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.


  • London, England, United Kingdom Client Server Full-time

    Java Developer / Backend Software Engineer (AI Claude Java) Newcastle onsite to £120k Do you have expertise with backend Java development within finance / trading environments? You could be progressing your career in a senior, hands-on Java Developer role at a scaling FinTech. As a Java Developer you'll in a new client engagement, helping to modernise a...


  • london, United Kingdom Luxoft Full-time

    Project description Join a global technology team responsible for developing and supporting high-performance market-data and trading platforms across EMEA and the US. The project focuses on low-latency distribution of real-time market data from more than 70 proprietary direct feeds, including US Options markets.The platform operates in a...


  • london, United Kingdom Quant Capital Full-time

    Core Java Developer Trading Technology 90000 + bonus Quant Capital is urgently looking for a Core Java Developer to join our high profile client. Our client is well known Low Latency Trading liquidity provider and broker. (NO Finance experience needed) As a senior level developer, you will act within the Integration team to produce solution designs, proof...


  • London, England, United Kingdom Salt Search Full-time

    Senior Java Developer (AWS, Microservices) - Travel - SussexDaily rate: £550 - £700 (inside IR35)Duration: 3 - 6 monthsHybrid: 1 - 2 daysStart: ASAPMy new client is looking for a Senior Java Developer (AWS, Microservices) to join the team on a contract basis. You will play a key role in designing, developing, and maintaining secure, scalable, and...

  • Senior Java Developer

    2 hours ago


    London, England, United Kingdom Luxoft Full-time

    Project descriptionJoin 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 NextWave Consulting Ltd Full-time

    Backend Java Developer – Data Fabric / Platform Engineering Location: London (Hybrid)Employment: PermanentSalary: £70,000 – £90,000 base (dependent on experience) If your idea of backend engineering is more than CRUD APIs and microservices boilerplate — this role is for you. We’re building the core backend services of a Data Fabric platform that...

  • Senior Java Developer

    6 hours ago


    London, England, United Kingdom RE Partners Full-time

    Who We AreWho We Are: We are a fast growing business and technology consultant company co-founded in 2019. We offer a custom-tailored, white-glove engineering service fit for our clients, because a digital transformation is more than just technology. With a successful track record of being a preferred vendor for Fortune 500 companies and as a trusted partner...


  • London, England, United Kingdom Searchability Full-time

    Searchability is seeking a skilled Java Developer to join our UK-wide team. You will design, develop and test complex multi-tier applications, focusing on scalable, resilient systems using Java, Spring, REST APIs and microservices.You will work in agile teams, applying TDD, pair programming and continuous integration to deliver high-quality software. The...


  • London, England, United Kingdom HCL Technologies Limited Full-time

    HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life...


  • London, England, United Kingdom Citi Full-time

    Citi ищет опытного инженера-разработчика и аналитика для глобальных финансовых систем. Вы будете сотрудничать с управленческими командами, внедрять новые продукты и оптимизировать процессы,...


  • London, England, United Kingdom CMC Markets Full-time

    ОписаниеCMC Markets is seeking a Senior Low Latency Java Developer to join our Quantitative Strategies team within Pricing & Risk, working on our high-performance, high-frequency trading platform. This is a hands-on role at the core of our market-making technology stack, where nanoseconds matter and engineering excellence is critical. You’ll design...


  • London, England, United Kingdom N Consulting Global Full-time

    Domain: High-Performance Computing / Low-Latency SystemsWe are looking for an experienced Java Developer with strong expertise in JVM tuning, concurrency, and low-latency system design to build and optimise high-performance, event-driven applications.The ideal candidate will have a strong understanding of Java internals, memory management, networking, and...

  • Java Data Developer

    5 days ago


    london, United Kingdom Quant Capital Full-time

    Tech: Core Java, JDBC, Kafka, HDFS, Docker, SQL, Multithreading Challenge: Greenfield Big Data Analysis Platform Development in FS Firm: Well-known Financial Data fintech50 business, City of London, 10 man flat Dev Team Pay: 85k, Options, training budget, Pension, Life / Health, Some Work from Home NO FINANCE EXPERIENCE NEEDED Core Java Developer Big...


  • london, United Kingdom Quant Capital Full-time

    Core Java Developer – Trading Contract Outside IR35 Open Budget Quant Capital is urgently looking for a Core Java Developer to join a well known trading firm. No experience of finance is needed, finance isn’t what this firm does, tech is. Our client is an innovative tech driven trading (Equities and ETF’s) company with a pioneering new concept for...


  • london, United Kingdom Quant Capital Full-time

    Java Developer Algo TradingLeading London-based trading firm has an outstanding opportunity for a Java Developer to join their Algo Trading Strategy team.This will be building out a brand new greenfield trading platform. You will be 1 of 2 developers for this project.Our client is a $200 million strong quant prop trading house with performance figures of...


  • london, United Kingdom Adaptive Financial Consulting Full-time

    WE ARE: At Adaptive, we are a financial consulting firm that partners with capital, commodity, and digital market participants. We value differentiation through technology. Our experienced teams design and deliver complex front-office technology solutions using our proven accelerators to create long-term competitive advantage. Our clients include the...


  • London, England, United Kingdom Salt Full-time

    Salt seeks a Senior Java Developer to design, develop, and maintain secure, scalable microservices on AWS. You’ll collaborate with platform engineers, QA, and product teams, following DevOps and security best practices. Hybrid role with 1–2 days on-site, starting ASAP for a 3–6 month contract.The role requires 5+ years of backend experience, strong...


  • london, United Kingdom Quant Capital Full-time

    Java / Scala Developer Quant is urgently looking for a Java / Scala developer to join our high profile client. Our client is a well known algorithmic trading broker based in central London. The environment is that of Facebook or Google, relaxed open with time to think and make the right decisions. The atmosphere is calm and relaxed with an open dress code....


  • london, United Kingdom Quant Capital Full-time

    Full Stack Java Developer – Fintech Up to 90,000 + bonus Quant Capital is urgently looking for a FrontendJava Developer to join a well known trading firm. No experience of finance is needed, finance isn’t what this firm does, tech is. Our client is an innovative tech driven trading (Equities and ETF’s) company with a pioneering new concept for the...


  • london, United Kingdom Quant Capital Full-time

    Core Java Developer – Quant Trading 90,000 Plus 10% to 40% Quant Capital is urgently looking for a Core Java Developer to join a well known trading firm. No experience of finance is needed, finance isn’t what this firm does, tech is. Our client is an innovative tech driven trading (Equities and ETF’s) company with a pioneering new concept for the...