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29 java developer jobs found in London

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Contract Spy
Aug 05, 2026
Duration not stated
Java Developer - Fintech at Adaptive, London, £Contract Rate (Outside IR35)
Contract Spy London, UK
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...
Contract Spy
Jul 29, 2026
Duration not stated
Java Developer - Fintech at Adaptive, London, £Contract Rate (Outside IR35)
Contract Spy London, UK
JAVA DEVELOPER – LONDON – CONTRACT OUTSIDE IR35  – FINTECH In London 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...
Contract Spy
Jul 17, 2026
6 Months or more
Java Developer (FX Trading) at Deloitte, London, 6 Months, £Competitive Day Rate
Contract Spy London, UK
ob description   Job Title: Java Developer (FX Trading) - contract Location: London Hybrid. Travel to the London office on 2-3 days a week Duration: 6 months (with potential to extend) Contract Start Date: ASAP *note client onboarding takes 4-6 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 Java Developers to work in the Technology and Transformation Team at Deloitte. You will support the FX trading platforms with...
Contract Spy
Jul 16, 2026
6 Months or more
Java Developer (FX Trading) at Deloitte, London, 6 Months, £Competitive Day Rate
Contract Spy London, UK
Job description   Job Title:  Java Developer (FX Trading) - contract Location:  London Hybrid. Travel to the London office on 2-3 days a week Duration:  6 months (with potential to extend) Contract Start Date:  ASAP *note client onboarding takes 4-6 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  Java Developers  to work in the Technology and Transformation Team at Deloitte. You will...
Contract Spy
Jul 14, 2026
Duration not stated
Java Developer at Pixelcode Technologies, London Area, £Contract Rate
Contract Spy London Area, United Kingdom
We are looking for multiple Java Developer to join our Agile engineering team building modern cloud-native digital platforms and APIs. The successful candidate will have strong Java/JVM development experience, knowledge of microservices and REST APIs, experience with cloud technologies and CI/CD, and a passion for delivering high-quality software using modern engineering practices, including AI-assisted development.   Key Skills:- 3–8 years ' commercial experience in Java software development. Develop and maintain Java/Kotlin applications, REST APIs, and microservices. Deliver software across the full SDLC from design through production support. Work on greenfield and existing enterprise applications in an Agile environment. Strong Java/JVM skills with exposure to Kotlin and Spring Boot/Ktor frameworks. Experience with PostgreSQL, MongoDB, Redis, and modern database design. Knowledge of Docker, Kubernetes, AWS/GCP, and cloud-native...
Contract Spy
Jul 10, 2026
Duration not stated
Java Developer (FX Trading) at Deloitte, London, £Contract Rate
Contract Spy London, UK
    Job description   Job Title: Java Developer (FX Trading) - contract Location: London Hybrid. Travel to the London office on 2-3 days a week Duration: 6 months (with potential to extend) Contract Start Date: ASAP *note client onboarding takes 4-6 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 Java Developers to work in the Technology and Transformation...
Contract Spy
Aug 04, 2026
6 Months or more
Senior Java Developer (Azure) at Mindera, London Paddington, 12 Months, £Contract Rate (Outside IR35)
Contract Spy Paddington, London, UK
We have an exciting opportunity for experienced Java developers to join our team! You will have a passion for software development and an excellent understanding of how to define and deliver solutions iteratively and collaboratively. You will be involved in all areas of delivery, with the technical gravitas to mentor and inspire the development team; playing an integral part in helping them continuously improve by sharing your own knowledge, experience and insights. You will be confident in challenging business requirements to ensure you are continuously delivering the best possible outcome, harnessing innovation and driving the adoption of new technologies to deliver business value. Your vision and ambition will contribute to shaping our online technology roadmap, influencing our future technical direction and balancing passion with precision to deliver exceptional online service and solutions for our customers.   This is an initial 12 month contract that sits...
Contract Spy
Aug 03, 2026
Duration not stated
Full Stack Developer (Java+Angular) at Xoriant, London, £Contract Rate
Contract Spy London Area, United Kingdom
Full Stack Developer (Java +Angular) London, UK (Hybrid – Minimum 3 Days per Week Onsite) Contract (Inside IR35) : 12+ Months     Key Responsibilities Design, develop, test, and maintain full-stack web applications. Build responsive and intuitive user interfaces using Angular. Develop robust RESTful APIs and backend services using Java and Spring Boot. Work with MongoDB, SQL Server, and/or Snowflake to design and optimize data solutions. Collaborate with Product Owners, Architects, QA, and DevOps teams throughout the software development lifecycle. Write clean, maintainable, and well-tested code following industry best practices. Troubleshoot production issues and optimize application performance. Participate in code reviews and contribute to technical design discussions.   Required Skills & Experience Strong commercial experience as a Full Stack Developer. Expert knowledge of Angular....
Contract Spy
Jul 27, 2026
Duration not stated
Full Stack Developer (Java+Angular) at Xoriant, London, £Contract Rate
Contract Spy London Area, United Kingdom
Full Stack Developer (Java +Angular) London, UK (Hybrid – Minimum 3 Days per Week Onsite) Contract (Inside IR35) : 12+ Months     Key Responsibilities Design, develop, test, and maintain full-stack web applications. Build responsive and intuitive user interfaces using Angular. Develop robust RESTful APIs and backend services using Java and Spring Boot. Work with MongoDB, SQL Server, and/or Snowflake to design and optimize data solutions. Collaborate with Product Owners, Architects, QA, and DevOps teams throughout the software development lifecycle. Write clean, maintainable, and well-tested code following industry best practices. Troubleshoot production issues and optimize application performance. Participate in code reviews and contribute to technical design discussions.   Required Skills & Experience Strong commercial experience as a Full Stack Developer. Expert knowledge of Angular....
Contract Spy
Jul 22, 2026
6 Months or more
Back-end Developer (Java &Spring Boot/GCP) at Methods, London/Remote, 6 Months initial, £490 per day
£490 per day
Contract Spy Hybrid (London, UK)
About the job Methods is looking for a Back End Developer specialising in Java Spring Boot and GCP(Google Cloud Platform) to join our team within the private Sector Business unit. Rate: £490 inside IR35 Duration: 6 month initially Location: Hybrid; 3days/w in London office Key skillsets: GCP(Google Cloud Platform)Java/Spring Boot Requirements Architectural Rebuild: Play a role in migrating and rebuilding our core architecture in Java Spring Boot to align with a composable, cloud-native landscape. Connector Development: Design and optimize technical connectors for a diverse mix of global channels, including generalist marketplaces, social commerce (eg, TikTok Shop), and quick-commerce (eg, Glovo, Deliveroo). Catalog Publication Flow: Refocus efforts on rebuilding the catalog publication flow, addressing technical complexities such as category mapping, product variant synchronization, and asynchronous marketplace APIs. Business Logic Migration:...
Contract Spy
Jul 20, 2026
Duration not stated
Full Stack Developer (Java+Angular) at Xoriant, London, £Contract Rate
Contract Spy London Area, United Kingdom
Full Stack Developer (Java +Angular) London, UK (Hybrid – Minimum 3 Days per Week Onsite) Contract (Inside IR35) : 12+ Months     Key Responsibilities Design, develop, test, and maintain full-stack web applications. Build responsive and intuitive user interfaces using Angular. Develop robust RESTful APIs and backend services using Java and Spring Boot. Work with MongoDB, SQL Server, and/or Snowflake to design and optimize data solutions. Collaborate with Product Owners, Architects, QA, and DevOps teams throughout the software development lifecycle. Write clean, maintainable, and well-tested code following industry best practices. Troubleshoot production issues and optimize application performance. Participate in code reviews and contribute to technical design discussions.   Required Skills & Experience Strong commercial experience as a Full Stack Developer. Expert knowledge of Angular....
Contract Spy
Jul 15, 2026
6 Months or more
Java/Angular Developer at AND Digital, London Stratford, 6 Months initial, £Contract Rate
Contract Spy London, UK
The role: Contract Angular Developer (with Java experience) We are recruiting for a Contract Software Developer for a duration of initially 6 months. This role is an immediate start and it is twice per week onsite in Stratford, London. Who We Are: AND Digital are a tech company focused on accelerating digital delivery and dedicated to closing the digital skills gap. We’ve been helping organisations build better digital products and stronger digital teams since 2014. We believe our work should always make a remarkable impact for our clients. We do this through our regional offices (or ‘Clubs’) building strong relationships with our partners, so that they are always prioritised by a team within close proximity. This unique model has driven success for our clients and ourselves, evidenced by our remarkable organic growth since 2014. Today we number more than 1,300 people with Clubs all over the UK, Europe and the USA with plans for global...
Contract Spy
Jul 13, 2026
Duration not stated
Full Stack Developer (Java+Angular) at Xoriant, London, £Contract Rate
Contract Spy London Area, United Kingdom
Full Stack Developer (Java +Angular) London, UK (Hybrid – Minimum 3 Days per Week Onsite) Contract (Inside IR35) : 12+ Months     Key Responsibilities Design, develop, test, and maintain full-stack web applications. Build responsive and intuitive user interfaces using Angular. Develop robust RESTful APIs and backend services using Java and Spring Boot. Work with MongoDB, SQL Server, and/or Snowflake to design and optimize data solutions. Collaborate with Product Owners, Architects, QA, and DevOps teams throughout the software development lifecycle. Write clean, maintainable, and well-tested code following industry best practices. Troubleshoot production issues and optimize application performance. Participate in code reviews and contribute to technical design discussions.   Required Skills & Experience Strong commercial experience as a Full Stack Developer. Expert knowledge of Angular....
Contract Spy
Aug 05, 2026
Duration not stated
Senior Full Stack Developer at Deloitte, London, £Contract Rate
Contract Spy London, UK
Job description   Job Title: Senior Full Stack Developer (contract) Location: London Hybrid. Travel to the London office 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 Senior 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...
Contract Spy
Aug 05, 2026
Duration not stated
Full Stack Developer at Deloitte, London, £Competitive Day Rate
Contract Spy London, UK
Job description   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...
Contract Spy
Aug 04, 2026
6 Months or more
Algo Developer at Nomura, London, 6-12 Months, £Contract Rate
Contract Spy London, UK
Company overview Nomura is a financial services group with an integrated global network. By connecting markets East & West, we service the needs of individuals, institutions, corporates and governments through our four business divisions: Wealth Management, Investment Management, Wholesale (Global Markets and Investment Banking) and Banking. Driven by the insights of some 28,000 people worldwide, we put our clients at the center of everything we do, delivering unparalleled access to, from and within Asia. For further information about Nomura, visit www.nomura.com Department Overview: As the Global Execution Services technology division for Nomura's Wholesale IT, the group provides brokerage services solutions to clients in over 65 markets around the world. Through its advanced suite of electronic trading strategies, experienced high-touch trading group, top-ranked Commission Management services, award winning desktop trading platform, and unparalleled access to...
Contract Spy
Jul 30, 2026
Duration not stated
Senior Software Developer in Test - SC Cleared at The Scale Factory, London, £Contract Rate
Contract Spy London, UK
Role: Senior Software Developer in Test - Security Cleared Job Type: Contract IR35 Status: Inside IR35 Please note this role requires active Security Clearance About Scale Factory We are an AI enablement consultancy. Delivering quality-led AI-first foundations, embedding capability and excellence into the foundational fabric of the companies we work with. We give leaders the confidence to move faster, take smarter risks and pursue transformation. Formerly Ten10, we have deep roots in Quality which means we don’t just build for the future, we ensure it actually works. We combine this engineering discipline with cutting-edge AI expertise to deliver robust, scalable foundations that turn ambitious transformation into reliable reality. Essential Skills & Experience: Active Security Clearance Solid technical development background with strong coding skills in Java & JavaScript Proven expertise in...
Contract Spy
Jul 29, 2026
Duration not stated
Senior Full Stack Developer at Deloitte, London, £Contract Rate
Contract Spy London, UK
Contract - Senior Full Stack Developer Job description   Job Title: Senior Full Stack Developer (contract) Location: London Hybrid. Travel to the London office 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 Senior Full Stack Developers to work in the Technology and Transformation Team at Deloitte. You will work with one of our...
Contract Spy
Jul 29, 2026
Duration not stated
Full Stack Developer at Deloitte, London, £Competitive Day Rate
Contract Spy London, UK
Contract - Full Stack Developer Job description   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...
Contract Spy
Jul 23, 2026
Duration not stated
Senior Software Developer in Test - SC Cleared at The Scale Factory, London, £Contract Rate
Contract Spy London, UK
Role: Senior Software Developer in Test - Security Cleared Job Type: Contract IR35 Status: Inside IR35 Please note this role requires active Security Clearance About Scale Factory We are an AI enablement consultancy. Delivering quality-led AI-first foundations, embedding capability and excellence into the foundational fabric of the companies we work with. We give leaders the confidence to move faster, take smarter risks and pursue transformation. Formerly Ten10, we have deep roots in Quality which means we don’t just build for the future, we ensure it actually works. We combine this engineering discipline with cutting-edge AI expertise to deliver robust, scalable foundations that turn ambitious transformation into reliable reality. Essential Skills & Experience: Active Security Clearance Solid technical development background with strong coding skills in Java & JavaScript Proven expertise in...
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