48 java developer jobs found

Lead Java Developer/Solution Architect (6-month contract) Job description   gravity9 is recruiting Java engineers and architects for a portfolio of engagements across UK central government. These are large-scale, data-intensive modernisation programmes: replacing legacy systems that carry statutory weight, decomposing monoliths that serve millions of users, and building secure data platforms where access control and auditability are first-class architectural concerns rather than late additions. We are hiring across two overlapping profiles — Senior Java Developer and Application / Migration Architect — and expect most people to move between programmes as engagements start and complete. Several of these are hands-on architect roles: you will own design decisions and also write production code   The kind of work The following are representative of current and upcoming engagements. Individual roles will draw on some of this, not all of it...

Job Information Date Opened 25/08/2026 Job Type Contract Industry IT Services Work Experience 5+ years Salary £400 - £425 Outside IR35 About Scrumconnect Consulting Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens. With a strong commitment to user-centred design and agile delivery, we continue to build innovative digital services that truly make a difference. Role Purpose We are looking for an experienced  Backend Developer  to design, build, and maintain scalable, secure server-side services and APIs, while contributing to the adoption of  Agentic AI  capabilities within our engineering platform. The role sits at  SFIA Level 4 : the individual works under general direction, uses discretion in resolving...

Our Digital Engineering team at ITG are responsible for building world class, enterprise grade digital applications for high profile brands. We pride ourselves in working with mature Agile methodologies and make use of the latest versions of technology. Our teams are structured in such a way that gives every employee the opportunity to learn new skills, work on various projects over time and see the results of your efforts in the online consumer marketplace. Joining the Digital Engineering function would see you work as part of a cross-functional, product style team, generally consisting of a Business Analyst, Scrum Master / Project Manager, Solution Architect, Lead Developers (FE and BE), Developers, and Testers (Manual and Automated). ITG require a talented Lead Java Developer to work on the development of a range of web based products and tools. Lead Java Developers are responsible for building and maintaining a range of websites and applications for our clients,...

Senior Java Developer (6 month contract) Full job description First Derivative is driven by people, data, and technology, unlocking the value of insight, hindsight, and foresight to drive organizations forward. Counting many of the world's leading investment banks as clients, we help our clients navigate the data-driven, digital revolution that is transforming the financial services sector. Our global teams span across 15 offices serving clients across EMEA, North America and APAC. As an EPAM Systems, Inc. (NYSE: EPAM) company, a leading global provider of digital platform engineering and development services, we deliver advanced financial services solutions by empowering operational insights, driving innovation, and enabling more effective risk management in an increasingly data-centric world. Together with EPAM, we combine deep industry expertise with cutting-edge technology to help clients stay ahead in a rapidly evolving financial landscape, offering...

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 the world's leading investment banks, investment managers, fintech, and capital market service providers. With a global reach with offices in London, New York, Barcelona, 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...

Our Digital Engineering team at ITG are responsible for building world class, enterprise grade digital applications for high profile brands. We pride ourselves in working with mature Agile methodologies and make use of the latest versions of technology. Our teams are structured in such a way that gives every employee the opportunity to learn new skills, work on various projects over time and see the results of your efforts in the online consumer marketplace. Joining the Digital Engineering function would see you work as part of a cross-functional, product style team, generally consisting of a Business Analyst, Scrum Master / Project Manager, Solution Architect, Lead Developers (FE and BE), Developers, and Testers (Manual and Automated). ITG require a talented Lead Java Developer to work on the development of a range of web based products and tools. Lead Java Developers are responsible for building and maintaining a range of websites and applications for our clients,...

Senior Java Developer (6 month contract) Full job description First Derivative is driven by people, data, and technology, unlocking the value of insight, hindsight, and foresight to drive organizations forward. Counting many of the world's leading investment banks as clients, we help our clients navigate the data-driven, digital revolution that is transforming the financial services sector. Our global teams span across 15 offices serving clients across EMEA, North America and APAC. As an EPAM Systems, Inc. (NYSE: EPAM) company, a leading global provider of digital platform engineering and development services, we deliver advanced financial services solutions by empowering operational insights, driving innovation, and enabling more effective risk management in an increasingly data-centric world. Together with EPAM, we combine deep industry expertise with cutting-edge technology to help clients stay ahead in a rapidly evolving financial landscape, offering...

JAVA DEVELOPER - LONDON - CONTRACT OUTSIDE IR35 - FINTECH 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 the world's leading investment banks, investment managers, fintech, and capital market service providers. With a global reach with offices in London, New York, Barcelona, 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...

Our Digital Engineering team at ITG are responsible for building world class, enterprise grade digital applications for high profile brands. We pride ourselves in working with mature Agile methodologies and make use of the latest versions of technology. Our teams are structured in such a way that gives every employee the opportunity to learn new skills, work on various projects over time and see the results of your efforts in the online consumer marketplace. Joining the Digital Engineering function would see you work as part of a cross-functional, product style team, generally consisting of a Business Analyst, Scrum Master / Project Manager, Solution Architect, Lead Developers (FE and BE), Developers, and Testers (Manual and Automated). ITG require a talented Lead Java Developer to work on the development of a range of web based products and tools. Lead Java Developers are responsible for building and maintaining a range of websites and applications for our clients,...

Rate: Inside IR35 Clearance: Active SC or confident in passing Location: Leeds, Sheffield or London Travel: Maximum once per month Contract: Initial contract   We’re looking for an experienced Senior Java Developer to join a large-scale technology programme, working on modern applications and services within a complex enterprise environment.   Key Skills & Experience Strong, recent experience developing applications using Java and Spring Boot Experience developing front-end applications – Thymeleaf and GOV.UK Design System desirable Strong experience designing and developing RESTful APIs , including API versioning Experience with OpenAPI / Swagger Strong knowledge of SQL, Spring Data JPA and Hibernate Oracle database experience desirable Experience writing unit and integration tests using JUnit 5 and mocking frameworks Experience with automated UI regression testing, ideally...

Join DWP 's Digital team supporting the Government 's Job Guarantee programme, helping young people into work. You 'll play a key role in the ongoing development of the platform, building modern digital services that support citizen journeys, provider engagement and payment processes within Agile delivery teams.   As a Senior Java Developer your main responsibilities will be: Building and enhancing Spring Boot microservices Developing scalable cloud based services in AWS Writing automated tests using TDD practices and modern testing frameworks Contributing to event driven solutions and integrations Owning complex features from design through to delivery Supporting code reviews and promoting engineering best practice Collaborating with Product Managers, Architects, Business Analysts and QA teams Supporting the delivery of a major DWP digital programme   Essential: Strong Java development experience (Java 17+) Spring...

Java Developer (6 month contract) First Derivative is driven by people, data, and technology, unlocking the value of insight, hindsight, and foresight to drive organizations forward. Counting many of the world's leading investment banks as clients, we help our clients navigate the data-driven, digital revolution that is transforming the financial services sector. Our global teams span across 15 offices serving clients across EMEA, North America and APAC. As an EPAM Systems, Inc. (NYSE: EPAM) company, a leading global provider of digital platform engineering and development services, we deliver advanced financial services solutions by empowering operational insights, driving innovation, and enabling more effective risk management in an increasingly data-centric world. Together with EPAM, we combine deep industry expertise with cutting-edge technology to help clients stay ahead in a rapidly evolving financial landscape, offering comprehensive solutions that drive...

Senior Java Developer: 👨 💻   📍 Location : Sheffield 📅 Contract: Inside IR 35 🔒 Clearance: Active SC Clearance preferred, or candidates with a strong likelihood of obtaining SC clearance due to previously held or lapsed clearance   About the Role We're looking for a Senior Java Developers to join a high-profile UK Gov programme, supporting the development of next-generation Electronic Monitoring capabilities. You'll play a key role in designing and building cloud-native, event-driven services , developing Authority-owned APIs, operational tooling, and modern digital services while contributing to the continuous improvement of existing live platforms. Working within agile, multidisciplinary teams, you'll collaborate closely with Technical Architects, Product Managers, Data Engineers and Delivery Managers to deliver secure, scalable solutions that make a real impact across government.   🔑 Key Responsibilities...

Lead Java Developer – Azure Role type: Contract Location: UK / Remote Lead Java Developer  required to join our Satalia team. As an organisation, we push the boundaries of data science, optimisation and artificial intelligence to solve the most complex problems in the industry. Satalia, a WPP company is a community of individuals devoted to working on diverse and challenging projects, allowing you to flex your technical skills whilst working with a tight-knit team of high performing colleagues. Led by our founder and WPP Chief AI Officer Daniel Hulme, Satalia’s ambition is to become a decentralised organisation of the future. Today, this involves developing tools and processes to liberate and automate manual repetitive tasks, with a focus on freedom, transparency and trust. At the core of our thinking is an approach to wellbeing and inclusivity. We unpack human behaviour and unpick prejudice to ensure a safe and inviting environment. We offer...

Java and Azure Developer : Contract Role London, England, United Kingdom WPP is the trusted growth partner for the world’s leading brands.  We unite cutting-edge media intelligence and data solutions, world-class creativity, next-generation production, transformative enterprise solutions and expert strategic counsel in a single company – powered by exceptional talent and our agentic marketing platform, WPP Open, to help our clients navigate change, capture opportunity and deliver transformational growth.    We work with the world's most valuable brands and have global reach across 100+ markets, with deep local expertise.   Our people are the key to our success. We're committed to fostering a culture of creativity, belonging and continuous learning, attracting and developing the brightest talent, and providing exciting career opportunities that help our people grow.    For more information,...

The Department for Work and Pensions (DWP) is responsible for welfare, pensions, and child maintenance policy. As the UK's biggest public service department, it administers the State Pension and a range of working age, disability and ill health benefits to around 20 million claimants and customers. As such, we operate on a scale that is almost unmatched anywhere in Europe and most people in Britain come into contact with us at some point in their lives.   Working with DWP, you will be helping us to drive our priorities to:   Help people to move into work and support those already in work to progress, with the aim of increasing overall workforce participation Help people to plan and save for later life, while providing a safety net for those who need it now Provide effective, efficient, and innovative services to the millions of claimants who rely on us every day, including the most vulnerable in society Improve experience of our services while...

Key Responsibilities: Maintain and enhance legacy UIs developed with extJS . Develop new UI features using React.js for modernised components. Write and maintain scalable backend code using Java (Spring preferred). Work with Oracle SQL for queries, stored procedures, and data analysis. Collaborate closely with technical leads, QA, and stakeholders to deliver reliable solutions. Ensure code quality, performance, and compliance with enterprise standards. Required Skills: Strong hands-on experience with Java development. Practical knowledge of extJS (legacy UI support). Proficient in React.js for newer screen development. Solid SQL expertise with Oracle (writing complex queries, debugging, data extraction). Experience working in a fast-paced, fully onsite delivery team. Excellent communication and problem-solving skills. Job Type: Freelance Pay: £450.00-£500.00 per day Experience: Java:...

Job Title: Full Stack Developer (contract) Location: London Hybrid. Travel to the London office on 3 days a week Duration: 11 months Contract Start Date: ASAP *note client onboarding takes 6 weeks from offer Day Rate: Competitive (Inside IR35)   Deloitte Working with the Deloitte Associate (Contractor) Programme means we can offer you the opportunity to work on a variation of industry and client related projects. Our aim is to retain the best talent and so when your project end date nears our team of Talent Community Advisors will be working with you to look at alternative projects within the firm that suit your experience should you wish to continue with Deloitte.   The Role We are looking for an experienced Full Stack Developers to work in the Technology and Transformation Team at Deloitte. You will work with one of our global financial services clients. This position requires a solid understanding of...

Job Summary We are seeking a dynamic and detail-oriented Web Developer specialized in Airtables to join our innovative team. In this role, you will leverage your expertise in front-end and back-end development to create, optimize, and maintain custom web applications using Airtable as a core platform. Your energetic approach will drive seamless integration with various technologies, ensuring efficient data management and user-friendly interfaces. This position offers an exciting opportunity to contribute to impactful projects that enhance operational workflows and elevate user experiences across multiple platforms. Duties Design, develop, and customize Airtable bases to meet project-specific requirements, ensuring scalable and efficient data structures. Integrate Airtable with other web services and APIs using REST, GraphQL, and custom webhooks to automate workflows and synchronize data across systems. Build responsive front-end interfaces utilizing HTML,...

We are seeking a Backend Java Software Engineer to join our team on a contractual basis. This role heavily focuses on Java, Backend, iGaming Operator Integrations.   This is 1 year extendable contract and applicants must operate through a fully registered limited company to be considered for this role. The role is fully remote, with occasional travel required to our headquarters in Málaga, Spain   What You’ll Do Design, develop and maintain scalable, resilient backend services using Java (17+) and Spring Boot, with a strong focus on quality and a zero-defect mindset. Build and evolve integrations between our iGaming platform and operators, aggregators and other external partners. Design and implement robust REST APIs, asynchronous integrations and event-driven services supporting high-volume, real-time gaming transactions. Develop and maintain common platform capabilities supporting operator integration,...