25 java developer jobs found

Job Information Date Opened 10/11/2026 Job Type Contract Industry Government & Public Sector Work Experience 5+ years Salary 400 OUTSIDE IR35 City London Province Greater London Country United Kingdom Postal Code EC1A Job Description About Scrumconnect Scrumconnect Consulting is a multi-award-winning UK digital consultancy. We help public and private sector organisations design and deliver better digital services, working in agile, multidisciplinary teams on services used by millions of people every day. Role Overview We are looking for a talented Java Developer to join our team and help design, build and maintain high-performance applications. You will have a solid grounding in Java and enjoy working with modern tools and frameworks. You will play a key part in building scalable, high-quality software, working closely...

Job Information Date Opened 10/11/2026 Job Type Contract Industry Government & Public Sector Work Experience 5+ years Salary 400 OUTSIDE IR35 City London Province Greater London Country United Kingdom Postal Code EC1A Job Description About Scrumconnect Scrumconnect Consulting is a multi-award-winning UK digital consultancy. We help public and private sector organisations design and deliver better digital services, working in agile, multidisciplinary teams on services used by millions of people every day. Role Overview We are looking for a talented Java Developer to join our team and help design, build and maintain high-performance applications. You will have a solid grounding in Java and enjoy working with modern tools and frameworks. You will play a key part in building scalable, high-quality software, working closely with engineers, architects and product teams to deliver...

Java Developer £400 per day Outside IR35 SC Eligibility is must, Active SC preferred About Scrumconnect Scrumconnect Consulting is a multi-award-winning UK digital consultancy. We help public and private sector organisations design and deliver better digital services, working in agile, multidisciplinary teams on services used by millions of people every day. Role overview We are looking for a talented Java Developer to join our team and help design, build and maintain high-performance applications. You will have a solid grounding in Java and enjoy working with modern tools and frameworks. You will play a key part in building scalable, high-quality software, working closely with engineers, architects and product teams to deliver services that make a real difference. Key responsibilities ? Application development: design, develop and implement Java applications using modern tools and best practice ? Code quality: write clean, scalable code and take part in code reviews to...

Senior Java Developer - Streaming Platforms Outside IR35 | Circa £400 per day | 6 month contract initially | 2 days on site in Isleworth, London We are looking for an experienced Senior Java Developer to join a large-scale streaming technology environment, working on Back End services supporting live streaming and video-on-demand platforms used by millions of customers. The ideal candidate will have a strong background in Java development, hands-on testing experience and importantly, previous experience working within the media, broadcasting or video streaming industry. This is an opportunity to work on high-traffic, cloud-based systems, contributing to the development, performance and reliability of business-critical streaming services. Key Responsibilities Design, develop and maintain scalable Back End services and RESTful APIs using Java 21+ and Spring Boot. Develop and enhance Back End systems supporting live streaming and video-on-demand applications....

Senior Java Developer/Technical Lead (Assurance) - Spring Boot/Angular - SC Cleared - Outside IR35 Location: London - Hybrid Duration: 6 months + Clearance: Active SC clearance required (UK only) Outside IR35 Synergetic is recruiting a senior, hands-on Java developer on behalf of a leading consultancy. You'll join a major central government programme that is replacing a critical system. The Legacy code is more than 30 years old, and the replacement is being built on Java, Spring Boot, Angular and PostgreSQL. You'll act as the client's technical lead on code quality and delivery. You'll get into the delivery partner's codebase, designs and pipelines, judge what is being built and how well, and then explain that clearly to Product Managers, Delivery Managers and programme leadership. We need a strong engineer who can communicate, not a governance specialist. What You'll Do Review code, designs and architecture decisions from the delivery partner, and...

Java Developer (SC Eligible) Contract: 6 months Rate: £350 per day (Outside IR35) Location: Remote with occasional office visits Security Clearance: SC Eligible Overview We are seeking a skilled Java Developer to join a high-profile digital delivery team on an initial 6-month contract. This role is primarily remote, with occasional travel to the office as required. You will be responsible for designing, developing, and implementing robust Java-based solutions within an agile environment. This is an excellent opportunity for a developer with strong Back End experience who enjoys working on large-scale digital services and collaborating with multidisciplinary teams. Key Responsibilities Design, develop, and maintain Java applications and microservices. Build scalable and secure software solutions using modern development practices. Collaborate with Business Analysts, Architects, DevOps Engineers, and QA teams. Participate in Agile ceremonies including...

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, fintechs and capital market service providers. With a global reach with offices in London, New York, Barcelona, Montreal and Manila, we have a proven track record delivering powerful, elegant and intuitive trading technology solutions. You'll join a talented team and take on exciting, technically challenging projects. YOU ARE: • A JVM lover who really enjoys working with the latest technologies and design patterns • Eager to solve complex technical challenges, especially in cloud-based environments and event driven architecture patterns • Someone looking to...

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, fintechs and capital market service providers. With a global reach with offices in London, New York, Barcelona, Montreal and Manila, we have a proven track record delivering powerful, elegant and intuitive trading technology solutions. You'll join a talented team and take on exciting, technically challenging projects. YOU ARE: • A JVM lover who really enjoys working with the latest technologies and design patterns • Eager to solve complex technical challenges, especially in cloud-based environments and event driven architecture patterns • Someone looking to...

Software Developer Remote - monthly travel £400-£500 outside IR35 Requires Active SC Clearance Overview We are seeking an experienced Software Engineer to join a critical digital transformation programme supporting the UK Defence and National Security sector click apply for full job details

Senior Backend Developer (Java/Spring Boot/AWS) Rate: £500 - £600 Outside IR35 Location: London - 3 times on site a month Duration: 6 months initial The role: I'm working with a financial services organisation that needs a Senior Backend Developer to build and maintain cloud-based services on AWS click apply for full job details

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, fintechs and capital market service providers. With a global reach with offices in London, New York, Manila, Barcelona and Montreal, we have a proven track record of delivering powerful, elegant and intuitive trading technology solutions. We are now looking for Technical Business Analyst services on an exciting project! THE INDIVIDUAL/S PROVIDING THE SERVICES WILL HAVE THE FOLLOWING EXPERIENCE: • Experience in QA, Software Engineering (ideally a senior Java developer), Technical Business Analysis, or another highly technical product environment •...

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, fintechs and capital market service providers. With a global reach with offices in London, New York, Manila, Barcelona and Montreal, we have a proven track record of delivering powerful, elegant and intuitive trading technology solutions. We are now looking for Technical Business Analyst services on an exciting project! THE INDIVIDUAL/S PROVIDING THE SERVICES WILL HAVE THE FOLLOWING EXPERIENCE: • Experience in QA, Software Engineering (ideally a senior Java developer), Technical Business Analysis, or another highly technical product environment •...

Staff Full Stack Engineer (Contract) | Rust & Java (Primary) | React & Python (Secondary) | Fully Remote (UK-based) | £500-600+/day | Outside IR35 | 12-Month Contract We’re partnering with a fast-scaling, globally distributed tech business that’s investing heavily in the evolution of its platform – modernising backend services, improving frontend experiences, and setting long-term architectural direction. They’re looking for a Staff Full Stack Engineer (Contract) with strong commercial experience in Rust and Java, alongside hands-on experience building production-grade applications with React and Python. This is a high-impact, long-term contract within an experienced, product-focused engineering team, where you'll play a key role in developing scalable backend systems, delivering modern frontend experiences, and influencing architectural decisions. It’s well suited to an experienced contractor who enjoys owning complex technical challenges, working...

Staff Full Stack Engineer (Contract) | Rust & Java (Primary) | React & Python (Secondary) | Fully Remote (UK-based) | £500-600+/day | Outside IR35 | 12-Month Contract We’re partnering with a fast-scaling, globally distributed tech business that’s investing heavily in the evolution of its platform – modernising backend services, improving frontend experiences, and setting long-term architectural direction. They’re looking for a Staff Full Stack Engineer (Contract) with strong commercial experience in Rust and Java, alongside hands-on experience building production-grade applications with React and Python. This is a high-impact, long-term contract within an experienced, product-focused engineering team, where you'll play a key role in developing scalable backend systems, delivering modern frontend experiences, and influencing architectural decisions. It’s well suited to an experienced contractor who enjoys owning complex technical challenges, working...

Staff Full Stack Engineer (Contract) | Rust & Java (Primary) | React & Python (Secondary) | Fully Remote (UK-based) | £500-600+/day | Outside IR35 | 12-Month Contract We’re partnering with a fast-scaling, globally distributed tech business that’s investing heavily in the evolution of its platform – modernising backend services, improving frontend experiences, and setting long-term architectural direction. They’re looking for a Staff Full Stack Engineer (Contract) with strong commercial experience in Rust and Java, alongside hands-on experience building production-grade applications with React and Python. This is a high-impact, long-term contract within an experienced, product-focused engineering team, where you'll play a key role in developing scalable backend systems, delivering modern frontend experiences, and influencing architectural decisions. It’s well suited to an experienced contractor who enjoys owning complex technical challenges, working...

Automation Test Engineer Contract role - 6 months rolling SC Cleared or British and eligible for SC Clearance £300 a day - outside IR35 Hybrid, occasional visits to site in London We require an Automation Tester with strong Java capabilities to develop new features for our portfolio of Government Clients. REQUIREMENTS Strong Java coding skills (JavaScript, JMeter Scripting also advantageous). Experience as a software tester/developer in test with a good appreciation of test automation. Passionate about code quality and advocate of clean code principles. Excellent analysis and problem-solving skills with meticulous attention to detail. Experience with common test automation tools such as Selenium, Cucumber or Serenity; CI/CD tools (such as Jenkins, Stash, GitHub, Bitbucket) Experience testing UI, API (SOAP UI, RESTFUL services) and web services-based systems, including end-to-end and/or in isolation using mocks. Experience with very large...

Staff Full Stack Engineer (Contract) | Rust & Java (Primary) | React & Python (Secondary) | Fully Remote (UK-based) | £500-600+/day | Outside IR35 | 12-Month Contract We’re partnering with a fast-scaling, globally distributed tech business that’s investing heavily in the evolution of its platform – modernising backend services, improving frontend experiences, and setting long-term architectural direction. They’re looking for a Staff Full Stack Engineer (Contract) with strong commercial experience in Rust and Java, alongside hands-on experience building production-grade applications with React and Python. This is a high-impact, long-term contract within an experienced, product-focused engineering team, where you'll play a key role in developing scalable backend systems, delivering modern frontend experiences, and influencing architectural decisions. It’s well suited to an experienced contractor who enjoys owning complex technical challenges, working...

EIS Developer | Contract | Remote UK I'm working with a leading insurer that's modernising its core platform on EIS, and they need a strong EIS developer to join the delivery team. You'll be hands-on in the build, configuring and extending the EIS platform across policy, billing and/or claims, and integrating it with the systems around it. It's a high-visibility programme with real investment behind it and a team that knows what it's doing. What you'll be doing Developing and configuring components across the EIS Suite (PolicyCore, BillingCore, ClaimCore, CustomerCore) Building integrations with external systems such as payment gateways, finance, document generation and data platforms Working in an Agile team with BAs, testers and architects from design through to release Taking part in code reviews, demos and technical discussions Supporting CI/CD pipelines and DevOps practices What you'll bring Hands-on development experience with EIS Suite/EIS...

Staff Full Stack Engineer (Contract) | Rust & Java (Primary) | React & Python (Secondary) | Fully Remote (UK-based) | £500-600+/day | Outside IR35 | 12-Month Contract We’re partnering with a fast-scaling, globally distributed tech business that’s investing heavily in the evolution of its platform – modernising backend services, improving frontend experiences, and setting long-term architectural direction. They’re looking for a Staff Full Stack Engineer (Contract) with strong commercial experience in Rust and Java, alongside hands-on experience building production-grade applications with React and Python. This is a high-impact, long-term contract within an experienced, product-focused engineering team, where you'll play a key role in developing scalable backend systems, delivering modern frontend experiences, and influencing architectural decisions. It’s well suited to an experienced contractor who enjoys owning complex technical challenges, working...

About the job Staff Full Stack Engineer (Contract) | Rust & Java (Primary) | React & Python (Secondary) | Fully Remote (UK-based) | £500-600+/day | Outside IR35 | 12-Month Contract   We’re partnering with a fast-scaling, globally distributed tech business that’s investing heavily in the evolution of its platform – modernising backend services, improving frontend experiences, and setting long-term architectural direction.   They’re looking for a Staff Full Stack Engineer (Contract) with strong commercial experience in Rust and Java, alongside hands-on experience building production-grade applications with React and Python.   This is a high-impact, long-term contract within an experienced, product-focused engineering team, where you'll play a key role in developing scalable backend systems, delivering modern frontend experiences, and influencing architectural decisions.   It’s well...