java application developer jobs in London

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of approximately 219,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview Job Description About Citi As the world's most global...

Salary: £30,000 - 50,000 per year Requirements: Core Java skills, including object-oriented programming, collections, exception handling, and concurrency Experience building and deploying event-driven and RESTful APIs Foundational knowledge of SQL and relational database design Hands-on experience with Linux-based server environments Scripting experience...

Core Java Developer Fintech High Freq Trading – 80,000 + bonus and benefitsQuant Capital is urgently looking for a Core Java Developer to join our high profile client.Our client is a well known specialized High Frequency FX Prop Trading firm.Their platform is based on distributed low latency systems involving complex multi-threading where performance is...

NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization. Location: London, Hybrid 2 days a week from Office Role Summary We are seeking an experienced Java Backend Developer to design, develop, and support scalable enterprise...

# Java Backend Developer,November 30, 2025### Job Description**On behalf of our client, we are seeking a Java Backend Developer – London, UK (Full-Time Permanent Role).**Our client, a fast-growing technology organisation, is looking for a skilled Java Backend Developer to build secure, scalable backend services and high-performance APIs supporting modern...

A leading financial technology environment is looking for a Senior Java Low-Latency Developer to join a 12-month contract in London, working hybrid three days a week. You'll be part of a global engineering function delivering technology where performance, resilience and reliability are critical.The role focuses on building and enhancing high-performance...

Core Java Developer– JVM, Multithreading, TDD, SpringQuant Capital is urgently looking for a Core Java Developer to join our high profile client.Our client is a well known high frequency low latency trading platform provider. No experience of finance is needed.The Java developer will be responsible for product development and client projects through in...

**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...

A leading financial technology environment is looking for a Senior Java Low-Latency Developer to join a 12-month contract in London, working hybrid three days a week. You'll be part of a global engineering function delivering technology where performance, resilience and reliability are critical. The role focuses on building and enhancing high-performance...

We are looking for Java developers, from experienced seniors to hands-on principal engineers, to join long-term greenfield projects with a leading financial institution in London. You will be part of small, high-calibre engineering teams delivering strategic rebuilds and modernisation projects, replacing legacy systems with clean, cloud-aligned solutions...

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...

MORELA Application Developer AI Applications & Power BI | Holborn, LondonMorela is proud to be supporting a London-based AI analytics business in the search for an Application Developer. This is a permanent role based at the client's office in Holborn, Central London, four days a week (Monday to Thursday), with a salary of£75,000plus benefits. Candidates...

Fullstack Java Developer2026-09-18T00:00:00LondonGreater LondonGBEC2V 8Any2026-12-17T07:02:20.303hackajob is partnering directly with Atos to hire for this role. Atos is the Atos Group brand dedicated to AI-powered, secure, end-to-end digital services. Atos designs, develops, and operates critical digital environments that drive performance, resilience and...

About Us: Based in San Francisco, California, Turing is the world's leading research accelerator for frontier AI labs and a trusted partner for global enterprises deploying advanced AI systems. Turing supports customers in two ways: first, by accelerating frontier research with high-quality data, advanced training pipelines, plus top AI researchers who...

Salary: £? - ? per year Requirements Strong hands-on experience configuring infrastructure and applications with Ansible Solid Python capability and practical AWS cloud experience Experience working with GitLab pipelines Confidence with UNIX administration, including Bash scripting and RHEL environments Experience with Behave/Cucumber for...

LMAX is renowned for its high-performance, ultra-low latency (we measure in microseconds) exchange written in core Java. We constantly push technology further than most, especially in our greenfield projects, driving the financial industry in new directions. Developers are encouraged to constantly develop and learn new skills. Pair programming supports...

Job TitleApplication Engineer (Angular, Java)The RoleYou'll be joining the Europe FAS engineering team responsible for building the digital capabilities that power client onboarding across Vanguard Europe. The team creates automated, seamless experiences that make it easy for FAS clients to do business with Vanguard, from prospect journeys and lead...

Transport Planner – Development Planning & Planning ApplicationsCambridge £65,000-£72,500 PA DOE About the RoleWe are seeking anexperienced Transport Plannerwith a strong understanding of theUK town and country planning systemand demonstrable experience in supporting land and property development projects through the planning process, from initial...

Join EPAM as a Java Developer in a hybrid role based in London. Work on complex, data-intensive systems while collaborating with multi-national teams across the globe. You'll architect innovative solutions, mentor talented developers and lead technical initiatives using cutting-edge technologies. This is an excellent opportunity for a seasoned professional...

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,...