25 of 25 Contract Senior Developer Jobs in the UK

Senior Go Developer 6 Months Contract London Hybrid or Fully Remote An exciting opportunity for a highly skilled Senior Go Developer to join a leading technology business on a contract basis. This organisation is recognised for its engineering excellence and is seeking a Senior Go Developer to help scale distributed systems and deliver high … performance solutions. In this role, the Senior Go Developer will design, develop, and implement data-intensive applications across the full engineering lifecycle. You'll architect and deliver microservices-based systems using Go (Golang), AWS, Kubernetes, Docker, and Kafka, working closely with cross-functional teams to build scalable, reliable, and resilient platforms. You'll also play a key role … in optimising system performance, improving reliability, and ensuring scalability, while contributing to code reviews, design discussions, and knowledge sharing across the engineering function. Senior Go Developer - Key Requirements: Strong commercial experience in backend development Advanced skills in Go (Golang), with proven expertise in AWS, Kubernetes, and Docker End-to-end software engineering experience, including system design and architecture More ❯

Senior Go Developer London, UK 6 Month Contract An incredible opportunity for an experienced Senior Go Developer with strong backend engineering skills to join a prestigious tech client on a contract basis. Known for its high bar for engineering quality, this isn't your typical banking or fintech gig - contractors here are genuinely embedded, involved, and … making meaningful impact from day one. As a Senior Go Developer, you'll play a key role in building mission-critical, data-driven services that power core parts of the platform. You'll take ownership across the full development lifecycle, from system design and implementation to optimisation and release. You'll be working in an open, fast-moving … to shape how things are built and the trust to get on with it - whether that's improving infrastructure, shipping new features, or quietly refactoring something that needs it. Senior Go Developer - Key Requirements: Significant professional experience in software development, with a strong focus on backend systems Proficiency in Go/Golang and proven expertise in AWS, Kubernetes More ❯

Job Role: Senior/Lead Application Developer (MERN) Job Type: Contract Industry: FMCG Location: Remote, UK Rate: £ 500/day to £600/day (Outside IR35) Profile – Senior/Lead Application Developer (MERN) Our client is a leading figurehead in the UK food sector, with an unparalleled pedigree dating back to the early 18th century. Job … Role – Senior/Lead Application Developer (MERN) The successful candidate will be responsible for designing, developing, and maintaining web applications using the MERN technology stack, which includes MongoDB, Express.js, React.js, and Node.js. The ideal candidate should have a strong understanding of the full web development life cycle, a thorough understanding of AWS and be able to work independently … well as collaboratively with other developers. The role will deal with both fixes/enhancements to existing applications as well as developing new applications to meet business needs. Duties – Senior/Lead Application Developer (MERN) • Developing web applications using the MERN stack , typescript • Collaborating closely with cross-functional teams to conceptualize, define, and implement new features. • Work with More ❯

Job Role: Senior/Lead Application Developer (MERN) Job Type: Contract Industry: FMCG Location: Remote, UK Rate: £ 500/day to £600/day (Outside IR35) Profile – Senior/Lead Application Developer (MERN) Our client is a leading figurehead in the UK food sector, with an unparalleled pedigree dating back to the early 18th century. Job … Role – Senior/Lead Application Developer (MERN) The successful candidate will be responsible for designing, developing, and maintaining web applications using the MERN technology stack, which includes MongoDB, Express.js, React.js, and Node.js. The ideal candidate should have a strong understanding of the full web development life cycle, a thorough understanding of AWS and be able to work independently … well as collaboratively with other developers. The role will deal with both fixes/enhancements to existing applications as well as developing new applications to meet business needs. Duties – Senior/Lead Application Developer (MERN) • Developing web applications using the MERN stack , typescript • Collaborating closely with cross-functional teams to conceptualize, define, and implement new features. • Work with More ❯

Senior Power Platform Developer Power Apps, Power Pages, Power Automate, Azure DevOps £(Apply online only) per day, Outside IR35 Initially 4 Months (very likely extensions) Fully Remote (Must be UK based) One of our favorite Consulting partners urgently requires the services of a Senior Power Platform Developer to join a project team, delivering a high profile … Conduct functional testing of new and existing User Stories. Create and update business process diagrams and documentation for Power Automate Flows. Essential Skills and Experience: Proven experience as a Senior Developer with the Microsoft Power Platform, specifically including Power Apps, Power Pages, and Power Automate. Strong knowledge and practical experience with Azure DevOps for managing tasks, tracking progress More ❯

Senior Python Developer** (Contract) Duration: 3 Months (Possibility for extension) Location: Remote (Occasional travel to London as and when required) Rate: A highly competitive Umbrella Day Rate is available for suitable candidates Role Profile We are seeking a highly skilled Senior Python Developer with senior-level expertise to join our dynamic team. Your primary focus More ❯

Senior Frontend Developer | 6 Month Contract (OIR35) | Remote, UK based I'm working with a growing technology-led business that's scaling its engineering team and looking for an experienced Senior Frontend Developer to help deliver a next-generation data and intelligence platform. You'll play a key role in building performant, modern web applications that More ❯

Senior Golang Developer - Web/Vulnerability Scraping 3-Month Rolling Contract (up to 2 years) £600-£650 per day - Inside IR35 Hybrid - London 3 days per week & 2 days working from home Our global media and consumer technology client is seeking a Senior Back End Engineer to join their Information Security team for an initial 3-month More ❯

Senior Golang Developer - Web/Vulnerability Scraping 3-Month Rolling Contract (up to 2 years) £600-£650 per day - Inside IR35 Hybrid - London 3 days per week & 2 days working from home Our global media and consumer technology client is seeking a Senior Back End Engineer to join their Information Security team for an initial 3-month More ❯

Senior MuleSoft Developer 6 Month contract - Inside IR35 - up to £585 per day London based - hybrid working - 3 days office based Current NPPV3 clearance is highly desirable Your main responsibility will be to deliver clean, maintainable, and well-tested code that adheres to SOLID principles. You will work collaboratively across Quality Assurance, DevOps, and other development teams, sharing More ❯

Senior Software Developer - Python 12-Month Contract Inside IR35 Role Details Location: London or Manchester (2 days/week onsite + monthly team rotation) Duration: 12 months Clearance: BPSS to start; active SC required due to timsecale of the project Team: 10 direct reports, part of a 60+ programme Experience: 4+ years Essential Skills Technical: Strong Python development … open data platforms Ensure code is of high quality and well-documented Work closely with UCD teams and technical experts in an agile environment What We're Looking For: Senior Python developer with strong focus on code quality Experience working with data services Comfortable working in small, agile teams and collaborating with UCD teams More ❯

Senior Ruby Developer - Contract Role Location: London or Manchester (Hybrid - 2 days/week on site) Contract Length: 12 months Clearance Required: BPSS to start; ideal candidate will hold an active SC clearance for transfer Start Date: ASAP Rate: £550 - £650 (inside IR35) About the Role We're looking for a Senior Ruby Developer to join More ❯

We’re looking for a Senior Java Developer for our public sector client based in Leeds on an initial 12-month contract paying up to £700 per day Inside IR35. This role allows hybrid working with an expectation to attend the office 3 days per week. You will need to either hold current BPSS clearance or have the … ability to pass it, and be eligible for SC clearance. The successful Senior Java Developer will possess proven skills working with the following – Java 21 (or later) Test Driven Development (TDD) and Behaviour Driven Development (BDD) Large microservice architectures Agile environments and pair programming Implementing APIs for internal and external use Building automated test suites in CI/… traffic websites and handling large data sets Interested? Please apply below. Java Software Engineer, Java, Java 21, Microservices, TDD, BDD, Agile, APIs, CI/CD, Leeds, Government, Public Sector, Developer, Contract, Inside IR35 More ❯

SC Cleared Senior APEX Developer Bristol, Leicester, or Plymouth (2 days per week onsite) £425 - £525 per day (Inside IR35) 6-month contract Must hold live & transferrable SC clearance ( used within the last 12 months) The Opportunity We're seeking an experienced Senior Oracle APEX Developer to play a key role in supporting critical engineering and … be involved in projects that are both technically challenging and genuinely meaningful - supporting the safety and operational readiness of the UK naval fleet. If you're an experienced APEX Developer with the right clearance and a background in complex, secure environments, we'd love to hear from you. More ❯

Contract – Senior React Native Developer £400 -£450PD Remote (UK based) Outside IR35 Immediate start We’re looking for a Senior Mobile Developer with strong React Native expertise to join an organisation on a short-term contract basis. We are looking for someone to lead the development of a high-impact cross-platform app. Skills Strong experience More ❯

Location London/Salford Hybrid 1-2 days a week in the office eligibility to work in the UK Role Overview We are seeking an experienced Senior Developer with strong infrastructure and DevOps expertise to help deliver and support a key transformation project moving the system from an on-premises environment into AWS. This role focuses on engineering … Ops experience Infrastructure, build development experience, monitoring/alerting Desirable Skills SSO Integration Any previous experience of newsroom systems Team player and collaborative working Experience Proven experience as a Senior Software Engineer ideally with a focus on media-related projects. A degree in Computer Science, Software Engineering, or a related field or similar work-based experience. Very good working More ❯

SC Cleared Senior APEX Developer Bristol, Leicester, or Plymouth (2 days per week onsite) £425 - £525 per day (Inside IR35) 6-month contract Must hold live & transferrable SC clearance ( used within the last 12 months) The Opportunity We're seeking an experienced Senior Oracle APEX Developer to play a key role in supporting critical engineering and More ❯

SITS Developer SME - 12 months+ - Remote Based - £s Market Rate We are seeking an experienced Tribal SITS Developer SME to join a leading UK University's Digital Change & Transformation Programme . This is a pivotal role supporting the enhancement and optimisation of the University's student systems landscape, enabling improved digital experiences for students and staff. You will … optimisation. Contribute to documentation and knowledge transfer for ongoing support teams. To apply yo should have the following skills and experience: 6+ years' hands-on experience as a SITS Developer or Consultant within a Higher Education environment. Proven track record delivering change within large-scale SITS implementations or upgrades. Strong experience with eVision, SRLs, Vistas, Tasks, and XML . More ❯

Java Developer - Inside IR35 (2 Days On-site, Telford) Contract | Central Government Project | Hybrid Working Must be able to obtain SC We're seeking an experienced Java Developer to join a high-performing delivery team within a large-scale central government modernisation programme . You'll work as part of an Agile Scrum team made up of Java More ❯

Senior Java Engineer Location: London (1-2 days a week in the office, mandatory on Thursdays) Experience: Minimum 8-10 years Technical Skills: Proficiency in Java 8 (transitioning to Java 17) Retail banking experince Python Experience with Spring Boot 2.4 and above Knowledge of Continuous Integration Apigee Java Testing API experience If all the above skills match your profile More ❯

I am recruiting for a number of Senior Java Developers to work in Leeds 3 days a week, 2 days remote. The role falls inside IR35 so you will be required to work through an umbrella company. I am searching for outstanding skills and someone who must be ready to quickly get to work within an Agile, multidisciplinary team More ❯

Oracle APEX Developer - Contract Hybrid 2 days/week on-site in Bristol, Leicester or Plymouth £475-£525/day (Umbrella, DOE) 6-month initial contract SC Cleared preferred We're working with a leading defence sector organisation to appoint an experienced Oracle APEX Developer for a 6-month contract, supporting key programmes related to through-life engineering More ❯

Oracle APEX Developer - Contract Hybrid | 2 days/week on-site in Bristol, Leicester or Plymouth £475-£525/day (Umbrella, DOE) 6-month initial contract | SC Cleared preferred We're working with a leading defence sector organisation to appoint an experienced Oracle APEX Developer for a 6-month contract, supporting key programmes related to through-life engineering More ❯

a Tier-1 Investment Bank, delivering next-generation algorithmic trading systems across benchmark, smart order routing, and internal crossing strategies. The Role You'll work as a Core Java Developer within a high-performing Algo Engineering group, responsible for evolving a suite of low-latency, high-throughput trading engines that power the firm's EMEA and global electronic trading More ❯

a Tier-1 Investment Bank, delivering next-generation algorithmic trading systems across benchmark, smart order routing, and internal crossing strategies. The Role You'll work as a Core Java Developer within a high-performing Algo Engineering group, responsible for evolving a suite of low-latency, high-throughput trading engines that power the firm's EMEA and global electronic trading More ❯