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33 react developer jobs found

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Outside Spy
Jun 19, 2026
Duration not stated
React Developer - 3 Month Contract - Hybrid/Manchester at Adecco, Manchester, £Contract Rate
Outside Spy Manchester, UK
Front End React Developer - 3 Month Contract - Hybrid/Manchester We are seeking a Senior Front End React Developer for a 3 month project based in Manchester. You will build scalable frontend code and contribute to features that power a digital web build. You will work closely with cross-functional teams delivering scalable, high-performance applications. You will also contribute to product roadmap planning from a technical perspective, take ownership of the testing strategy, including unit and integration testing Lead and evolve the software development lifecycle (SDLC.) Type: 3 Month Contract Day Rate: Market Rates (Outside IR35) Location: Hybrid/Manchester Start: ASAP Skills * Strong experience building complex frontend systems using React and other modern JavaScript/TypeScript frameworks. * Strong knowledge of testing approaches (unit, integration, and end-to-end) and overall code quality best practices. * Experience delivering CI/CD change into cloud-based environments....
Outside Spy
Jun 19, 2026
Duration not stated
React Developer at AgileGrid Solutions, United Kingdom, £Contract Rate
Outside Spy United Kingdom
About The Company Adecco is a leading global staffing and workforce solutions provider dedicated to connecting talented professionals with innovative companies across various industries. With a strong presence in over 60 countries, Adecco prides itself on delivering tailored staffing solutions, workforce management, and consulting services that drive organizational success. Our commitment to excellence, integrity, and customer satisfaction has established us as a trusted partner for both job seekers and employers alike. We continuously strive to foster a dynamic and inclusive work environment that promotes growth, development, and opportunity for all our employees. About The Role We are currently seeking a highly skilled Front End React Developer for a 3-month contract position based in Manchester. This role offers an exciting opportunity to work on a cutting-edge digital web build, contributing to the development of scalable and high-performance frontend applications. As...
Outside Spy
Jun 19, 2026
up to 6 Months
React Developer - 3 Month Contract - Hybrid/Manchester at Adecco, Manchester, 3 Months, £Contract Rate
Outside Spy Manchester, UK
Front End React Developer - 3 Month Contract - Hybrid/Manchester We are seeking a Senior Front End React Developer for a 3 month project based in Manchester. You will build scalable Front End code and contribute to features that power a digital web build. You will work closely with cross-functional teams delivering scalable, high-performance applications. You will also contribute to product roadmap planning from a technical perspective, take ownership of the testing strategy, including unit and integration testing Lead and evolve the software development life cycle (SDLC.) Type: 3 Month Contract Day Rate: Market Rates (Outside IR35) Location: Hybrid/Manchester Start: ASAP Skills * Strong experience building complex Front End systems using React and other modern JavaScript/TypeScript frameworks. * Strong knowledge of testing approaches (unit, integration, and end-to-end) and overall code quality best practices. * Experience delivering CI/CD change into cloud-based...
Outside Spy
Jun 19, 2026
Duration not stated
React Developer - 3 Month Contract - Hybrid/Manchester at Adecco , Manchester, £Negotiable Rate
Outside Spy Manchester, UK
Front End React Developer - 3 Month Contract - Hybrid/Manchester We are seeking a Senior Front End React Developer for a 3 month project based in Manchester. You will build scalable frontend code and contribute to features that power a digital web build. You will work closely with cross-functional teams delivering scalable, high-performance applications. You will also contribute to product roadmap planning from a technical perspective, take ownership of the testing strategy, including unit and integration testing Lead and evolve the software development lifecycle (SDLC.) Type: 3 Month Contract Day Rate: Market Rates (Outside IR35) Location: Hybrid/Manchester Start: ASAP Skills * Strong experience building complex frontend systems using React and other modern JavaScript/TypeScript frameworks. * Strong knowledge of testing approaches (unit, integration, and end-to-end) and overall code quality best practices. * Experience delivering CI/CD change into...
Outside Spy
Jun 15, 2026
6 Months or more
React Native Developer | Contract | London at Synergetic, London, 6 Months, £Negotiable Rate
Outside Spy London, UK
React Native Developer Contract London (3 days on-site) Outside IR35 Hybrid - 3 days/week in central London A large multinational business is building out a customer-facing mobile product and needs a React Native developer who can ship, not just maintain. You'll own features end to end across iOS and Android from a single codebase, working alongside an established product and Back End team. What you'll do Build and ship features in React Native (TypeScript) for a live, high-traffic mobile app Work with native modules, you know when JS won't cut it Integrate with secure APIs and the data-handling constraints that come with them Contribute to release pipelines, testing, and app store deployment What we need Strong commercial React Native experience with production apps live in the stores TypeScript, and comfort dropping into native iOS/Android when required Someone who works well in a contract setting: lands quickly, communicates,...
Outside Spy
Jun 12, 2026
6 Months or more
Web Developer - (React, TypeScript) - Outside IR35 at SDL Solutions Limited, London, 12 Months, £Contract Rate
Outside Spy London, UK
Web Developer - (React, TypeScript & C#/.NET) We are looking for a Web Developer with strong React and TypeScript experience and some knowledge of C# and .NET to join a development team on an initial 12-month contract. Responsibilities Develop and maintain web applications using React and TypeScript. Contribute to Back End development using C# and .NET. Create and maintain automated tests. Review pull requests and support code quality standards. Perform integration testing and bug fixing. Update tasks and testing information within Azure DevOps. Produce and maintain technical documentation. Participate in Agile ceremonies including stand-ups, sprint planning, estimation sessions, and retrospectives. Support DevOps pipelines and deployment activities. Attend team meetings as required. Required Skills Commercial experience with React and TypeScript. Knowledge of C# and .NET. Experience with Git and source control. Understanding of...
Outside Spy
Jun 11, 2026
Duration not stated
Web Developer - (React / TypeScript) at SDL Solutions Limited, London, £Negotiable Rate
Outside Spy London, UK
Web Developer - (React, TypeScript & .NET) - Hybrid - Outside IR35 We are looking for a Web Developer with strong React and TypeScript experience and some knowledge of C# and .NET to join a development team on an initial 12-month contract. Responsibilities Develop and maintain web applications using React and TypeScript. Contribute to backend development using C# and .NET. Create and maintain automated tests. Review pull requests and support code quality standards. Perform integration testing and bug fixing. Update tasks and testing information within Azure DevOps. Produce and maintain technical documentation. Participate in Agile ceremonies including stand-ups, sprint planning, estimation sessions, and retrospectives. Support DevOps pipelines and deployment activities. Attend team meetings as required. Required Skills Commercial experience with React and TypeScript. Knowledge of C# and .NET. Experience with...
Outside Spy
Jun 10, 2026
Duration not stated
React Native Developer at Wave Group, London Area, £Contract Rate
Outside Spy London Area, United Kingdom
React Native Developer – Contract London (Hybrid) | Outside IR35 About the Company Our client is a fast-growing fintech building the next generation of financial products. With a product-first culture and a strong engineering ethos, they're on a mission to make financial services smarter, faster, and more accessible. You'll be joining a lean, high-calibre team where your work ships and your impact is visible. The Role We're looking for an experienced React Native Developer to join our client on a contract basis. You'll be working across a consumer-facing mobile product, contributing to feature development, performance improvements, and technical delivery within an agile environment. This is a hands-on engineering role suited to someone who takes ownership, moves quickly, and holds their own in a strong technical team. What You'll Be Doing Building and shipping features across iOS and Android using React Native Collaborating closely with product,...
Outside Spy
Jun 19, 2026
Duration not stated
Lead x 1 and Senior x 1 Java Developer - Hybrid - OUTSIDE IR35 at LA International Computer Consultants Ltd, Bellshill, £Contract Rate
Outside Spy Bellshill, UK
Lead / Senior Java Developer - Hybrid - Glasgow based MUST BE COMMUTABLE - OUTSIDE IR35 Lead / Senior Java Developer Responsibilities Design, develop, test, and support enterprise Java applications. Build and enhance microservices, REST APIs, and web-based applications. Contribute to architecture discussions, technical design reviews, and solution development. Develop scalable solutions using Java, Spring Boot, and modern development frameworks. Collaborate closely with Product Owners, Business Analysts, Testers, Architects, and cross-functional teams. Participate in code reviews and promote engineering excellence across the development lifecycle. Support CI/CD pipelines and automated deployment processes. Mentor developers and contribute to technical leadership activities. Ensure high standards of quality through TDD, unit testing, and automated testing frameworks. Lead / Senior Java Developer Skills and Experience Strong commercial experience with Java 8 or above. Expertise in...
Outside Spy
Jun 17, 2026
Duration not stated
CRO Developer - Contract at Harnham, London, £300-£375 per day
£300 - £375 per day
Outside Spy London, England, United Kingdom
CRO Developer (Contract) Analytics Agency, CRO London - 1 day per week in office £300-£375 per day - Outside IR35 This is an opportunity to join a high-performing experimentation team delivering impactful conversion rate optimisation projects across a diverse client base. The team is growing quickly and has already exceeded its annual targets, creating a need for additional contract support on a flexible, part-time basis. You will contribute to a steady pipeline of web experimentation initiatives while working in a fast-paced, collaborative agency environment. The Company They are a specialist digital consultancy focused on optimisation, analytics and search. Their work spans three core disciplines, blending experimentation with broader customer experience and performance insights. They partner closely with media and marketing teams to translate on-site behaviour into actionable CRO strategies. The environment is delivery-focused, collaborative, and...
Outside Spy
Jun 17, 2026
Duration not stated
Full Stack Engineer at Fynity, London Area, £400 per day
£400 per day
Outside Spy London Area, United Kingdom
Senior Full-Stack Engineer - 6 Months Contract - up to £400 Per day Outside IR35 - Retail We’re working with a well-established retail business currently undergoing a major internal transformation programme, and they’re looking for a Senior Full Stack Developer to join on a 6 month contract. The business has been operating successfully for over 10 years and combines the stability of an established company with the pace and culture of a start-up environment. Decisions happen quickly, there’s very little hierarchy, and engineers are trusted to own delivery and make a tangible impact. This role will focus heavily on building modern internal applications and operational tooling that support large-scale scheduling, fulfilment, logistics, optimisation and customer service functions across the business. The Role You'll play a key role in developing modern React-based internal applications alongside supporting .NET backend services, helping replace legacy workflows with...
Outside Spy
Jun 16, 2026
Duration not stated
.Net Engineer at Fruition Group, Leeds, £Contract Rate
Outside Spy Leeds, UK
Software Developer - C#/.NET & React (Contract) Initial 3 Month Contract Competitive Day Rate, Outside IR35 Leeds/Hybrid, candidates must be based locally to Leeds We're currently working with a growing organisation looking to bring in an experienced Software Developer to support a mix of modern application development and Legacy system maintenance. This is an excellent opportunity for a contractor who enjoys working across a broad technical landscape, contributing to both new feature development and the ongoing improvement of existing systems. You'll be joining a collaborative development environment, working across a modern Microsoft stack with React on the front end, while also supporting applications built in VB.NET and VBA. Key Responsibilities Design, develop and maintain applications using C#/.NET (Core & Framework) Build and enhance responsive Front End applications using React Support and maintain existing VB.NET applications Develop and...
Outside Spy
Jun 15, 2026
6 Months or more
Lead x 1 and Senior x 1 Java Developer - Hybrid - OUTSIDE IR35 at LA International Computer Consultants Ltd, Glasgow, 6 Months, £Negotiable Rate
Outside Spy Glasgow, Scotland, UK
Lead/Senior Java Developer - Hybrid - Glasgow based MUST BE COMMUTABLE - OUTSIDE IR35 Lead/Senior Java Developer Responsibilities Design, develop, test, and support enterprise Java applications. Build and enhance microservices, REST APIs, and web-based applications. Contribute to architecture discussions, technical design reviews, and solution development. Develop scalable solutions using Java, Spring Boot, and modern development frameworks. Collaborate closely with Product Owners, Business Analysts, Testers, Architects, and cross-functional teams. Participate in code reviews and promote engineering excellence across the development lifecycle. Support CI/CD pipelines and automated deployment processes. Mentor developers and contribute to technical leadership activities. Ensure high standards of quality through TDD, unit testing, and automated testing frameworks. Lead/Senior Java Developer Skills and Experience Strong commercial experience with Java 8 or above. Expertise in...
Outside Spy
Jun 15, 2026
Duration not stated
Full-Stack Engineer at Click, London, to £400 per day
£300 - £400 per day
Outside Spy London, UK
Senior Full Stack Developer - .NET/React Outside IR35 Contract Up to £400 per day Initial 3-6 Month Contract | Immediate Start - 1 day a week in London We're working with a well-established retail business currently undergoing a major internal transformation programme and they're looking for a Senior Full Stack Developer to join immediately on an Outside IR35 contract basis. The business has been operating successfully for over 10 years and combines the stability of an established company with the pace and culture of a start-up environment. Decisions happen quickly, there's very little hierarchy, and engineers are trusted to own delivery and make an impact. This role will focus heavily on building modern internal applications and operational tooling that support large-scale scheduling, optimisation and customer service functions across the business. The Role You'll play a key role in developing modern React-based internal applications alongside supporting .NET Back...
Outside Spy
Jun 15, 2026
Duration not stated
Lead x 1 and Senior x 1 Java Developer - Hybrid - OUTSIDE IR35 at LA International Computer Consultants Ltd, Bellshill, £Contract Rate
Outside Spy Bellshill, UK
Lead / Senior Java Developer - Hybrid - Glasgow based MUST BE COMMUTABLE - OUTSIDE IR35 Lead / Senior Java Developer Responsibilities Design, develop, test, and support enterprise Java applications. Build and enhance microservices, REST APIs, and web-based applications. Contribute to architecture discussions, technical design reviews, and solution development. Develop scalable solutions using Java, Spring Boot, and modern development frameworks. Collaborate closely with Product Owners, Business Analysts, Testers, Architects, and cross-functional teams. Participate in code reviews and promote engineering excellence across the development lifecycle. Support CI/CD pipelines and automated deployment processes. Mentor developers and contribute to technical leadership activities. Ensure high standards of quality through TDD, unit testing, and automated testing frameworks. Lead / Senior Java Developer Skills and Experience Strong commercial experience with Java 8 or above. Expertise in...
Outside Spy
Jun 12, 2026
Duration not stated
Salesforce Full Stack Developer - Public Sector - Outside IR35 at Tecknuovo Ltd, Remote, £Contract Rate
Outside Spy Remote (Remote , UK)
Overview Hands-on engineer delivering Salesforce solutions across the platform, supporting integrations and front-to-back functionality while prioritising configuration over customisation. Rate: £575 outside IR35 Key Responsibilities Build and configure Salesforce solutions across the full stack Develop and consume APIs for system integrations Support data access and reporting using SQL where required Collaborate with Architects to deliver scalable OOTB solutions Essential Skills Salesforce development and configuration experience API integration experience Understanding of Salesforce data model and platform limits Experience with GDS Front End and React Nice to Have Boomi/Boomie SQL Experience reducing technical debt through OOTB solutions
Outside Spy
Jun 11, 2026
Duration not stated
HFT FX QA Engineer / Test Lead - Contract at Wagglyn, London Area, £Contract Rate
Outside Spy London Area, United Kingdom
Role Summary Wagglyn is looking for an experienced QA Engineer / Test Lead to work with the existing engineering team on the testing and release readiness of its MVP trading platform. This is a hands-on contract role for someone who has tested complex financial or real-time systems before. It is not a generic web QA role and not a manual-testing-only role.   Scope The contractor will help define and execute the QA process across the front end, backend services, market data, execution flows, deployment environments and operational readiness. The role involves working with engineering, product and stakeholders to make sure releases are testable, repeatable and safe to promote through UAT and production-like environments. QA here is about proving the system behaves safely when data is live, services reconnect, orders are sent, risk state changes and deployments happen.   Profile ·      Hands-on QA engineer who has tested complex financial or real-time systems ·...
Outside Spy
Jun 11, 2026
Duration not stated
Senior JavaScript Engineer at Ventula Consulting, Greater London, £575 per day
£575 per day
Outside Spy Greater London, England, United Kingdom
Senior JavaScript Engineer contract - Outside IR35 - £575 per day Leading Ecommerce client is now recruiting a talented ‘Full Stack JavaScript Developer’ who is proficient in front and back-end development. (React/Node.js), with an emphasis on backend Node work initially. This role will be joining their platform team, designing, and building the foundations of which our clients innovative web and mobile applications run on. What will a day in the role entail? Working as an integral part of an agile team contributing towards the planning and development of systems/platforms. Collaborating with engineers, product owners and business analysts to define solutions, ways of working and share knowledge across the department. Reviewing code and providing support to members of your team. Working on client-facing applications in react / next.js Designing and building Node.js / GraphQL APIs. The ideal Senior JavaScript Engineer Senior level experience in modern...
Outside Spy
Jun 10, 2026
Duration not stated
Software Developer at Adalta Recruitment Solutions Ltd, Manchester, £450-£500 per day
£450 - £500 per day
Outside Spy Manchester, UK
Contract Developer with Golang experience Rate: £450 - £500 p/d Outside IR35 Location: Manchester - 2 days per week onsite, 3 days from home Duration: 6 months initially We're looking for an experienced Developer with experience in Golang to join a fast-moving engineering team on an initial 6-month contract. This role will focus on building scalable applications, microservices, and Real Time data solutions within a modern technical environment. The key requirement for this role is strong commercial experience with Golang. Experience with React and modern Front End development would be highly beneficial but is not essential. Key Responsibilities Develop and maintain web, Back End, and desktop applications Develop scalable Golang microservices and Back End solutions Contribute to React Front End applications and user interfaces where required Work with C#.NET, SQL Server, and modern web technologies Collaborate with cross-functional teams to deliver...
Outside Spy
Jun 19, 2026
Duration not stated
DevOps Engineer - Azure / Kubernetes / Terraform (Outside IR35) at Experis, Greater London, £Contract Rate
Outside Spy Greater London, UK
Outside IR35,UK Wide Flexiablity, DevOps, Azure, React, .Net, Terraform, Azure, My leading client is leading client seeking an experienced DevOps Engineer to join on an Outside IR35 contract. This is a hands-on role focused on building and operating cloud-native platforms on Microsoft Azure, with a strong emphasis on Terraform, Kubernetes (AKS), and Azure DevOps. You'll work closely with engineering teams to enable modern application delivery, particularly across C#/.NET, React, and PostgreSQL-based solutions. Key Responsibilities: Design and build Azure infrastructure using Terraform (Infrastructure as Code); deploy and manage workloads on Azure Kubernetes Service (AKS); lead containerisation initiatives using Docker, Kubernetes, and Helm; build and optimise CI/CD pipelines in Azure DevOps; manage container lifecycle using Azure Container Registry (ACR); support workloads across AKS, ACI, and Azure App Services; implement secure, scalable environments using Azure Policy, RBAC,...
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