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13 senior full stack engineer jobs found

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senior full stack engineer £500 - £600
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Outside Spy
Oct 14, 2026
Duration not stated
Senior Full Stack Engineer - £600/650 Outside IR35 at Eames Consulting, London Area, £600-£650 per day
£600 - £650 per day
Outside Spy London Area, United Kingdom
Senior Full Stack Engineer. £600-£650 per day | Outside IR35 We're supporting a leading financial services organisation in the search for a Senior Full Stack Engineer to join a product-focused team building customer-facing digital solutions. Experience within Insurance, InsurTech, FinTech, Banking, or another regulated industry is highly desirable. This is a hands-on role where you'll take ownership of delivery across the full software lifecycle, from design and development through to deployment, optimisation and support, working with modern cloud-native technologies on Microsoft Azure . Key Requirements Strong full stack engineering experience TypeScript and React (Angular or Vue also welcome) Backend development with .NET, Node.js, Java or Python Azure cloud-native application development REST APIs, microservices and event-driven architecture CI/CD, automated testing and DevOps practices Docker, Kubernetes and Terraform Experience delivering...
Outside Spy
Oct 23, 2026
Duration not stated
Staff Full Stack Engineer (Contract) | Rust & Java (Primary) | React & Python (Secondary) | Fully Remote (UK-based) | £500-600+/day | Outside IR35 | 12-Month Contract at Owen Thomas | B Corp™, United Kingdom, £500-£600+ per day
£500 - £600+ per day
Outside Spy Remote (United Kingdom)
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...
Outside Spy
Oct 22, 2026
Duration not stated
Staff Full Stack Engineer (Contract) | Rust & Java (Primary) | React & Python (Secondary) | Fully Remote (UK-based) | £500-600+/day | Outside IR35 | 12-Month Contract at Owen Thomas | B Corp™, United Kingdom, £500-£600+ per day
£500 - £600+ per day
Outside Spy Remote (United Kingdom)
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...
Outside Spy
Oct 20, 2026
Duration not stated
Staff Full Stack Engineer (Contract) | Rust & Java (Primary) | React & Python (Secondary) | Fully Remote (UK-based) | £500-600+/day | Outside IR35 | 12-Month Contract at Owen Thomas | B Corp™, United Kingdom, £500-£600+ per day
£500 - £600+ per day
Outside Spy Remote (United Kingdom)
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...
Outside Spy
Oct 15, 2026
Duration not stated
Staff Full Stack Engineer (Contract) | Rust & Java (Primary) | React & Python (Secondary) | Fully Remote (UK-based) | £500-600+/day | Outside IR35 | 12-Month Contract at Owen Thomas | B Corp™, United Kingdom, £500-£600+ per day
£500 - £600+ per day
Outside Spy Remote (United Kingdom)
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...
Outside Spy
Oct 14, 2026
Duration not stated
Staff Full Stack Engineer (Contract) | Rust & Java (Primary) | React & Python (Secondary) | Fully Remote (UK-based) | £500-600+/day | Outside IR35 | 12-Month Contract at Owen Thomas | B Corp™, United Kingdom, £500-£600+ per day
£500 - £600+ per day
Outside Spy Remote (United Kingdom)
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...
Outside Spy
Oct 23, 2026
6 Months or more
Full-Stack Software Engineer SC Cleared at Sanderson Recruitment Plc, London, 6 Months, to £500 per day + Outside IR - 35
£400 - £500 per day
Outside Spy London, UK
Full Stack Software Engineer £500/day - Outside IR35 - 6-Month Contract - Active SC Clearance Required - Remote-First The Opportunity We're seeking an experienced Full Stack Software Engineer to join a major digital transformation programme focused on modernising critical public services through the delivery of secure, user-centred digital solutions. This is an opportunity to join a programme at a pivotal stage of delivery, helping replace complex manual processes with modern digital services. You'll work within a collaborative, multidisciplinary team in a fast-paced Agile environment where innovation, continuous improvement and the adoption of AI-enabled tooling are actively encouraged. If you enjoy building products from the ground up, thrive in evolving delivery environments and are excited by the potential of AI to enhance software delivery, this role could be an excellent fit. Responsibilities Design, build and maintain modern digital services across Front End and Back...
Outside Spy
Oct 22, 2026
Duration not stated
Full Stack DevOps Engineer at ISR RECRUITMENT LIMITED, United Kingdom, £500 to £525 per Day
£500 - £525 per day
Outside Spy United Kingdom
Python/React Full Stack DevOps Engineer 3-month contract (initially) Remote Working Outside-IR35 Market Rates (c£500 to £525 per day) The Opportunity: We are looking for DevOps Engineer with Full Stack experience, specifically with Python and React, to support the development of a public sector digital service, where you will be working within an Agile team, combining hands-on development with automation and operational delivery to build secure, reliable software. This opportunity suits engineers who enjoy building applications and taking responsibility for how they are tested, deployed and supported and is a hands-on role combining full stack software engineering, cloud deployment and DevOps practices. You will take ownership of changes throughout the delivery lifecycle, from backlog refinement and development through testing, deployment and operational handover, working across React and TypeScript interfaces, Python Back-End services and AWS infrastructure, taking...
Outside Spy
Oct 22, 2026
up to 6 Months
Python/React DevOps Engineer | Outside IR35 | Remote at SR2 - Socially Responsible Recruitment, London, 3 Months, £450-£500 per day
£450 - £500 per day
Outside Spy Remote (London, UK)
Python/React DevOps Engineer | Outside IR35 | Remote We are looking for DevOps Engineer with Full Stack experience, specifically with Python and React, to support the development of a public sector digital service. This opportunity suits engineers who enjoy building applications and taking responsibility for how they are tested, deployed, and supported. The Role You'll work across React and TypeScript interfaces, Python Back End services and AWS infrastructure, taking features from initial refinement through to production. Working within an Agile team, you'll combine hands-on development with automation and operational delivery to build secure, reliable software. Key Responsibilities Develop accessible, responsive front ends using React and TypeScript. Build Python/FastAPI services, REST APIs and integrations with other systems. Deliver database changes, including data models, migrations and performance improvements. Configure and maintain AWS deployments, covering...
Outside Spy
Oct 21, 2026
Duration not stated
Technical Author - SC Eligible: Government Projects at ByDesign Secure, Bristol, £550 a day
£550 per day
Outside Spy Bristol, UK
This role is delivered within secure environments. Candidates must be eligible for UK SC clearance and hold UK citizenship. Join the Mission At ByDesign Secure, we believe that world-class security shouldn't be an afterthought—it should be the foundation. We are an independent, outputs-based consultancy dedicated to solving complex data assurance challenges in the UK public sector. We are a lean, expert team focused on delivering high-impact outcomes. If you are a self-starter who thrives on autonomy and wants your work to contribute to secure, nationally significant programmes, we want to talk to you. About the Opportunity We’re looking for an experienced and collaborative Technical Author to work closely with our architecture, engineering and software development teams. This is not simply a proofreading role: you will evaluate the logic, structure and readability of deeply technical documents and help ensure complex information is accurate, clear and...
Outside Spy
Oct 21, 2026
Duration not stated
Technical Author - SC Eligible: Government Projects at ByDesign Secure, Bristol, £550 per day
£550 per day
Outside Spy Bristol, UK
This role is delivered within secure environments. Candidates must be eligible for UK SC clearance and hold UK citizenship. Join the Mission At ByDesign Secure, we believe that world-class security shouldn't be an afterthought—it should be the foundation. We are an independent, outputs-based consultancy dedicated to solving complex data assurance challenges in the UK public sector. We are a lean, expert team focused on delivering high-impact outcomes. If you are a self-starter who thrives on autonomy and wants your work to contribute to secure, nationally significant programmes, we want to talk to you. About the Opportunity We’re looking for an experienced and collaborative Technical Author to work closely with our architecture, engineering and software development teams. This is not simply a proofreading role: you will evaluate the logic, structure and readability of deeply technical documents and help ensure complex information is accurate, clear and accessible. You’ll...
Outside Spy
Oct 20, 2026
Duration not stated
Full Stack Developer (Kotlin/Typescript) - Public Sector Transformation - ACTIVE SC CLEARANCE at Tecknuovo Ltd, London, £540 per day
£540 per day
Outside Spy London, UK
Full Stack Developer (Kotlin & TypeScript) - Public Sector Transformation - OUTSIDE IR35 - ACTIVE SC CLEARANCE REQUIRED Tecknuovo is a deliberately different digital consultancy, delivering secure, modern technology solutions while upskilling client teams to ensure zero long-term dependency. We are seeking an experienced Full Stack Developer (Kotlin & TypeScript) to support a major public sector transformation programme focused on the modernisation and decomposition of Legacy probation systems. This role would suit senior software engineers with strong experience delivering cloud-native applications, APIs and digital services within complex enterprise environments. You'll play a key role in building the next generation of platforms and services that will replace critical Legacy systems and support the wider transformation programme. Working as part of a multidisciplinary delivery team, you'll collaborate with architects, product teams, engineers and...
Outside Spy
Oct 19, 2026
6 Months or more
SC Cleared Full Stack Engineer (Kotlin) - Outside IR35 - £540 per day at Tecknuovo Ltd, London, 6 Months, £540 per day
£540 per day
Outside Spy London, UK
Full Stack Engineer Tecknuovo is a digital delivery partner with a Deliberately Different approach. This means we focus on people, not technology. We move at pace and ensure Zero Dependency on us at the end of each project. What you'll be working towards We are currently looking to engage with SC Cleared Full Stack Engineers on a large organisation project within the public sector. The successful candidate will have experience with: Kotlin Containerised Services Typescript (Or other UI Development) AWS (Preferable) *Please note this requires active Security Clearance* Your Journey : Passing the TeckBar The Teckbar is a benchmark we set for our associates to make sure we consistently deploy bestin-class teams to work with our clients. Talent Screen: Our Talent Team will be in touch to talk Tecknuovo, the role & values Tech Screen: We'll focus on real-life experience and deep dive into your technical background Offer: Job Done!...
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