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Java Developer - London - £400-420/day (Java, Azure, GraphQL, Kafka) We're working with an industry leading consultancy client that are looking for a proficient Java developer to join them for a an initial 6-month contract to help with one of key clients. This person will be tasked with working alongside their existing team as part of an ongoing transformation. Technical requirements - - Java - Azure - GraphQL - Kafka This role will require this person to be on site 3 days per week in Paddington. This role will also fall outside IR35. If you're available in the next few weeks then please... more ->
Java Developer Crypto Exchange Connectivity (Low Latency) Location: Home Based/1-2 days per month in London Salary: Circa £180,000 £200,000 + bonus + benefits Java Developer required for a small trading technology firm focused on crypto markets, working directly on exchange connectivity and low latency trading systems Youll be working directly on live trading systems, solving real-world problems a click apply for full job details more ->
Java UI Developer - Real-time Defence Systems Farenborough, Surrey - 5 days onsite £70,000-£85,000 + benefits UK Passport required - eligible for MOD clearance Standard 8 is recruiting a Java UI Developer for an engineering team building real-time, high-data systems used in live operational environments. This is not web apps. It's performance-heavy software, complex GUIs and systems that have to work first time. The Job You'll join an experienced Java team developing desktop applications for data-intensive, mathematically heavy systems. Day to day: Building Java applications with React or... more ->
Java Tech Lead/Developer is required to join a small, specialist, founder-led SaaS software company building a data discovery, automated data consolidation and analytics platform used across the construction and engineering sectors. The product helps organisations bring together complex data from multiple sources to track costs, improve project visibility and identify potential fraud or irregularities across large-scale projects. This is a senior, hands-on role within a small, collaborative UK- and Canada-based team, currently comprising two developers, so you will have strong all-around... more ->
Role: Java Backend Developer with Microservices Type: PERM Location: Burgess Hill, UK Working Model: Hybrid (3 days per week in office) Salary: 65K - 70K The Role: Build, troubleshoot, deploy, and scale high-quality software using distributed enterprise frameworks. Mandatory Skills: Up to 5 years of experience. Strong knowledge of Java (8+), Microservices, Spring Boot, Kafka, and SQL/NoSQL databases is required. You should also be familiar with TDD, CI/CD, and version control (GIT). Bonus Skills: Experience with GoLang (1+ year), Cloud computing, VertX, high-availability caching, and Agile... more ->
This is a fantastic opportunity to work as a contract Java Developer on a remote basis, inside IR35 for the public sector. Current SC Clearance that has been used in the last 12 months and recent Identity Access Management experience are essential. The key experience required for this Java Developer position are: SC Cleared Identity Access Management Java Azure If you do have the relevant experience fo click apply for full job details more ->
Our client is a global consultancy currently delivering a project and is seeking an experienced Java Developer to join on a contract basis. Key Skills: Strong Back End engineering - Core Java 8+, Spring Boot, REST APIs, Multithreading, and scalable microservices design. Database & performance expertise - Advanced SQL with PostgreSQL and Sybase, query optimisation, and low latency transactional systems. Cloud & delivery capability - GCP (GKE, GCS, Cloud SQL), CI/CD with Git & Maven, plus testing using JUnit and Mockito. Contract Details: This position will be paying up to £600 p/day (Inside... more ->
Our client are a global consulting firm, working on a project in the Banking space, they are on the lookout for a Java Developer to come in on a contract basis. Key Skills/Requirements: Core Java (8+), Spring Boot & REST APIs experience SQL experience with Sybase & PostgreSQL GCP Experience Unit & Integration Testing experience Multithreading & concurrent programming Contract is running until the end of 2026 initially, paying up to £600pd (Inside IR35 via Umbrella) and will be 3 days per week onsite in London. more ->
Senior Java Developer - Financial Services, Capital Markets sought by city based organisation. Essential. 7+ years Java development experience in Financial Services, Capital Markets. Clear progression to Head of Engineering role within 12 - 24 months. Strong expertise in Java 11+, Spring/Spring Boot. Experience with multi-threading, performance tuning, profiling. Knowledge of microservices architectures. Strong understanding of CI/CD pipelines (GitHub, Azure DevOps, Jenkins). Experience with Git, Maven. Proven use of TDD, Agile, automated deployments. Strong experience with testing frameworks... more ->
Senior Java Developer Role - Minimum 6 years exp - Defence Sector - All Candidates must have a UK Passport to satisfy Government/MoD security vetting procedures - 5 days Onsite in Guildford based office - £50,000 - £85,000 + benefits (DOE) Essential Exp: Java, GUI Development using Java Fx or Java Swing, Linux G click apply for full job details more ->
Lead Java Application Developer - Java & Web Technologies - SC CLEARED Rate: £420 per day (umbrella rate) Location: Remote Onsite: London/Manchester (when required by the client) Atrium EMEA are supporting a large managed service provider, looking for an experienced Lead Java Application Developer to lead the design and development of modern, scalable Java applications in secure, enterprise environments. Key Skills & Experience. Strong experience leading Java development teams. Hands-on development of Java microservices. Expertise in microservices architecture. Proven experience migrating... more ->
Back End JAVA ENGINEER Location: Hybrid - Brighton, Burgess Hill (3 days/week). MUST HAVE FULL RIGHT TO WORK IN THE UK - SPONSORSHIP IS NOT PROVIDED.* Overview This role focuses on building and maintaining Back End microservices using modern Java (17+) and event-driven architectures powered by Kafka. The position involves working across distributed systems, REST APIs, CI/CD pipelines, and containerised cloud-native environments using tools like Docker and Kubernetes. Required Skills & Experience 4+ years of professional Experience in Java development Strong Experience designing and building... more ->
AI Engineer & Java Developer - Fintech/Challenger Bank, LTD CO OUTSIDE IR35, 6 months, London Hybrid Our Fintech Banking Payment Service client based in London seeks a proactive, hands-on AI Engineer with Claude or Codex & Java Developer with solid expertise in Claude or Codex AI Tooling, Agentic AI, Java Development using Spring Boot within a Fintech Challenger Bank setting. The ideal candidate MUST HAVE previous experience working in a startup/scaleup Fintech Financial Services environment. Any ISA product implementation/integration experience is an advantage but not essential. AI skills in... more ->
Java Backend Developer (Booking & Messaging) Rate: £625/day (Inside IR35) Duration: 6 months Location: London (Hybrid) The Role Join a high-performance eBond Booking and Messaging team managing a complex trading platform. You will build and adapt trading workflows, ensuring seamless connectivity to external exchanges and managing trade booking systems. The environment features a modern microservices architecture, reactive programming, and a fully automated CI pipeline with weekly releases. Technical Profile Java Expert: Java 8+, Multithreading, and RESTful Webservices. Messaging Pro: Deep... more ->
Java Backend Developer (Booking & Messaging) Rate: £625/day (Inside IR35) | Duration: 6 months | Location: London (Hybrid) The Role Join a high-performance eBond Booking and Messaging team managing a complex trading platform. You will build and adapt trading workflows, ensuring seamless connectivity to external exchanges and managing trade booking systems. The environment features a modern microservices architecture , reactive programming, and a fully automated CI pipeline with weekly releases. Technical Profile Java Expert: Java 8+, Multithreading, and RESTful Webservices. Messaging Pro:... more ->
Full Stack Developer - Active SC, NPPV3, Java Up to £425 per day - Inside IR35 Remote 12 months My client is an instantly recognisable consultancy who require a Full Stack Developer with Active SC and NPPV3 clearance for a client within the public sector. Key Requirements: Proven commercial experience working as a Full Stack Developer within the Public Sector. Active SC and NPPV3 Clearance. Senior-level expertise in either Java/Spring (Boot, Data JPA, Security) or JavaScript/TypeScript with React; mid-level experience acceptable in the other Proven experience delivering high-quality,... more ->
Contract Algo Trading Java Developer - eTrading, low latency, Java APIs, Multithreading, FIX 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. The team provides innovative solutions for low touch, low latency trading, which includes FIX connectivity, low latency market connectivity, smart order routing, algorithmic trading and internal crossing. The requirement is for a core Java developer. The team is working on a number of algorithmic engines that support... more ->
Senior Backend Java Engineer (SC) Location: Fully Remote Contract: 6 months IR35 Status: Inside IR35 We are currently seeking a Senior Backend Java Engineer with strong, recent hands-on experience in building, testing, and deploying production grade APIs and microservices. The ideal candidate must hold active Security clearance due to the time schedule of the project This is a coding-focused position suited to candidates who are actively involved in software engineering in their current or most recent role. It is not suited to those whose recent experience is primarily in support,... more ->
We are seeking a talented Java Backend Engineer to join a dynamic team. This role is focused on building high-performance, scalable software within a distributed enterprise environment. Location: Burgess Hill, UK (On-site 3 days per week is mandatory) Employment Type: Permanent/FTE The Role You will contribute to the full software development lifecycle-from design and debugging to deployment and monitoring. You will be responsible for building world-class applications that meet the needs of high-transaction business and customer-facing environments. Key Responsibilities Develop & Scale: Build... more ->