526 to 550 of 758 React Jobs in London

in the education and training sector Leading by example in writing high-quality, maintainable, and testable code using C# (.NET) for APIs and modern JavaScript frameworks, especially Angular and React Maintaining development deadlines, provide accurate time estimates, and deliver work at high speed and quality standards Actively participating in resolving live issues and supporting the release process, including last-minute … services (e.g., App Services, storage, identity) to help deliver scalable, cloud-first solutions What we are looking for The ideal candidate is proficient in modern JavaScript frameworks (Angular or React), RESTful C# APIs, and familiar with Azure cloud services and multi-environment configurations. You will be expected to participate in code reviews, guide junior developers, and collaborate closely with Product More ❯

Are you a seasoned full-stack developer ready to lead with NodeJS, React, and modern PHP? Looking for a senior-level role where your code powers real-time, high-traffic platforms? Want to shape scalable architecture while mentoring others in a high-performing tech team? Our client is hiring a Senior Software Developer to take a hands-on, influential role … in building scalable, event-driven applications used by global audiences. If you're fluent in NodeJS , ReactJS , and PHP 8+ , and want to stretch your expertise within a collaborative and ambitious engineering environment - this role was made for you. Why This Role is Great Own complex, high-impact projects —you’ll be trusted to design and deliver performant systems in … production environments. Work across the full stack with NodeJS (NestJS), ReactJS, and modern PHP frameworks like Laravel or Symfony. Make architectural decisions and contribute to the evolution of event-based platforms using CQRS and microservices. Be a mentor and leader —share your experience with teammates and contribute to a strong culture of knowledge-sharing. Collaborate cross-functionally with Product, DevOps More ❯

Are you a seasoned full-stack developer ready to lead with NodeJS, React, and modern PHP? Looking for a senior-level role where your code powers real-time, high-traffic platforms? Want to shape scalable architecture while mentoring others in a high-performing tech team? Our client is hiring a Senior Software Developer to take a hands-on, influential role … in building scalable, event-driven applications used by global audiences. If you're fluent in NodeJS , ReactJS , and PHP 8+ , and want to stretch your expertise within a collaborative and ambitious engineering environment - this role was made for you. Why This Role is Great Own complex, high-impact projects —you’ll be trusted to design and deliver performant systems in … production environments. Work across the full stack with NodeJS (NestJS), ReactJS, and modern PHP frameworks like Laravel or Symfony. Make architectural decisions and contribute to the evolution of event-based platforms using CQRS and microservices. Be a mentor and leader —share your experience with teammates and contribute to a strong culture of knowledge-sharing. Collaborate cross-functionally with Product, DevOps More ❯

Are you a seasoned full-stack developer ready to lead with NodeJS, React, and modern PHP? Looking for a senior-level role where your code powers real-time, high-traffic platforms? Want to shape scalable architecture while mentoring others in a high-performing tech team? Our client is hiring a Senior Software Developer to take a hands-on, influential role … in building scalable, event-driven applications used by global audiences. If you're fluent in NodeJS , ReactJS , and PHP 8+ , and want to stretch your expertise within a collaborative and ambitious engineering environment - this role was made for you. Why This Role is Great Own complex, high-impact projects —you’ll be trusted to design and deliver performant systems in … production environments. Work across the full stack with NodeJS (NestJS), ReactJS, and modern PHP frameworks like Laravel or Symfony. Make architectural decisions and contribute to the evolution of event-based platforms using CQRS and microservices. Be a mentor and leader —share your experience with teammates and contribute to a strong culture of knowledge-sharing. Collaborate cross-functionally with Product, DevOps More ❯

Are you a seasoned full-stack developer ready to lead with NodeJS, React, and modern PHP? Looking for a senior-level role where your code powers real-time, high-traffic platforms? Want to shape scalable architecture while mentoring others in a high-performing tech team? Our client is hiring a Senior Software Developer to take a hands-on, influential role … in building scalable, event-driven applications used by global audiences. If you're fluent in NodeJS , ReactJS , and PHP 8+ , and want to stretch your expertise within a collaborative and ambitious engineering environment - this role was made for you. Why This Role is Great Own complex, high-impact projects —you’ll be trusted to design and deliver performant systems in … production environments. Work across the full stack with NodeJS (NestJS), ReactJS, and modern PHP frameworks like Laravel or Symfony. Make architectural decisions and contribute to the evolution of event-based platforms using CQRS and microservices. Be a mentor and leader —share your experience with teammates and contribute to a strong culture of knowledge-sharing. Collaborate cross-functionally with Product, DevOps More ❯

system. Optimizing performance and ensuring maintainability, scalability, and code quality. This is a 5-days a week in-office role. Requirements And Experience We Are Looking For Expert in React & TypeScript, with strong CSS and responsive design skills. Experience with React Query, Storybook, and Material UI (or similar). Proven ability to optimize performance and build interactive, user-friendly applications. More ❯

system. Optimizing performance and ensuring maintainability, scalability, and code quality. This is a 5-days a week in-office role. Requirements And Experience We Are Looking For Expert in React & TypeScript, with strong CSS and responsive design skills. Experience with React Query, Storybook, and Material UI (or similar). Proven ability to optimize performance and build interactive, user-friendly applications. More ❯

system. Optimizing performance and ensuring maintainability, scalability, and code quality. This is a 5-days a week in-office role. Requirements And Experience We Are Looking For Expert in React & TypeScript, with strong CSS and responsive design skills. Experience with React Query, Storybook, and Material UI (or similar). Proven ability to optimize performance and build interactive, user-friendly applications. More ❯

system. Optimizing performance and ensuring maintainability, scalability, and code quality. This is a 5-days a week in-office role. Requirements And Experience We Are Looking For Expert in React & TypeScript, with strong CSS and responsive design skills. Experience with React Query, Storybook, and Material UI (or similar). Proven ability to optimize performance and build interactive, user-friendly applications. More ❯

. You have some experience with web frameworks like FastAPI , Django or Flask , we use FastAPI . Experience with Javascript/Typescript and a modern JS framework such as React , Angular or Vue.js . We generally use React & NextJS Strong engineering principles & practices : design patterns, testing, clean code and a good reviewerPrevious experience working in a product-focused team A More ❯

partner with backend and AI teams, have a direct impact on product direction, and set the standard for modern frontend practices. Essential Experience: ☑️ 5+ years of frontend development with React & TypeScript in production ☑️ Proven track record architecting complex SPAs with modern routing (React Router v7) ☑️ Strong knowledge of state management (Zustand, TanStack Query) ☑️ Skilled in Vite, pnpm, and Git workflows … optimisation, and responsive design ☑️ Strong experience with authentication flows (Azure MSAL/OAuth2) ☑️ Excellent communicator, able to mentor and influence frontend standards Nice to Have: ✨ Experience with AI SDK React and streaming endpoint integrations ✨ Familiarity with Tailwind CSS v4 and Shadcn/ui component systems ✨ Knowledge of CI/CD pipelines (GitHub Actions) and containerisation (Docker) ✨ AWS deployment experience (CloudFront More ❯

partner with backend and AI teams, have a direct impact on product direction, and set the standard for modern frontend practices. Essential Experience: ☑️ 5+ years of frontend development with React & TypeScript in production ☑️ Proven track record architecting complex SPAs with modern routing (React Router v7) ☑️ Strong knowledge of state management (Zustand, TanStack Query) ☑️ Skilled in Vite, pnpm, and Git workflows … optimisation, and responsive design ☑️ Strong experience with authentication flows (Azure MSAL/OAuth2) ☑️ Excellent communicator, able to mentor and influence frontend standards Nice to Have: ✨ Experience with AI SDK React and streaming endpoint integrations ✨ Familiarity with Tailwind CSS v4 and Shadcn/ui component systems ✨ Knowledge of CI/CD pipelines (GitHub Actions) and containerisation (Docker) ✨ AWS deployment experience (CloudFront More ❯

full-stack applications at scale. Strong backend development skills in Python or Go, with experience designing APIs and working with databases such as PostgreSQL and Redis. Proven experience with React and TypeScript, including component libraries and data-fetching tools like react-query. Familiarity with infrastructure-as-code tools and cloud platforms (preferably AWS). Experience with CI/CD pipelines More ❯

full-stack applications at scale. Strong backend development skills in Python or Go, with experience designing APIs and working with databases such as PostgreSQL and Redis. Proven experience with React and TypeScript, including component libraries and data-fetching tools like react-query. Familiarity with infrastructure-as-code tools and cloud platforms (preferably AWS). Experience with CI/CD pipelines More ❯

full-stack applications at scale. Strong backend development skills in Python or Go, with experience designing APIs and working with databases such as PostgreSQL and Redis. Proven experience with React and TypeScript, including component libraries and data-fetching tools like react-query. Familiarity with infrastructure-as-code tools and cloud platforms (preferably AWS). Experience with CI/CD pipelines More ❯

full-stack applications at scale. Strong backend development skills in Python or Go, with experience designing APIs and working with databases such as PostgreSQL and Redis. Proven experience with React and TypeScript, including component libraries and data-fetching tools like react-query. Familiarity with infrastructure-as-code tools and cloud platforms (preferably AWS). Experience with CI/CD pipelines More ❯

Software Engineer - Python/FastAPI/React/Functional programming/Typescript Location: London, UK (Hybrid) Type: Full-time Level: Mid to Senior Salary: £70,000 to £100,000 Company: VC back Startup About the Role: This startup is building a cutting-edge platform to transform how engineers design physical products. Instead of creating one solution at a time, this … and Google across Software Engineering, Data Science, Theoretical Physics, and Computational Geometry. Opportunities: Frontend or Backend Tech Stack within the engineering environment: Backend: Python, FastAPI, Pydantic, PostgreSQL, Docker Frontend: React, TypeScript, Vite Infrastructure: GitHub Actions, GCP, Kubernetes (optional) Paradigms: Functional programming, async APIs, event-driven architecture Responsibilities Build and maintain backend services using FastAPI and Python for geometry, simulation, and … data workflows Develop responsive, performant frontends using React and TypeScript Work closely with domain experts (engineers, designers) to translate complex physical problems into usable software features Follow functional programming practices to write testable, composable code Own features from idea to implementation to deployment Contribute to architectural decisions in a fast-moving, early-stage product Requirements Bachelor's degree in Computer More ❯

industry and first-hand experience of defining its future.Select your locationSelect your locationIndustriesChoose a partner with intimate knowledge of your industry and first-hand experience of defining its future.London# React JS Developer or Lead ReactJS Developer - Knutsford UK Get The Future You Want! Choosing Capgemini means choosing a company where you will be empowered to shape your career in the … a keen eye for detail and a commitment to delivering accessible, high-performance web applications. Your Role Develop and maintain responsive user interfaces using JavaScript , jQuery , HTML5 , CSS3 , and ReactJS . Implement and optimize styles using CSS preprocessors such as SASS or LESS. Work with JavaScript frameworks including Node.js to build scalable front-end solutions. Integrate APIs and handle asynchronous … unit testing to ensure code reliability and maintainability. Optimize network performance and front-end load times for enhanced user experience. Your Profile Strong proficiency in JavaScript , HTML5 , CSS3 , and ReactJS . Experience with CSS preprocessors (e.g., SASS, LESS). Solid understanding of Node.js and modern JS frameworks. Familiarity with AJAX , JSON , and RESTful APIs. Knowledge of accessibility standards (WCAG, ARIA More ❯

user at the forefront. Collaborate closely with Product Owners, QA, and wider stakeholders, translating technical concepts for non-technical audiences. Balance leadership with hands-on development work – primarily in React , with some exposure to Python back-end development considered a bonus. Drive continuous improvement in front-end processes, frameworks, and tools to elevate product quality and performance. About You Expert … in modern JavaScript (ES6+) and TypeScript, with deep knowledge of HTML5, CSS/SASS/LESS, and responsive design. Extensive experience with React and its ecosystem (Hooks, Context, State Management, Routers, Next.js). Proven experience as a hands-on technical leader, guiding teams, setting engineering direction, and mentoring engineers. Strong understanding of UI/UX principles and collaborative experience with … design teams using tools like Figma. Solid knowledge of consuming and integrating with RESTful APIs. Experienced in Test Driven Development (TDD), with practical skills in Jest, React Testing Library, Cypress, or Playwright. Comfortable in agile, product-led environments, with experience in CI/CD workflows. Proven problem solver, capable of making decisions independently while collaborating effectively with cross-functional teams. More ❯

user at the forefront. Collaborate closely with Product Owners, QA, and wider stakeholders, translating technical concepts for non-technical audiences. Balance leadership with hands-on development work – primarily in React , with some exposure to Python back-end development considered a bonus. Drive continuous improvement in front-end processes, frameworks, and tools to elevate product quality and performance. About You Expert … in modern JavaScript (ES6+) and TypeScript, with deep knowledge of HTML5, CSS/SASS/LESS, and responsive design. Extensive experience with React and its ecosystem (Hooks, Context, State Management, Routers, Next.js). Proven experience as a hands-on technical leader, guiding teams, setting engineering direction, and mentoring engineers. Strong understanding of UI/UX principles and collaborative experience with … design teams using tools like Figma. Solid knowledge of consuming and integrating with RESTful APIs. Experienced in Test Driven Development (TDD), with practical skills in Jest, React Testing Library, Cypress, or Playwright. Comfortable in agile, product-led environments, with experience in CI/CD workflows. Proven problem solver, capable of making decisions independently while collaborating effectively with cross-functional teams. More ❯

Role: Software Engineer (Java, TypeScript, JavaScript, NodeJS, ReactJS, Python) Location: Remote working with some meetings at offices either in Manchester or London. IR35 status: Outside Length of contract: 5 months initial contract (with a view to possible extension) Overview We are seeking a Software Engineer to support the delivery and maintenance of shared engineering components and templates across our client … serving thousands of users, with a preference for experience in Backstage. Design and implement efficient, reusable GitLab CI pipelines across multiple tech stacks. Develop solutions using TypeScript, JavaScript, NodeJS, ReactJS, Python, and Java. Automate deployments using GitLab CI/CD, Terraform, and EKS. Navigate specific change and governance processes to deliver code and changes to the estate. Coordinate stakeholders and … embed continuous improvement practices across engineering teams. Skills & Experience Strong software development background, especially with TypeScript, JavaScript, NodeJS, ReactJS, Python, and Java. Experience with enterprise-scale engineering environments. Familiarity with DevOps practices and performance measurement. Excellent stakeholder coordination and governance capabilities. If you are interested in the role and would like to apply, please click on the link for immediate More ❯

Role: Software Engineer (Java, TypeScript, JavaScript, NodeJS, ReactJS, Python) Location: Remote working with some meetings at offices either in Manchester or London. IR35 status: Outside Length of contract: 5 months initial contract (with a view to possible extension) Overview We are seeking a Software Engineer to support the delivery and maintenance of shared engineering components and templates across our client … serving thousands of users, with a preference for experience in Backstage. Design and implement efficient, reusable GitLab CI pipelines across multiple tech stacks. Develop solutions using TypeScript, JavaScript, NodeJS, ReactJS, Python, and Java. Automate deployments using GitLab CI/CD, Terraform, and EKS. Navigate specific change and governance processes to deliver code and changes to the estate. Coordinate stakeholders and … embed continuous improvement practices across engineering teams. Skills & Experience Strong software development background, especially with TypeScript, JavaScript, NodeJS, ReactJS, Python, and Java. Experience with enterprise-scale engineering environments. Familiarity with DevOps practices and performance measurement. Excellent stakeholder coordination and governance capabilities. If you are interested in the role and would like to apply, please click on the link for immediate More ❯

Improve performance, reliability, and scalability of the platform Embrace AI tools to boost productivity and automate wherever possible Tech Stack Languages : TypeScript (core), Python/Ruby (data flow) Frontend : React preferred; Angular, Vue, or Node.js welcome Infrastructure : AWS Databases : Neo4j (nice to have) Integrations : Shopify About You Strong experience with TypeScript on the backend Confident managing complex API integrations (Shopify … a big plus) Comfortable with React , Python , or similar technologies Experienced in cloud-first environments (AWS) Background in startups or scale-ups Passionate about automation and leveraging AI in development Bonus Points For: Graph databases like Neo4j Experience with payment gateways or fraud detection systems Knowledge of MongoDB/Mongoose Familiarity with CATIA or other CAD system integrations Experience with More ❯

Improve performance, reliability, and scalability of the platform Embrace AI tools to boost productivity and automate wherever possible Tech Stack Languages : TypeScript (core), Python/Ruby (data flow) Frontend : React preferred; Angular, Vue, or Node.js welcome Infrastructure : AWS Databases : Neo4j (nice to have) Integrations : Shopify About You Strong experience with TypeScript on the backend Confident managing complex API integrations (Shopify … a big plus) Comfortable with React , Python , or similar technologies Experienced in cloud-first environments (AWS) Background in startups or scale-ups Passionate about automation and leveraging AI in development Bonus Points For: Graph databases like Neo4j Experience with payment gateways or fraud detection systems Knowledge of MongoDB/Mongoose Familiarity with CATIA or other CAD system integrations Experience with More ❯

Improve performance, reliability, and scalability of the platform Embrace AI tools to boost productivity and automate wherever possible Tech Stack Languages : TypeScript (core), Python/Ruby (data flow) Frontend : React preferred; Angular, Vue, or Node.js welcome Infrastructure : AWS Databases : Neo4j (nice to have) Integrations : Shopify About You Strong experience with TypeScript on the backend Confident managing complex API integrations (Shopify … a big plus) Comfortable with React , Python , or similar technologies Experienced in cloud-first environments (AWS) Background in startups or scale-ups Passionate about automation and leveraging AI in development Bonus Points For: Graph databases like Neo4j Experience with payment gateways or fraud detection systems Knowledge of MongoDB/Mongoose Familiarity with CATIA or other CAD system integrations Experience with More ❯