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15 full stack developer engineer jobs found

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full stack developer engineer
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Outside Spy
Nov 03, 2026
Duration not stated
Full Stack Developer Engineer - Cyber DevOps at ECS Resource Group Ltd, Greater London, £Contract Rate
£450 per day
Outside Spy Greater London, UK
Full Stack Developer Engineer - Cyber DevOps Rate: £450 (Outside IR35) Location: Remote Contract: 3-6 months Python | FastAPI | JavaScript | React | AWS We're looking for an experienced Full Stack Developer to join a growing Cyber DevOps team, developing innovative applications, automation and engineering tools used across Cyber Security and Network environments. This is an opportunity to work on a varied range of development projects, taking ownership across the full software development lifecycle, from designing and building backend services and APIs through to frontend development, cloud deployment and production support. You'll be working with modern technologies to build secure, scalable and reliable solutions that support critical engineering environments. What will you be doing? Designing, developing and maintaining full-stack applications and internal engineering tools. Building backend services, REST APIs and automation solutions using Python and FastAPI....
Outside Spy
Nov 03, 2026
Duration not stated
Full Stack Developer Engineer - Cyber DevOps at ECS, Multiple Locations, £Contract Rate
Outside Spy United Kingdom
Full Stack Developer Engineer - Cyber DevOps Rate: £450 (Outside IR35) Location: Remote Contract: 3-6 months Python FastAPI JavaScript React AWS We're looking for an experienced Full Stack Developer to join a growing Cyber DevOps team, developing innovative applications, automation and engineering tools used across Cyber Security and Network environments. This is an opportunity to work on a varied range of development projects, taking ownership across the full software development lifecycle, from designing and building backend services and APIs through to frontend development, cloud deployment and production support. You'll be working with modern technologies to build secure, scalable and reliable solutions that support critical engineering environments. What will you be doing? Designing, developing and maintaining full-stack applications and internal engineering tools. Building backend services, REST APIs and automation solutions using Python and FastAPI....
Outside Spy
Nov 03, 2026
Duration not stated
Full Stack Developer Engineer at ECS, Multiple Locations, £Contract Rate
Outside Spy United Kingdom
Full Stack Developer Engineer - Cyber DevOps Rate: £450 - £500 per day IR35: Outside IR35 Location: Fully Remote Start: ASAP We're looking for an experienced Full Stack Developer Engineer to join a Cyber DevOps team, developing internal applications, automation, tooling and new solutions used across cyber and network environments. This is a hands-on role covering the full software development lifecycle, with a particular focus on Python/FastAPI backend development alongside JavaScript/React frontend development. Key Responsibilities Design, develop and maintain full-stack applications and internal engineering tools Build backend services, APIs and automation using Python and FastAPI Develop frontend applications using JavaScript and React Work with SQL and PostgreSQL databases Develop, deploy and support applications within AWS Build and maintain CI/CD pipelines Troubleshoot application, infrastructure and integration issues Apply secure...
Outside Spy
Nov 03, 2026
Duration not stated
Full Stack Developer Engineer - Cyber DevOps at ECS, South East, £Contract Rate
Outside Spy South East, UK
Full Stack Developer Engineer - Cyber DevOps Rate: £450 (Outside IR35) Location: Remote Contract: 3-6 months Python FastAPI JavaScript React AWS We're looking for an experienced Full Stack Developer to join a growing Cyber DevOps team, developing innovative applications, automation and engineering tools used across Cyber Security and Network environments click apply for full job details
Outside Spy
Nov 03, 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
Nov 02, 2026
6 Months or more
Staff Full Stack Engineer (Contract) | Rust & Java (Primary) | React & Python (Secondary) at Owen Thomas, Fully Remote (UK), £500-600+ per day Outside IR35
£500 - £600 per day
Outside Spy Remote
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...
Outside Spy
Nov 02, 2026
Duration not stated
Full Stack Application Developer at Keystream Group Limited, South East London, £Contract Rate
Outside Spy East London, UK
KeyStream are looking to find an experienced Senior Full Stack Application Developer to support a major NHS digital transformation programme. This is an exciting contract opportunity for an accomplished software developer with strong Microsoft technologies experience to contribute to the delivery of innovative digital solutions that support clinical and operational services across a large healthcare environment. Working within a busy Digital Applications function, you will be responsible for designing, developing and enhancing applications, integrations and cloud-based solutions that improve user experience, operational efficiency and service delivery. You will also have the opportunity to work with emerging technologies, including AI-enabled solutions, as part of ongoing digital innovation initiatives. Responsibilities Design, develop and support full stack applications and digital solutions. Build and maintain APIs, integrations and automated workflows. Work closely...
Outside Spy
Nov 02, 2026
Duration not stated
Full Stack Developer (.NET React) at Tenth Revolution Group, London, £Contract Rate
Outside Spy London, UK
6 month contract, fully remote Full Stack Developer - .NET and React Up to £350 per day outside IR35 A retail company are hiring for a Senior Full Stack Engineer to join their order fulfilment team to help design, build and evolve the digital platform. This is a hands-on role where you'll work closely with product and engineering teams to solve real business problems and deliver impactful digital experiences. It is a modern engineering function that uses agentic AI tools throughout its development process. Responsibilities Design build and maintain scalable secure and high-performing E-commerce applications using React C# .NET and Azure Deliver end-to-end features across the stack from Front End experience through to Back End services Work in short iterative cycles alongside product and E-commerce teams Contribute to the design of cloud-native architectures on Microsoft Azure Build and maintain robust APIs and services using .NET Develop responsive...
Outside Spy
Oct 30, 2026
6 Months or more
Staff Full Stack Engineer (Contract) | Rust & Java (Primary) | React & Python (Secondary) at Owen Thomas, Remote, 12 Months, £500-600+ per day
£500 - £650 per day
Outside Spy Remote
Staff Full Stack Engineer (Contract) | Rust & Java (Primary) | React & Python (Secondary) | Fully Remote (UK-based) | £500-600+/day | Outside IR35 | 12-Month Contract 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...
Outside Spy
Oct 27, 2026
Duration not stated
Quality Assurance Engineer at Vaultier, Remote, £280 per day
£280 per day
Outside Spy Remote
About the job Contract: Outside IR35 Commitment: 2-3 days a week Additional days: £280 per day, subject to prior written approval Location: UK-based, remote Start date: 20 November 2026 Term: Initial MVP contract with the possibility of extension   ABOUT VAULTIER Vaultier is building a private collection-management platform for wealthy collectors and the people authorised to manage their collections. The product will hold sensitive information about valuable pieces, including ownership, value, location, documents, actions and access permissions.   THE ROLE Vaultier is looking for an independent QA engineer to test its responsive web MVP.   You will review completed features against approved requirements, identify defects and risks, and provide clear evidence of whether each release is ready. You will work independently from the full-stack engineer while collaborating with Product, UX and...
Outside Spy
Oct 26, 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 26, 2026
Duration not stated
Full Stack Developer (.NET React) at Tenth Revolution Group, London, £300-£350 per day
£300 - £350 per day
Outside Spy London, UK
6 month contract, fully remote Full Stack Developer - .Net and React Up to £350 per day outside IR35 A retail company are hiring for a Senior Full Stack Engineer to join their order fulfilment team to help design, build and evolve the digital platform. This is a hands-on role where you 'll work closely with product and engineering teams to solve real business problems and deliver impactful digital experiences. It is a modern engineering function that uses agentic AI tools throughout its development process. Responsibilities Design build and maintain scalable secure and high-performing ecommerce applications using React C# .NET and Azure Deliver end-to-end features across the stack from frontend experience through to backend services Work in short iterative cycles alongside product and ecommerce teams Contribute to the design of cloud-native architectures on Microsoft Azure Build and maintain robust APIs and services using .NET Develop...
Outside Spy
Oct 27, 2026
6 Months or more
Full Stack Engineer - Ecommerce Giant (Global household name) - Remote at Ventula Consulting, Remote, 6 Months, £600 per day
£600 per day
Outside Spy Remote (Remote , UK)
Full Stack Engineer - Ecommerce Giant (Global household name) - Remote As a Full Stack Engineer is required by one of the worlds highest transaction websites, you will help customers understand and enjoy the benefits of theirbenefits and drive renewal, primarily on our web and app platforms, connecting to core systems. The role will be a full stack role, comprising Front End (React, JavaScript, Typescript) and Back End functionality (Java Web Services). It will be deployed to a tailored version of the AWS tech stack. In this role, you will contribute to exciting, high-impact initiatives. You will help build and improve innovative features and you will have direct experience of using AI Agents in an Agile framework. Our preferred approach is for engineers to define specifications or intents (the what) plans (the how), specifications (acceptance criteria), and task (detailed tasks where the AI will need a steer') in a format an AI Agent can understand. The generated code will...
Outside Spy
Oct 26, 2026
Duration not stated
Azure DevOps Engineer at Cognitive Group | Part of the Focus Cloud Group, London Area, £Contract Rate
Outside Spy London Area, United Kingdom
Senior Azure DevOps Engineer / Contract (Outside IR35) / London / 6-month initial contract We are currently partnering with a London-based end client that manages £20 billion in assets. Known for its high-performance, institutional-grade financial operations, the company is looking to onboard a seasoned Azure DevOps Engineer to strengthen and automate its modern cloud, data, and application platform. Client & Assignment Context Embedded within the Technology & Infrastructure team of a premier private debt and alternative investments house, you will collaborate closely with platform leads, data teams, and full-stack software engineers. Your primary focus will be automating Azure and Snowflake infrastructure as code, maintaining a production-grade Apache Airflow platform hosted on AKS, and optimizing CI/CD workflows across both GitHub and Azure DevOps. Key Responsibilities Infrastructure as Code (IaC): Design, build, and maintain Azure and...
Outside Spy
Oct 26, 2026
6 Months or more
Full Stack Engineer - Manchester- Ecommerce Giant at Ventula Consulting, Manchester, 6 Months, £600 per day
£600 per day
Outside Spy Manchester, UK
Full Stack Engineer - Manchester- Ecommerce Giant As a Full Stack Engineer on the Engage team, you will help customers understand and enjoy the benefits of theirbenefits and drive renewal, primarily on our web and app platforms, connecting to core systems. The role will be a full stack role, comprising Front End (MFE and BFF) and Back End functionality (Java Web Services). It will be deployed to a tailored version of the AWS tech stack. In this role, you will contribute to exciting, high-impact initiatives. You will help build and improve innovative features and you will have direct experience of using AI Agents in an Agile framework. Our preferred approach is for engineers to define specifications or intents (the what) plans (the how), specifications (acceptance criteria), and task (detailed tasks where the AI will need a steer') in a format an AI Agent can understand. The generated code will need to be reviewed, tested etc. and the Engineer will ultimately take overall...
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