1 to 25 of 34 Contract Java Developer Jobs

Job Title: Java Developer (Kafka, AWS, React) Location: London, Hybrid Type: Contract 6 months DRC: inside Ir35 About the Role We're looking for a passionate and skilled Java Developer to join our dynamic engineering team. You'll be working on scalable, event-driven systems using Apache Kafka, deploying microservices on AWS, and collaborating with front … end developers using React. Key Responsibilities Design, develop, and maintain Java-based microservices. Build and manage real-time data pipelines using Apache Kafka. Deploy and monitor applications on AWS (EC2, Lambda, S3, etc.). Collaborate with front-end developers to integrate APIs with React applications. Participate in code reviews, agile ceremonies, and continuous improvement initiatives. Tech Stack Backend: Java … Frontend: React, TypeScript Cloud: AWS (ECS, Lambda, S3, CloudWatch) CI/CD: GitHub Actions, Docker, Terraform Databases: PostgreSQL, DynamoDB What We're Looking For 3+ years of experience in Java development. Hands-on experience with Apache Kafka in production environments. Strong knowledge of AWS services and cloud-native architecture. Familiarity with React and modern JavaScript/TypeScript. Excellent problem More ❯

Job Title: Senior Java Developer Day Rate: Via Umbrella Length of Contract: 6 months (huge potential for extension) Location: Bromley Hybrid (3 days onsite) About client: One of the largest financial institutions in the U.S., it serves millions across consumer banking, investment, and wealth management. Headquartered in North Carolina, it plays a pivotal role in global finance. Role … Overview: We are seeking an experienced Senior Java Developer with a strong background in the banking and financial services sector, particularly in corporate and commercial payments/deposits. The ideal candidate will play a key role in designing, developing and supporting robust, scalable applications, working within Agile delivery teams. Responsibilities: * Design, develop and maintain Java-based applications … required* Work both independently and collaboratively within Agile teams* Produce clear, well-documented code and technical documentation* Communicate effectively with stakeholders at all levels Skills & Responsibilities: * Strong proficiency in Java development, with experience spanning Java 11+ through to the latest versions (Java 24)* Solid experience with Spring Boot and microservices architecture* Hands-on experience with OpenShift or More ❯

Java Developer Join a highly skilled team at the heart of a global financial technology infrastructure! A leading investment bank in Glasgow is seeking a talented Java Software Engineer to contribute to a mission-critical Application Delivery and DNS/DHCP platform, used by thousands of internal customers across a global organisation. Paying up to £480 per … their Glasgow office (hybrid working). As part of an Agile squad, you'll work with modern CI/CD workflows to design and build high-performance tooling using Java and Python, enabling scalable, automated infrastructure delivery. This is a fantastic opportunity to work on projects involving Infrastructure as Code, ultra-low-latency systems, and cloud-like hosting services. … What You'll Do: Develop new features and tooling in Java and Python to support a global infrastructure platform Automate provisioning and control of infrastructure to enable on-demand environments Integrate with internal platforms and APIs to support customer onboarding Drive adoption and automation in collaboration with operations and infrastructure teams What We're Looking For: Required: Solid Java More ❯

Contract Java Developer - High-Growth Fintech Location: Leeds, Hybrid Rate: £500 - £550 p/d OUTSIDE Duration: 6 months Fruition Group are working with an exciting fintech scale-up that's transforming the way people manage their savings. The company provides a digital platform that connects savers with a wide range of competitive cash savings products, while also … s an ideal opportunity for someone who enjoys building backend services in a product-focused environment and wants to have a genuine impact as the platform scales. Tech Snapshot: Java (with Micronaut or Spring Boot) PostgreSQL Event-driven & service-oriented architecture Infrastructure: Docker , Kubernetes Cloud: AWS Some frontend exposure (React) is useful but not essential Modern DevOps practices and …/w in Leeds or London offices) with a strong and collaborative team culture Clear technical leadership, a modern stack, and freedom to innovate If you're a senior Java engineer looking to join a genuinely exciting fintech at a key growth stage-and you want your work to matter-this could be the right move for you. Apply More ❯

Full Stack Java React Developer - JP Morgan - Glasgow - 6 months contract - ONSITE - PAYE *Unfortunately we are unable to provide sponsorship for this contract opportunity but should this role convert to permanent in the future this might be a possibility* We are seeking a highly skilled and motivated Full Stack Java React Developer to join our JP … a huge impact as we embark on an exciting journey to scale out and modernise our core applications, and deliver more for our business stakeholders. As a Full Stack Java React Developer at JPMorgan Chase within Risk Technology, you will be part of an agile team that works to enhance, design, and deliver the software components in faster … equity, inclusion, and respect Required qualifications, capabilities, and skills Formal training or certification on software engineering concepts and applied experience Hands-on practical experience in full-stack development with Java, React JS, Spring Boot and Micro-services architecture Hands-on practical experience in public cloud technologies and CI/CD - AWS, Docker, Kubernetes Hands-on practical experience across the More ❯

Java Developer - Full Stack (Java 21/React.js) Location: London (Hybrid - 3 days onsite) Contract: 6-Month Contract with high potential for extension (Inside IR35 via Umbrella) Day Rate: Competitive Client: Our client is a leading global financial institution with a strong presence in capital markets. They offer a stable, collaborative environment with a focus on trading … management, and derivatives. The firm combines global reach with innovative technology to support its front-office operations You'll play a key role in building full-stack solutions using Java 21 and React.js, collaborating closely with traders, risk managers, and quant teams in a dynamic and fast-paced environment. What You'll Do: Build robust front-to-back trading … and risk systems using Java 21 and React.js Work across teams (Trading, Risk, Quants, DevOps) to deliver scalable solutions Focus on performance, maintainability, and reliability from day one Enhance CI/CD pipelines and development processes Support production environments (Level 3 support) What You Bring: Strong Java (streams, lambdas, concurrency) and front-end skills with React.js Deep knowledge More ❯

Job Title: Senior Java Developer Job Type: Contract ( Outside IR35 ) Rate: £450-550pd Project: Legacy Platform Migration and Modernisation Location: London (Hybrid) Start Date: ASAP Job Description We are seeking a Senior Java Developer to join a large-scale legacy platform modernisation project. This is a contract opportunity ideal for a hands-on engineer with … deep Java expertise and a passion for clean, scalable engineering. You will be part of a dedicated feature team responsible for the conversion and migration of legacy applications, working closely with stakeholders to design and deliver robust, cloud-based solutions. This role combines strong practical software engineering and a sharp focus on quality and performance. Key Responsibilities Work on … end-to-end migration of legacy application repositories. Design and build scalable, high-performance solutions using Java and Spring Boot. Execute modernisation strategies aligned with business needs. Collaborate with cross-functional teams and mentor junior developers. Troubleshoot technical challenges and ensure timely, quality delivery. Requirements Proven experience as a Java Developer with knowledge of Spring frameworks. Strong More ❯

Senior Full Stack REACT/Java Developer Contract. My client a leading global name is in urgent need of a talented and experienced Senior Full stack engineer (REACT Java Springboot). My client is looking for a Developer with strong experience in React, Angular and Java and spring applications. As part of their agile and … asynchronous request handling. You will have experience with continuous integration/continuous deployment (CI/CD) pipelines.Strong understanding of version control tools (e.g., Git). Strong working experience with Java programming. If this sounds like an interesting role please drop me a CV so that we can speak in more detail. More ❯

Java Software Engineer - Python - Glasgow - Hybrid (3 days onsite) I'm working with a well known client in Glasgow looking for an experienced Java Developer to join their team. You'll play a key role in developing and maintaining tools that support their internal applications and services team, particulary their inhouse Application Delivery Controller (ADC) and DNS …/DHCP platforms. Working in an Agile squad with a DevOps mindset, you'll help build scalable, automated solutions using Java and Python, contribute to Infrastructure as Code initiatives, and work with engineering and operations teams to drive platform adoption. What you'll do: Build and enhance tools for a large-scale application delivery platform Automate deployment processes and … across the business to integrate services and improve performance Support key areas of the business including cloud-based hosting and low-latency environments What we're looking for: Strong Java development skills (Python a bonus) Solid understanding of networking and Linux system fundamentals Experience with CI/CD tools (e.g., Git, Jenkins) An automation-first approach and passion for More ❯

Galway - Must be Commutable Must have Stamp 4 or EU Passport Are you a passionate software engineer looking to make a real impact? We’re looking for a Senior Java Developer to join a highly dynamic, inclusive, and collaborative team working on strategic initiatives within a fast-paced environment. About the Role As a Senior Software Engineer, you … help deliver top-priority goals, drive innovation, and champion high standards of quality, transparency, and teamwork. What You’ll Bring 6+ years’ experience in software development Strong proficiency in Java and RESTful services Experience working independently on complex systems and contributing to broader team goals Experience with Cloud technologies like AWS and Azure (advantageous) Understanding of financial services (preferred More ❯

An instantly recognisable London-based financial services institution is actively seeking 2 Senior Java Developers with extensive banking experience to work on a business-critical project in the risk and pricing space. What you'll need to succeed 10+ years' Java Development experience within financial services - mandatory Good knowledge across a range of asset classes, ideally Fixed Income More ❯

An instantly recognisable London-based financial services institution is actively seeking 2 Senior Java Developers with extensive banking experience to work on a business-critical project in the risk and pricing space. What you'll need to succeed 10+ years' Java Development experience within financial services - mandatory Good knowledge across a range of asset classes, ideally Fixed Income More ❯

Java Developer Location: London (Hybrid - 3 days in office) Contract: 6 Months with huge potential for extension (Inside IR35 via Umbrella) Day Rate: Competitive Client: Our client is a leading global financial institution with a strong presence in capital markets. They offer a stable, collaborative environment with a focus on trading, risk management, and derivatives. The firm combines … global reach with innovative technology to support its front-office operations. A global financial institution is seeking an experienced Java Developer to join its Front Office Technology team. This role focuses on developing and supporting trading, risk, and analytics platforms, using Java 21 in a fast-paced, collaborative environment. Key Responsibilities: Develop and maintain front-to-back … pricing and risk solutions using Java 21 Collaborate with Front Office, Quants, Risk, and DevOps teams Prioritise non-functional requirements such as performance, reliability, and maintainability Improve development tooling, deployment pipelines, and overall engineering processes Provide level 3 support and contribute to operational excellence Essential Skills: Strong core Java development (streams, lambdas, concurrency APIs) Deep understanding of distributed More ❯

Senior Java Engineer - Azure Migration (Financial Services) Location: London (Hybrid - 1 day per week onsite) Rate: Up to £650/day (Inside IR35) Start Date: ASAP Engagement: Consultancy - Financial Services Clients Overview A leading consultancy is seeking a Senior Java Engineer for a high-impact Azure migration programme within financial services. This role involves lifting and shifting a … and deploying services in Azure, helping to modernise backend systems while ensuring reliability and performance in a regulated environment. Key Responsibilities Contribute to the lift-and-shift migration of Java-based applications to Azure Migrate and support services including the broker services portal, static data, integration layers, and authentication modules Ensure secure, scalable deployment using Azure cloud-native tools … Build and support systems using PostgreSQL, Java, and Spring Boot Integrate and monitor using observability tools like Datadog and BigPanda Collaborate closely with architects, DevOps, and security teams across the full SDLC Core Skills & Technologies Strong backend development in Java with Spring Boot Cloud migration experience, particularly Azure Lift-and-Shift Familiarity with cloud infrastructure and deployment pipelines More ❯

Java Microservices Developer 6 Month contract initially Based: Remote/Cardiff - Hybrid. Max 3 days p/w onsite. Rate: £450 - £500 p/d (via Umbrella company) We have a great opportunity with a world leading organisation where you will be provided with all of the support and development to succeed. A progressive organisation where you can … really make a difference. We a great opportunity for a number of Java Microservices Developers to join the team! We are seeking a number of talented Java Microservies developers to join our team for a new strategic transformation program of work. You will Design, Develop, and Maintain Microservices: * Creating and implementing microservices with Java. * Ensuring microservices are scalable … Automating testing and deployment processes to improve efficiency and reliability. Code Quality and Best Practices: * Writing clean, well-documented, and maintainable code. * Following coding standards and best practices for Java development. Participating in code reviews and providing constructive feedback to team members Key Skills & Experience: Programming: * Proficiency in Java and related technologies like Spring Boot. * Understanding of microservices More ❯

Role: SC Cleared Java/Kotlin Developer (Contract) Location: Remote (UK-based only) Clearance: Active SC Clearance required Rate: £500 to £525/day (Outside IR35) Contract Length: Until end of March 2026 We are looking for a hands-on Java/Kotlin Developer to support a long-running greenfield project within a central government department. … Essential Skills Strong experience in Kotlin for web backend development and/or Java Solid grasp of Spring Boot, REST APIs, Git, and CI/CD pipelines Exposure to TypeScript and modern front-end tooling Comfortable working in cloud-native environments (AWS/Docker/Kubernetes) Understanding of GDS principles Interview slots are available next week, so please register More ❯

Job Title: Senior Java Developer - Electronic Trading Location: London A leading global financial firm is looking for a skilled Java Developer to join their Electronic Fixed Income team. You'll help build and improve fast, reliable trading systems that connect to global markets. What You'll Do Develop and improve electronic trading systems with a focus … technology. Support and improve existing trading tools. Solve technical problems and boost system performance. What You'll Need Strong experience in trading systems, 5+ in eTrading. Strong skills in Java , multi-threading, and low-latency development. Good understanding of fixed income or FX trading . Experience with Linux , TCP/UDP , and performance tuning. Familiar with test-driven development More ❯

MERITUS Talent are working with one the most well known aerospace conglomerates globally, for the recruitment of a Java Developer to join their Defence & Space team into their Portsmouth office. The role is for an initial 6-12 month assignment, paying £55 per hour via umbrella, and ideally looking for the right person to hold an active SC … clearance. Contract Java Developer - Microservices/Agile £55 per hour (Inside IR35) 6 months+ | Portsmouth A leading organisation in the aerospace and space systems sector is looking for an experienced Java Developer to join a 7-person Scrum team. The project involves building management systems for a new satellite programme. You'll be contributing across the … architectural design (UML) Support CI/CD processes and automated testing frameworks Write clean, maintainable, and well-documented code Work closely with internal and external stakeholders Essential Skills & Experience Java (version 8+) Spring Boot and Spring Framework (inc. Hibernate) RESTful APIs over HTTPS Microservices and distributed systems Agile development (Scrum) CI/CD pipelines Git and Jira (or similar More ❯

E-Trading Fixed Income - Senior Java Developer | London (Hybrid) | 6-12 month contract We are partnered with a leading investment bank who is hiring a Java Developer with strong expertise in electronic trading systems to join their e-Fixed Income team in London. You'll play a key role in developing high-performance, low-latency trading … platforms and integrating TransFICC connectivity. We're looking for someone with extensive experience in the e-trading field and deep knowledge of Java , low-latency programming , and multi-threaded systems . You'll work closely with traders, quants, and analysts to deliver robust, scalable solutions. Key Requirements: Extensive experience with electronic trading is a must. Strong Java development More ❯

E-Trading Fixed Income - Senior Java Developer | London (Hybrid) | 6-12 month contract We are partnered with a leading investment bank who is hiring a Java Developer with strong expertise in electronic trading systems to join their e-Fixed Income team in London. You'll play a key role in developing high-performance, low-latency trading … platforms and integrating TransFICC connectivity. We're looking for someone with extensive experience in the e-trading field and deep knowledge of Java , low-latency programming , and multi-threaded systems . You'll work closely with traders, quants, and analysts to deliver robust, scalable solutions. Key Requirements: Extensive experience with electronic trading is a must. Strong Java development More ❯

days onsite Ext.JS and React experience is mandatory. Inside IR35 role. Java, extJS (older screens), React (some of the newer screens) & Oracle SQL would be the main skill set requirement. Must have experience on Java8, Springboot, Hibernate. Must have experience/Exposure on using advanced Java frameworks like spring Boot. Must be proficient with SQL. Must have experience More ❯

Java Developer Clearance required: Must hold SC and NPPV3 or be eligible for both Location: Croydon - onsite 2/3 days a week Job Description: What you'll bring:* Experience of Java.* Experience of Spring framework or equivalent.* Knowledge of software design patterns and when to apply them.* Excellent knowledge of development processes.* Experience of containerization using Docker More ❯

Java Developers- SC Security Clearance- Central Government Multiple Java Developers, ideally with current SC Security Clearance and strong Java software development skills in Java 11 plus and MongoDB is needed to work with our central government client on one of the UK's most high-impact digital services. Opportunity to take a hands-on technical and … leadership role at the heart of government digital transformation — influencing direction, engineering best practices, and helping deliver critical systems used by millions. Java Developers- SC Security Clearance- Central Government- Essential Skills • Strong hands on Java Software development skills to Java 11 or higher. • Excellent software engineering abilities across Java microservices, Hexagonal architecture, MongoDB, Kafka) • Modern cloud … design and assurance. • Experience delivering in complex, multi-disciplinary environments. • Current SC Security Clearance or the ability to undergo clearance. • Passionate about building high-quality, secure and maintainable systems. Java Developers- SC Security Clearance- Central Government- Responsibilities • Provide technical direction and leadership for a critical agile delivery team. • Lead either citizen/agent-facing digital product teams or shared More ❯

investment bank within a market-leading front-office team developing business-critical solutions for a range of stakeholders including traders and quants. What you'll need to succeed Extensive Java Development experience within financial services. Strong experience with reference data mandatory. Strong experience with springboot. Strong experience with cloud, ideally Azure or AWS. Good experience integrating with data services. More ❯

Job Title: Senior Java Developer Location: London We're looking for a talented Java Developer with a strong numerate background to join a fast-paced front-office pricing team . You'll help build the next-gen Interest Rate Pricer , working closely with quants and traders. Key Responsibilities: Develop and support pricing platforms using Java 17+ Interface with C++ quant libraries and market data feeds Work on price distribution and interest rate curve building Collaborate in a dynamic, agile environment Requirements: Strong Java development skills - Essential Degree in a numerate subject (Maths, Physics, Engineering, etc.) - Essential Interest in finance and learning about trading systems Interest Rate experience is a plus but not required More ❯