18 java cloud developer jobs found

Full Stack Developer (React) | London | Contract   London, United Kingdom | Posted on 26/08/2026 Deloitte are seeking a highly skilled Full Stack Developer to join our team and contribute to the design, development, and delivery of scalable, high-performance applications. The ideal candidate has strong expertise in both front-end and back-end technologies, experience with cloud platforms, and the ability to collaborate effectively across teams while supporting technical delivery.   Key Responsibilities:   Technical Delivery Design, develop, and maintain full-stack applications using modern frameworks and technologies. Build scalable APIs, microservices, and integrations. Develop high-quality, responsive UI components with an eye for performance and usability. Optimize system performance, reliability, and scalability. Architecture & Design Contribute to application architecture decisions and long-term...

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 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 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...

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...

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...

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...

Skills & Experience Job roles: Back End Experience level: Lead Core skills considered: APIs, REST, SOAP, JSON, SQL Other skills considered: Java, Groovy, CI/CD, AWS, Azure Logistics Base salary: Undisclosed Employment type: Freelance/Contract Remote working: Hybrid Visa sponsorship: Not available Job Description We are looking for a hands-on Boomi Integration Architect who can design scalable integration solutions while leading development and delivery. The role combines architecture, technical leadership, client engagement and hands-on Boomi development. Key Responsibilities Design enterprise integration solutions using the Boomi platform. Lead discovery, requirements and solution-design sessions. Build and review complex Boomi integration processes. Develop reusable APIs, components and integration frameworks....

Skills & Experience Job roles: Back End Experience level: Mid, Senior Core skills considered: APIs, REST, SOAP, SQL, Java Other skills considered: Groovy, CI/CD, AWS, Azure Logistics Base salary: Undisclosed Employment type: Freelance/Contract Remote working: Hybrid Visa sponsorship: Not available Job Description We are looking for an experienced Boomi Developer to design, build, test and support integration solutions using the Boomi Enterprise Platform. The role requires strong hands-on development skills across APIs, cloud applications, databases and enterprise systems. Key Responsibilities Develop and maintain integration processes using Boomi. Build integrations between cloud and on-premises applications. Configure Boomi connectors, maps, profiles, process properties and environment extensions. Develop REST,...

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...

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 global financial services clients. This position requires a solid understanding of Development...

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 with one of our global financial services clients. This position requires a solid understanding of Development and...

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,...

Application Support Engineer (Windows & Enterprise Applications) Contract 12+ months (Inside IR35) Hybrid (2 days a week)   Job purpose Provide 2nd and 3rd line production operational support for our Business Systems, many of which are critical business. Provide remote and on-site support as part of the on-call support Rota. Take a lead role with the delivery of application releases for minor/major projects and programs.   Responsibilities Provide remote and onsite and support for our internally developed business critical applications and 3rd Party vendor packages through Dev, UAT Test and Prod. Manage and escalate problems as appropriate. Investigate defects or problems; work with the internal teams and external vendors to identify workarounds and support any fixes that are required as part of service improvement. Implement changes or fixes to applications. Support other technical changes being made which affect...

Application Support Engineer (Windows & Enterprise Applications) Contract 12+ months (Inside IR35) Hybrid (2 days a week)   Job purpose Provide 2nd and 3rd line production operational support for our Business Systems, many of which are critical business. Provide remote and on-site support as part of the on-call support Rota. Take a lead role with the delivery of application releases for minor/major projects and programs.   Responsibilities Provide remote and onsite and support for our internally developed business critical applications and 3rd Party vendor packages through Dev, UAT Test and Prod. Manage and escalate problems as appropriate. Investigate defects or problems; work with the internal teams and external vendors to identify workarounds and support any fixes that are required as part of service improvement. Implement changes or fixes to applications. Support other technical changes being made which affect...

  Job Reference hbuk/TP/358/2721 Contract Type Day Rate Contractor Closing Date 23 August, 2026 The opportunity  As the Salesforce QA you will be driving forwards the multi-level testing of key system developments. You will be responsible for testing a catalogue of new features, working collaboratively with UK and Swedish development teams, whilst focusing on the timely delivery of agreed outcomes that meet both business and customer needs.  As the Salesforce QA you bring experience in automation testing, to enable a fast feedback loop for the development teams working on business-critical features. Experience of test planning, the ability to develop a test strategy and test approach, particularly tailored to individual releases, will also be essential.  As the UK Bank becomes accustomed to more agile ways of working, it is also important that you are familiar with agile concepts and has proven experience of one or...

Application Support Engineer (Windows & Enterprise Applications) Contract 12+ months (Inside IR35) Hybrid (2 days a week)   Job purpose Provide 2nd and 3rd line production operational support for our Business Systems, many of which are critical business. Provide remote and on-site support as part of the on-call support Rota. Take a lead role with the delivery of application releases for minor/major projects and programs.   Responsibilities Provide remote and onsite and support for our internally developed business critical applications and 3rd Party vendor packages through Dev, UAT Test and Prod. Manage and escalate problems as appropriate. Investigate defects or problems; work with the internal teams and external vendors to identify workarounds and support any fixes that are required as part of service improvement. Implement changes or fixes to applications. Support other technical changes being made which affect...

Location:            Leeds or London (Hybrid) Type:                  Contract / Fixed-Term Employment Start:                  ASAP   We’re seeking a Full Stack Engineer with a strong backend focus to help build and modernise the Global Data Network (GDN), a high-impact platform enabling the secure sharing and analysis of fraud intelligence across systems. This is a hands-on engineering role where you’ll work across backend services, data platforms, cloud infrastructure, and UI, contributing to the evolution of a cloud-native, API-driven architecture. You’ll play a critical role in transforming legacy data-sharing approaches into a scalable, real-time, graph-powered platform that enhances fraud detection and intelligence capabilities.  ...