1 to 25 of 55 Permanent Java Developer Jobs in London

Senior Java Developer My customer is actively hiring a talented & eager Senior Java Developer to join their growing & dynamic team. The successful candidate will be responsible for designing, developing, and maintaining Java-based applications, contributing to the full software development lifecycle from concept to deployment … beyond. This role is ideal for a passionate and seasoned Senior Java Developer looking to further their career in a challenging and rewarding environment. Role Overview You will work on in-house systems, APIs, client reporting and web portal, as well as customising our third-party trading system. ...

global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. Accepting applications until: 28 August 2026 Job Description Your Role: Java Developer - Digital Out of Home Are you a Java Developer looking to be part of a team building cutting-edge, event … driven systems that power millions of digital advertising moments every day? As a Java Developer within our Digital Out of Home (DOOH) team, you'll help develop the programmatic advertising platform that powers all digital assets across Global's outdoor estate - from large roadside signs to the Transport ...

Java Developer - Public Sector - SC clearance required Java Developers needed who hold active SC clearance, to work on an exciting central government based project based out of London (95% remote role). As a seasoned Java Developer/Software Engineer, you'll have experience working … with: Central government transformation projects, ideally with GDS experience. Java backend development with microservices. Spring framework (Spring Boot) based web applications. AWS and/or Kubernetes. CI/CD mindset and an agile approach. A consultative approach to problem solving and solution building. You'll enjoy taking a collaborative ...

global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. Accepting applications until: 21 August 2026 Job Description Your Role: Java Developer As a Java Developer in the DAX engineering team, you'll be a key part of the group building … server platform. You'll help shape product decisions from inception through to deployment, taking ownership of technical initiatives and contributing to a great developer and user experience. You'll work with modern Java microservices (Java 21, Spring Boot), deployed on Kubernetes (EKS on AWS), using CI/ ...

Senior Java Developer | Up to £140,000 | London (Hybrid - 2-3 days on site) I'm currently recruiting for a Senior Java Developer to join a leading technology team within a global banking organisation based in London. This is an exciting opportunity to work on complex … enterprise applications, modernising existing systems, building robust APIs and helping shape technical solutions within a large-scale environment. We're looking for a strong Java and Spring Boot developer with experience building enterprise-grade applications, working with microservices architectures and delivering secure, reliable software solutions. Banking or financial ...

global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. Accepting applications until: 7 August 2026 Job Description Your Role: Java Developer The Commercial Technology team develop and maintain the products that drive the commercial revenues at Global for both the Radio and Outdoor … parts of the business. In this role, you will work closely with a suite of microservices developed using Java 17+ (mostly Java 21) and Spring Boot, of which some will be event-driven. You will contribute towards the technical lifecycle of these services, including the CI/ ...

Description \n Contract Algo Trading Java Developer - eTrading, low latency, Java APIs, Multithreading, FIX \n Our Investment Banking client is looking for an Algo trading Java developer to join the team to work on new initiatives and support for business critical algorithmic trading engines. … trading, which includes FIX connectivity, low latency market connectivity, smart order routing, algorithmic trading and internal crossing. \n The requirement is for a core Java developer. The team is working on a number of algorithmic engines that support benchmark algos, smart order routing and internal crossing. \n The main ...

Java Developer at Barclays Join us as a FX Java Developer where you will be handling a large number of requests for a foreign exchange application, specifically, building a high-performance, low latency electronic trading, pricing, and risk management systems. To be successful in this role … will need: Demonstrable java development experience within FX application or domain Multithreading, scalable, and low latency application development Oracle – PL/SQL queries GIT CI/CD Other highly valued skills React KDb Telemetry You may be assessed on key critical skills relevant for success in role, such ...

looking for an experienced Senior Java Developer to join a growing engineering team building cutting-edge post-trade technology solutions within a cloud-first environment. This is an opportunity to work on business-critical applications, APIs, client reporting platforms and web portals while customising sophisticated trading systems used … designing and delivering enterprise-grade software while contributing to architectural decisions, development standards and engineering best practice. Responsibilities include: Designing, developing and enhancing Java-based applications, APIs and web platforms Customising and extending third-party trading systems Building scalable microservices and distributed applications Writing clean, maintainable, test-driven code ...

Senior Java Developer Hybrid UK | Permanent Leading financial services firm seeking a Senior Java Developer to build and enhance critical Back Office, Middle Office, Settlements, Clearing and Prime Brokerage platforms. Required Skills Java 11+, Spring Boot, Microservices Multi-threading, performance tuning REST APIs, distributed systems ...

## Senior Fullstack Developer — Java or Kotlin, React and TypeScriptApplylocations: London: Manchestertime type: Full timeposted on: Posted Todayjob requisition id: JR100892Founded in Switzerland in 1968, Zühlke is owned by its partners and located across Europe and Asia. We are a global transformation partner, with engineering and innovation … chance to do it on a global scale and play a real role in shaping our exciting journey.**The role**As a Senior Fullstack Developer, you will be a hands-on member of a high-performing engineering squad, building and operating business-critical digital services.This is a backend ...

platform for the LGBTQ+ business community. Please do not contact the recruiter directly. Accepting applications until: 28 August 2026 Job Description Your Role: Senior Java Developer We're looking for an experienced backend engineer with a passion for technical excellence and improving user experiences. You'll join … delivery at scale. This role is based in our Holborn office with hybrid working as part of our Smart Working approach. As a Senior Java Developer at Global, you will: Work across the full lifecycle of our ad-serving products, from discovery and design through to delivery ...

Java Quantitative Developer London – Hybrid Java, Low Latency, Algo Trading, Pricing, Hedging, FX/Crypto, DeFi, AWS The company This is an unmissable opportunity for an experienced Java Quantitative Developer to join the crypto trading desk of one of the leading institutional digital asset firms … markets. Build pricing logic and hedging frameworks that drive the desk's market making activity. Translate trader and quant ideas into efficient, production-grade Java code. Optimise existing trading systems for speed, reliability and scalability. Integrate new data sources and ensure data integrity for accurate model input. Monitor ...

Role: Front Office Java Developer Client: Elite Investment Institution Compensation: Up to £130k Base Salary + Bonus + Package Location: London (Hybrid) Overview This firm is an elite investment institution that uphold extremely high tech standards. They are made up of exceptionally talented individuals who are passionate about … Role They will align you with the best team suited to your skillset and interests. You will be working with the latest versions of Java (ideally up to version 21), directly with traders and quants to build high performance pricing and analytics tools from scratch. This is a greenfield ...

employer and a member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. Job Title: Java Fullstack Developer (with Camunda) About the Job you are considering: We are looking for a highly skilled Java Fullstack Developer Developer with strong expertise in workflow orchestration and full-stack development. The ideal candidate will have extensive experience in Camunda, Java-based backend technologies, and React-based frontend development. You should be passionate about building scalable, high-quality applications using modern engineering practices like TDD and CI/CD. ...

# Sr. Java DeveloperDeveloperLondonAugust 20, 202588400 - 98700/monthFull TimeApplication ends: **May 12, 2026**Apply Now### Job DescriptionA Sr. Java Developer is responsible for designing, developing, and maintaining high-quality Java applications. They collaborate with cross-functional teams to deliver scalable and efficient solutions, troubleshoot complex … capabilities, and staying updated with emerging technologies are essential for driving innovation and ensuring seamless application performance.### Key Responsibilities* Design, develop, and implement complex Java-based software solutions effectively.* Collaborate with team members to define project requirements accurately.* Optimize application performance for scalability, security, and efficiency consistently.* Troubleshoot ...

Senior Java Developer - BSS/OSS - HYBRID We're looking for an experienced Senior Developer to join a Software Engineering team delivering enterprise-scale solutions. This is a hands-on role where you'll design, develop and enhance high-performance applications while collaborating with architects, project managers … Produce technical documentation and promote development best practices. Mentor junior developers and provide technical guidance. Skills & Experience Essential Extensive experience developing enterprise applications using Java . Strong knowledge of Spring Boot and J2EE . Experience building RESTful APIs , Microservices , and working with Kubernetes or OpenShift . Strong SQL skills ...

## Lead Java DeveloperApplyremote type: Hybridlocations: London United Kingdomtime type: Full timeposted on: Posted 30+ Days Agojob requisition id: 26949717**Discover your future at Citi**Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated … work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech.The Lead Java Developer is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology ...

Manila, and Montreal, we have a proven track record of delivering powerful, elegant, and intuitive trading technology solutions. We are now looking for a Java Developer to provide services on an exciting project! The service provision will require: Solid JVM skills with strong design patterns. Ability to solve … complex technical challenges, especially in cloud-based environments and by using event driven architecture patterns. Experience of the Fintech industry YOU HAVE: Experience in Java, Spring, Cucumber, JUnit, GitHub, Fix Protocol Significant professional server-side software development experience General familiarity with data structures such as sets, hashes, caches ...

chance to do it on a global scale and play a real role in shaping our exciting journey. The role As a Senior Fullstack Developer, you will be a hands-on member of a high-performing engineering squad, building and operating business-critical digital services. This is a backend … fullstack role. You will use Kotlin or modern Java, ideally Java 17 or later, together with the wider JVM ecosystem, to develop reliable services, APIs and event-driven workflows. You will also contribute to modern web interfaces using technologies such as React and TypeScript. You will work ...

Basic information LocationLondonBusiness LineTechnology & TransformationJob TypeContractDate published02-Jul-2026Req #23986 Job description Job Title: Java Developer (FX Trading) - contract Location: London Hybrid. Travel to the London office on 2-3 days a week Duration: 6 months (with potential to extend) Contract Start Date: ASAP *note client onboarding takes … projects within the firm that suit your experience should you wish to continue with the company. The Role We are looking for an experienced Java Developers to work in the Technology and Transformation Team at the company. You will support the FX trading platforms with one of our global ...

driven and skilled individuals to join one of the fastest-growing consultancies globally. Job Description We are seeking an experienced Senior Full Stack Java Developer to join our UK Digital & Cloud Practice. Our Digital Practice is expanding rapidly and there will be an opportunity for you to achieve …/DRY principals Hands-on developing/coding role using the following technologies: Frontend (JavaScript/TypeScript or Angular or React or Node) Backend (Java, SpringBoot, Hibernate, Kotlin) Experience in estimation and sizing Integration experience API Design experience Cloud experience Appetite to work with emerging AI technologies SC Eligible ...

Global technology & software product company operating in the observability and monitoring space, is looking for a Senior Java Software Engineer to join their Platform Team in London . You'll help build the distributed services that sit at the core of their product, ingesting and transforming data at scale … week in the office, with flexibility considered. What you'll be doing Design and build distributed services from the ground up, working with core Java rather than solely relying on heavy framework usage. Develop event-driven systems using Kafka and event-streaming frameworks at scale Orchestrate deployments on Kubernetes ...

Hopeghospital in Greater London is seeking a Senior Java Developer to design and maintain high-quality Java applications. The role involves collaborating with cross-functional teams to deliver scalable solutions, optimizing performance, and mentoring junior developers. Candidates must have strong proficiency in Java, Spring, Hibernate ...

Gravitas Group is seeking a Senior Java Developer to build and enhance back office, middle office, settlements, and prime brokerage platforms in a hybrid UK environment. You will work on scalable microservices, REST APIs, and data-intensive services within a financial services framework. The role requires expertise … Java 11+, Spring Boot, TDD/BDD, and distributed systems, with strong stakeholder engagement skills. Hybrid work is available with onsite presence three days per week. #J-18808-Ljbffr ...