sensitive algorithmic rollouts and ensure the platform remains fast, stable, and precise in a dynamic trading environment.The role emphasizes secure coding, performance...


  • London, England, United Kingdom Capgemini Full-time

    ОписаниеJoin Capgemini's Financial Services Business Unit within the Cloud & Custom Applications (C&CA) practice, where we Consult with Purpose. Continuously Evolve. Architect Tomorrow. We are seeking a talented Java Full Stack Developer to help deliver scalable, business-critical solutions for Broker Dealer and Capital Markets clients. This role is...

  • Full Stack Developer

    5 hours ago


    London, England, United Kingdom Methods Full-time

    As a Full Stack Developer, you will discover, design, build, cloud-based applications and prototypes that support discovery workYou’ll work across both front-end and back-end development, helping teams explore, test, and validate new technical approaches and digital services that underpin wider reform programmesDesign, develop, and test applications using...


  • london, United Kingdom Citigroup Full-time

    Job ID: Posted: Location: London, England, United Kingdom Category: Technology Company: Citi 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...

  • Staff Java Developer

    22 hours ago


    London, England, United Kingdom S.i. Systems Salary Full-time

    Our consumer business client is seeking a Staff Java Developer (10+ years) to deliver hands-on software development using Java, Kotlin, AWS, and AI/Agent coding toolsThis role supports advanced software development initiatives within a consumer business environment. The position focuses heavily on hands-on development using Java, Kotlin, AWS, and AI/Agent...


  • London, England, United Kingdom Project Freelance Full-time

    Join CGI as a Senior Full Stack Developer and help shape the digital services that support access to justice across the UK. Working with one of our key UK Government Department clients, you’ll take ownership of reusable technology that enables their services to onboard faster, integrate consistently and operate reliably. You’ll apply your Java and...


  • London, England, United Kingdom Centrica Energy Full-time

    Centrica Energy, based in London, is seeking a Senior ETRM Analyst Developer to lead development and support for its OpenLink Endur platform. You will work with Front, Middle and Back Office teams, delivering robust trading and risk management solutions and driving technical improvements.The role requires strong Java, Oracle PL/SQL and OpenLink expertise,...

  • Java Algo Developer

    5 days ago


    london, United Kingdom Millennium Management Full-time

    Java Algo Developer - EQ Trading TechnologyAbout Millennium Millennium is a global, diversified alternative investment firm, founded in 1989. Defined by evolution, innovation and focus, Millennium’s mission is to deliver results for our investors. Our people are empowered with both independence and support: the autonomy to pursue ideas with conviction and...


  • london, United Kingdom Quant Capital Full-time

    Junior Java Analyst Developer / Technical Consultant 95,000 p/a Quant Capital is urgently looking for a Java Analyst Developer / Technical Consultant to join our high profile client. Our client is a global trading platform software business. Its products are used globally by most asset managers and pension funds. They are well known in the fintech space...


  • greater london, england, United Kingdom, England Luxoft Full-time £90,000 - £130,000

    Project description We are DXC Luxoft Financial Services - an award-winning provider of technology solutions dedicated to the Financial Services sector.We are building a new high-impact engineering squad in Bucharest to deliver a critical Financial Markets Clearing Platform for FX Swaps, a key component in the global clearing ecosystem. This initiative is...


  • london, United Kingdom Quant Capital Full-time

    Senior Java Analyst Developer / Technical Consultant 105,000 Plus Bens Quant Capital is urgently looking for a Java Analyst Developer / Technical Consultant to join our high profile client. Our client is a global trading platform software business. Its products are used globally by most asset managers and pension funds. They are well known in the fintech...