1 to 25 of 353 Permanent React Jobs in London

Front-End Developer – React Native/React – AI Product Up to £75k + 10% bonus + equity London (Hybrid - 3 days a week) A cutting-edge AI company shaping the future of strategic insight is looking for a Front-End Developer to join their fast-moving team. You’ll work closely with designers and engineers to build beautiful, responsive user … interfaces across mobile and web, using React, React Native, and modern JavaScript frameworks. This is a great opportunity for someone who enjoys innovation, ownership, and building visually engaging products. You'll be joining a collaborative, design-focused team solving some of the most interesting problems in natural language processing and knowledge visualisation. What You’ll Be Doing Building responsive front … end experiences in React, React Native, and Expo Collaborating closely with the Lead Visual Designer on clean and consistent UI/UX Developing new user-facing features and shipping high-quality code Working with cloud-based hosting services to support scalable applications Staying up to date with front-end technologies and contributing ideas to improve development Pair programming, code reviewing More ❯

Front-End Developer – React Native/React – AI Product Up to £75k + 10% bonus + equity London (Hybrid - 3 days a week) A cutting-edge AI company shaping the future of strategic insight is looking for a Front-End Developer to join their fast-moving team. You’ll work closely with designers and engineers to build beautiful, responsive user … interfaces across mobile and web, using React, React Native, and modern JavaScript frameworks. This is a great opportunity for someone who enjoys innovation, ownership, and building visually engaging products. You'll be joining a collaborative, design-focused team solving some of the most interesting problems in natural language processing and knowledge visualisation. What You’ll Be Doing Building responsive front … end experiences in React, React Native, and Expo Collaborating closely with the Lead Visual Designer on clean and consistent UI/UX Developing new user-facing features and shipping high-quality code Working with cloud-based hosting services to support scalable applications Staying up to date with front-end technologies and contributing ideas to improve development Pair programming, code reviewing More ❯

Front-End Developer – React Native/React – AI Product Up to £75k + 10% bonus + equity London (Hybrid - 3 days a week) A cutting-edge AI company shaping the future of strategic insight is looking for a Front-End Developer to join their fast-moving team. You’ll work closely with designers and engineers to build beautiful, responsive user … interfaces across mobile and web, using React, React Native, and modern JavaScript frameworks. This is a great opportunity for someone who enjoys innovation, ownership, and building visually engaging products. You'll be joining a collaborative, design-focused team solving some of the most interesting problems in natural language processing and knowledge visualisation. What You’ll Be Doing Building responsive front … end experiences in React, React Native, and Expo Collaborating closely with the Lead Visual Designer on clean and consistent UI/UX Developing new user-facing features and shipping high-quality code Working with cloud-based hosting services to support scalable applications Staying up to date with front-end technologies and contributing ideas to improve development Pair programming, code reviewing More ❯

Front-End Developer – React Native/React – AI Product Up to £75k + 10% bonus + equity London (Hybrid - 3 days a week) A cutting-edge AI company shaping the future of strategic insight is looking for a Front-End Developer to join their fast-moving team. You’ll work closely with designers and engineers to build beautiful, responsive user … interfaces across mobile and web, using React, React Native, and modern JavaScript frameworks. This is a great opportunity for someone who enjoys innovation, ownership, and building visually engaging products. You'll be joining a collaborative, design-focused team solving some of the most interesting problems in natural language processing and knowledge visualisation. What You’ll Be Doing Building responsive front … end experiences in React, React Native, and Expo Collaborating closely with the Lead Visual Designer on clean and consistent UI/UX Developing new user-facing features and shipping high-quality code Working with cloud-based hosting services to support scalable applications Staying up to date with front-end technologies and contributing ideas to improve development Pair programming, code reviewing More ❯

Graduate/Junior Developer, Python, JavaScript, PHP - London (Tech stack: Python, JavaScript, PHP, React, React Native, Django, Postgres, Docker, Agile) In 2012, our client launched a social messaging platform that has been taking the US by storm. After an extremely successful period, our client has decided to hop across the Atlantic to expand their sphere of influence and establish a … roles would be suitable for Graduate/Junior Developers who have recently graduated from university and have a basic understanding of any of the following technologies: Python, JavaScript, PHP, React, React Native, Django, Postgres, Docker, and Agile; which might have been acquired as part of your degree course or through a placement year in industry. All Graduate/Junior Developer More ❯

and implementation Experience building on container platforms such as Docker, Kubernetes Front-end skills Experience of using at least one of these JavaScript frameworks to create modern front-ends - React.js, Angular or Vue HTML, CSS, JavaScript (ES6) or TypeScript Webpack or Gulp A client-side Unit Testing framework e.g., Mocha or Jest Other technical skills API Management and Documentation (Swagger.io More ❯

of Agile methodologies and SDLC best practices. Strong problem-solving, analytical, and communication skills. Preferred: Experience in banking, payments, or financial services domain. Knowledge of front-end technologies (Angular, React, JavaScript) for full-stack exposure. Understanding of security protocols, authentication (OAuth2, JWT), and compliance requirements. More ❯

of Agile methodologies and SDLC best practices. Strong problem-solving, analytical, and communication skills. Preferred: Experience in banking, payments, or financial services domain. Knowledge of front-end technologies (Angular, React, JavaScript) for full-stack exposure. Understanding of security protocols, authentication (OAuth2, JWT), and compliance requirements. More ❯

Head of Engineering (Hands on- Node, Typescript, React, React Native) £90,000 - £120,000 + Stock Options Hybrid | 2 days per week in Canary Wharf We're looking for a hands-on Head of Engineering to work with our client a brand new and innovative social media app. Founded 3 years ago they have over 35k users and looking to … the roadmap : Own the engineering strategy, lead architecture decisions, and manage both internal teams and outsourced partners. Stay hands-on : Write production-quality code across Node.js, Express, GraphQL, TypeScript, React, and React Native . Deliver front-end excellence : Build fast, responsive web apps using Vite, React Query, Context API, and CSS frameworks . Integrate emerging tech : Incorporate AI/ML More ❯

are treated fairly and with respect. What we're looking for Technology-focused degree preferred, or equivalent demonstrable experience. Extensive knowledge of: JavaScript, TypeScript, NodeJS, AWS SDK & CDK, Python, React, HTML/CSS, Java, Spring, Terraform/CloudFormation Hands-on experience: Building serverless applications in AWS Building microservices in Java (Spring Boot) Strong understanding of clean code principles, design patterns More ❯

cloud platforms and modern development practices. Must-Have Skills: Strong hands-on experience with ASP.NET Core and C# in a production environment Solid understanding of modern frontend frameworks like React, Angular, or Blazor/Razor Familiarity with cloud platforms such as Microsoft Azure or AWS Experience with CI/CD tools such as GitHub Actions, GitLab, Jenkins, or Azure DevOps More ❯

cloud platforms and modern development practices. Must-Have Skills: Strong hands-on experience with ASP.NET Core and C# in a production environment Solid understanding of modern frontend frameworks like React, Angular, or Blazor/Razor Familiarity with cloud platforms such as Microsoft Azure or AWS Experience with CI/CD tools such as GitHub Actions, GitLab, Jenkins, or Azure DevOps More ❯

with data scientists, commercial teams, and ops leaders. Hard Skills Required Software Engineering: Strong in at least one modern language (JavaScript/TypeScript, Java, Python) Web & Product Development: Frameworks (React, Node.js, Django/Flask) AI, GenAI and LLMs: OpenAI, Gemini, Grok, Llama Agentic AI: Frameworks (langchain, langgraph, Google ADK) AI enabled code tooling: Cursor, Windsurf, GitHub copilot AI powered platform More ❯

related discipline - or equivalent practical experience. 8+ years of professional experience in software development, with demonstrable technical leadership. Essential Experience : Strong hands-on experience with Node.js, TypeScript/JavaScript, React (or Remix), SQL/NoSQL databases, and CSS. Proven track record of leading Agile development teams. Experience designing and building cloud-based, scalable applications. Familiarity with test-driven development (TDD More ❯

3+ years of hands-on experience with modern software architecture and scalable frameworks. Proficiency in Java (Spring Boot), Python, or similar. Proficiency in JavaScript/TypeScript with frameworks like React (preferred), Angular, Vue, or similar. Solid understanding of scalable, service-oriented architectures in a cloud or hybrid setting. Experience with PostgreSQL and/or NoSQL databases. Excellent written and verbal More ❯

Python - familiarity with these is a strong advantage. Solid knowledge of relational databases and proficiency in SQL (e.g., MySQL). Practical experience in modern front-end technologies including TypeScript, React, and CSS. Experience architecting solutions using cloud infrastructure, particularly AWS. Competency with standard development and collaboration tools (e.g., Git, GitLab, CI/CD workflows). Excellent communication and stakeholder management More ❯

and continuously enhance our engineering practices. Excellent problem-solving and analytical skills, with experience applying modern software design patterns. We work full stack and so proficiency with JavaScript (ES6+), React and Typescript along with a good understanding of (or willingness to learn) HTML and CSS is a big plus. Familiarity with modern architectural patterns such as micro-frontends and backend More ❯

UI testing cucumber, nightwatch ) Nice to have skills AWS Knowledge of Open Source BPMN workflow engines (Camunda, Activiti or Flowable) Experience on a front-end javascript framework such as React, Angular or Vue.js RedHat OpenShift for container orchestration Knowledge of NCSC’s 14 cloud security principles SC Clearance Zaizi works with UK Central Government departments on a range of projects. More ❯

Agile environment. Skills Required 15+ years of strong experience in full-stack software development. Backend: Proficiency in Java (17+) , Spring Boot , Node.js , and RESTful APIs . Frontend: Expertise in React , TypeScript , HTML5 , CSS3 , and other modern frontend frameworks. DevOps: Familiarity with CI/CD tools such as GitHub , Jenkins , Harness , and containerization using Docker and Kubernetes . Cloud Platforms: Experience More ❯

Agile environment. Skills Required 15+ years of strong experience in full-stack software development. Backend: Proficiency in Java (17+) , Spring Boot , Node.js , and RESTful APIs . Frontend: Expertise in React , TypeScript , HTML5 , CSS3 , and other modern frontend frameworks. DevOps: Familiarity with CI/CD tools such as GitHub , Jenkins , Harness , and containerization using Docker and Kubernetes . Cloud Platforms: Experience More ❯

Agile environment. Skills Required 15+ years of strong experience in full-stack software development. Backend: Proficiency in Java (17+) , Spring Boot , Node.js , and RESTful APIs . Frontend: Expertise in React , TypeScript , HTML5 , CSS3 , and other modern frontend frameworks. DevOps: Familiarity with CI/CD tools such as GitHub , Jenkins , Harness , and containerization using Docker and Kubernetes . Cloud Platforms: Experience More ❯

Agile environment. Skills Required 15+ years of strong experience in full-stack software development. Backend: Proficiency in Java (17+) , Spring Boot , Node.js , and RESTful APIs . Frontend: Expertise in React , TypeScript , HTML5 , CSS3 , and other modern frontend frameworks. DevOps: Familiarity with CI/CD tools such as GitHub , Jenkins , Harness , and containerization using Docker and Kubernetes . Cloud Platforms: Experience More ❯

Kubernetes, and cloud platforms such as AWS, GCP or Azure Understanding of UX principles HTML, CSS, and related web technologies Experience with modern JavaScript libraries and tooling, such as React, Redux, Webpack Any server side development languages such as Java/KotlinYou will be working closely with the iOS development teams, and will also work with our website and microservice More ❯

related discipline - or equivalent practical experience. 8+ years of professional experience in software development, with demonstrable technical leadership. Essential Experience : Strong hands-on experience with Node.js, TypeScript/JavaScript, React (or Remix), SQL/NoSQL databases, and CSS. Proven track record of leading Agile development teams. Experience designing and building cloud-based, scalable applications. Familiarity with test-driven development (TDD More ❯

related discipline - or equivalent practical experience. 8+ years of professional experience in software development, with demonstrable technical leadership. Essential Experience : Strong hands-on experience with Node.js, TypeScript/JavaScript, React (or Remix), SQL/NoSQL databases, and CSS. Proven track record of leading Agile development teams. Experience designing and building cloud-based, scalable applications. Familiarity with test-driven development (TDD More ❯