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Java Developer/Contract/£400 Inside IR35/on site/Bournemouth About the Role: Design, develop, and maintain scalable microservices using Java and Spring Boot. Build and optimize Real Time data pipelines leveraging Apache Kafka, Flink, and Spark/Databricks. Develop robust data distribution and streaming solutions for high-throughput systems. Deploy, manage, and monitor services in containerized environments (Docker/Kubernetes). Write efficient and optimized SQL queries for relational databases. Integrate and manage applications in AWS cloud environments. Collaborate with cross-functional teams... more ->
Java Developer - Agile - Banking We are seeking an experienced Java Developer with solid banking and financial-services experience to join a growing, fast-moving engineering team. The role suits a technically strong developer who enjoys building new solutions, solving complex integration challenges, and taking ownership across the full development life cycle. Key Responsibilities Collaborate with senior Java engineers and Agile transformation teams to design, architect and deliver greenfield, brownfield and integration applications using best development practices. Apply sound technical... more ->
Senior Java Developer - AI first - sought by trading company based in London - Contract (OUTSIDE IR35 - Remote option available for outstanding candidates) What We're Looking For Backend Engineering Expertise 8+ years of software engineering experience with strong Java Back End skills. Proven track record in modernising production systems and designing APIs/microservices. Deep understanding of Legacy migration strategies and service decomposition. AI/LLM Implementation Skills Hands-on experience with AI development tools (eg, Claude Code, GitHub Copilot) and Model Context Protocol (MCP).... more ->
Seeking multiple Java Developers based in the South of England (East Sussex, West Sussex, Surrey, etc) for a leading business. Hybrid and remote working opportunities available with roles paying between £400pd - £550pd Dependent on experience. Please note - No sponsorship is on offer and being eligible for Security Clearance (SC) is essential, therefore you must have lived in the UK for the last 5 click apply for full job details more ->
We are looking for a Java Developer for one of our public sector clients. Rate: up to £600 per day (inside IR35) Duration: 6 months Location: UK, remote working For full details regarding this Java Developer position, please apply here and we'll be in touch more ->
The Race to Zero: Senior Java Low-Latency Engineer (Fixed Income) 6 months Contract London Hybrid Role Competitive daily rate. Our client "A premier global electronic trading Powerhouse" is looking for a Java Specialist to lead a mission-critical shift in their E-Fixed Income (eFI) architecture. They aren't just looking for a "developer"-we need a systems artist who understands that in this world, latency is the only metric that matters.The Tech Stack The Core: Low-latency Java (Mechanical Sympathy, Memory Tuning, GC Avoidance). The Connectivity: TransFICC specialization, TCP/UDP,... more ->
Must have Government experience My client are looking for an experienced Java Developer with strong expertise in AWS and Spring Boot to join our engineering team. You'll play a key role in designing, building, and maintaining scalable, secure, and high-performance applications within a cloud-native environment. Essential Skills & Experience: Java AWS Spring Boot more ->
Tecknuovo is a deliberately different digital consultancy, delivering secure, modern solutions while upskilling client teams to ensure zero long-term dependency. We are seeking an SC-cleared Java Developer to support a central government digital programme , working on Java and Spring Boot applications hosted on AWS.The role focuses on maintaining and enhancing production-grade services, embedding secure-by-design and zero-trust principles, and collaborating closely with DevOps, Application Support, and business stakeholders to ensure stability, resilience, and operational excellence within... more ->
Contract Java Developer (AI-Powered) Location: 5 Days p/w Onsite - Birmingham Duration: 12-Month Contract IR35: Outside IR35 Rate: £550p/d - £650p/d Opus is partnering with a financial services business to work on a new workflow reporting platform and data sourcing. They are looking for a Java Contractor that has commercial experience using AI Coding Tools. Required Skills & Qualifications Java AWS Commerical Experience using an AI Coding Tool such as (DevinAI, Cline, SWE-Agent, Devika, Cursor, Github Copilot, Windsurf) Interested? Click apply if you are interested in this position or email... more ->
Senior Java Developer Contract - Analytics/Risk/PnL/Caching/AWS/PostgreSQL/Kafka/TDD Our leading investment banking client is looking for a Senior Java Developer to join them on an initial 12 month contract. Skills Required Derivatives, risk management and trading, market risk Market Data Financial Market exp Investment Banking development experience Java 17+ dev experience Apache Kafka Postgre SQL Contract - Central London based - flexible working - paying market leading rates By applying to this job you are sending us your CV, which may contain personal information. Please refer to our... more ->
Job Title: Lead Java Developer Rate: £572 (Inside IR35) Duration: 6 months Location: Remote - One Day Onsite in Manchester per week Clearance: BPSS Stages: 1 Stage Must have hands-on experience with Azure , Java , API & system integrations , Back End development , and microservices architecture.Key Responsibilities Lead the design and development of scalable Java-based Back End services Provide technical leadership and guidance to development teams Design, build, and maintain microservices architectures on Microsoft Azure Develop and integrate RESTful APIs and support complex system... more ->
Inside IR35 £570 Hybrid - 1 day per week in Manchester Public Sector Project 6-12 Months Overview We're looking for an experienced Lead Java Developer to join a major public sector digital transformation programme. You'll lead technical delivery across complex Java-based services, guide engineering teams, and ensure best-practice development aligned with GDS standards. Key Responsibilities Lead end-to-end development of scalable, secure Java services within a multi-team environment. Provide technical leadership, mentoring and direction to Java engineers. Work closely with architects, product... more ->
I am working with a consultancy feeding into the public sector looking for 2x SC preferable Java developers. Inside IR35 £400 per day Start date - immediate End date - 29th April 2026 Active SC preferred TDD and BDD. Java 21 (or later). Microservice architectures. Agile environment activities Pair programming environment activities. Implementing APIs for internal and external use. Build a useful, robust automated test suite to support a continuous deployment environment. Communicate technical concepts to a non-technical audience. Using Unix-like operating systems such as Linux and/or Mac OS... more ->
Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. Role: Senior Java Developer Duration: 12 Months Location: Welwyn Garden City (2 to 3 days in office) Rate: £700 inside umbrella As a Senior Java Developer, you will be a vital contributor to our... more ->
Software Engineer -Java (Hands On) Hybrid Working - London or Bristol - 2 days a week on site. Financial Services Lorien's leading banking client is looking for several Java Software Engineers to become part of an expanding team working on 2 major projects that are going through an infrastructure upgrade. The ideal candidate will have strong hands-on skills coding with Java, with experience of working on large scale infrastructure. This role is based in London or Bristol. This role will be Via Umbrella. Working in a Hybrid Model of 2 days a week on site. Key Skills and Experiences Experience... 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 ->
I am currently working with a London-based investment bank who are actively seeking a Senior fullstack Java Developer to work on the development of a business-critical application within the FX space. What you'll need to succeed: Extensive fullstack Java and React experience within financial services - Mandatory click apply for full job details more ->
Essential Skills: Strong experience with Java (Java 8+), Spring Boot, and microservice architectures. Experience building RESTful APIs and integrating with third-party services. Familiarity with cloud platforms (AWS or Azure). Experience with CI/CD pipelines and DevOps tooling (GitHub Actions, Jenkins, GitLab CI, Azure DevOps). Strong understanding of relational and NoSQL databases. Experience with automated testing frameworks (JUnit, Mockito, RestAssured). Understanding of Agile delivery and multidisciplinary team working. Knowledge of secure coding practices and government security... more ->
Design, develop, and maintain Back End applications using Java and Kotlin Build and consume RESTful APIs and Microservices Collaborate with product owners, architects, and cross-functional teams Write clean, maintainable, and well-tested code Perform code reviews and ensure adherence to best practices Troubleshoot production issues and optimize application peformance Required Skills: Strong experience in Core Java (Java 8+) Hands-on experience with Kotlin for Back End development Solid experience with Spring/Spring Boot Good understanding of Microservices architecture Experience with... more ->
Full stack Engineer This application is a suite of microservices used to manage outreach to customers for information, authorisations etc. The team is distributed across China, India, Poland and the UK. The role involves modernising aspects of the application and expanding it to support additional customer types, customer journeys and new functionality. In this role, you will: Be hands-on, delivering code to production, supporting the architecture and design of the system aligned to a microservice structure. Be expected to have an awareness of business, engineering and non-functional... more ->