1 to 25 of 75 Senior React Developer Jobs in London

Social network you want to login/join with: Senior Frontend Developer (React), london col-narrow-left Client: Oliver Bernard Location: london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 5 Posted: 05.05.2025 Expiry Date: 19.06.2025 … col-wide Job Description: Senior Frontend Developer (React) 2-3 days p/week in London Up to £85k plus equity Would you like the opportunity to join an organisation looking to revolutionise the construction space? They have significantly increased their customer base … recently and are now actively seeking a Senior Frontend Developer (React). As a Senior Frontend (React) Developer, you will be responsible for taking their product to the next level, direct reporting to their Head of More ❯

Senior Frontend Developer (React) 2-3 days p/week in London Up to £85k plus equity Would you like the opportunity to join an organisation looking to revolutionise the construction space? They have significantly increased their customer base recently and are now … actively seeking a Senior Frontend Developer (React). As a Senior Frontend (React) Developer, you will be responsible for taking their product to the next level, direct reporting to their Head of Engineering. You will be … data team. The team are built around working together, collaborating when they can, and encourage sharing ideas. Key requirements: Experience with their stack: TypeScript, React, Next.js. AWS. Enjoy coming to the office and working in a small team. Vercel deployments from GitHub, with GitHub Actions is a bonus. If More ❯

Senior Frontend Developer (React) 2-3 days p/week in London Up to £85k plus equity Would you like the opportunity to join an organisation looking to revolutionise the construction space? They have significantly increased their customer base recently and are now … actively seeking a Senior Frontend Developer (React). As a Senior Frontend (React) Developer, you will be responsible for taking their product to the next level, direct reporting to their Head of Engineering. You will be … data team. The team are built around working together, collaborating when they can, and encourage sharing ideas. Key requirements: Experience with their stack: TypeScript, React, Next.js. AWS. Enjoy coming to the office and working in a small team. Vercel deployments from GitHub, with GitHub Actions is a bonus. If More ❯

Senior React Developer (TypeScript) – Build Complex Energy Platforms Senior React Developer (TypeScript) – Build Complex Energy Platforms 2 weeks ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. … Senior React Developer (TypeScript) – Build Complex Energy Platforms Are you a React expert ready to take on high-impact, data-intensive challenges? Join a leading organisation in the energy sector, building robust internal applications that support mission-critical control room operations. This … complex data streams, and delivering powerful tools that help ensure the stability of the energy grid. Design and deliver scalable front-end systems using React, TypeScript, and Next.js Work with large datasets and integrate secure APIs/microservices Modernise and refactor legacy codebases to enterprise standards Collaborate in a More ❯

senior react developer required by a successful technology company whose office is in staines. hybrid working - 3 days per week in the office the successful senior react developer is likely to have a relevant degree and … a similar role. the senior software developer will join an experienced team developing modern interactive user interfaces using react with typescript. key experience react typescript experience in any of the following areas would be advantageous but is not a prerequisite good software More ❯

Senior Developer/Engineer (React TypeScript) London to £80k Are you a skilled Software Developer with strong React and TypeScript skills combined with a good appreciation of financial markets and technology? You could be joining a growing, global, Fintech … have a strong knowledge of software engineering best practices and Computer Science fundamentals such as OOP, Data Structures, Design Patterns You have expertise with React and strong TypeScript skills You have experience with data visualisation and have worked on complex systems You have a good understanding of financial markets … Computer Science or similar technical discipline What's in it for you: As a Senior Developer/Engineer (React TypeScript) you will receive a comprehensive package including: Salary to £80k Private Medical Healthcare including Dental and Vision cover Pension Share Option scheme Employee More ❯

Senior Developer/Engineer (React TypeScript) London to £80k Are you a skilled Software Developer with strong React and TypeScript skills combined with a good appreciation of financial markets and technology? You could be joining a growing, global, Fintech … have a strong knowledge of software engineering best practices and Computer Science fundamentals such as OOP, Data Structures, Design Patterns You have expertise with React and strong TypeScript skills You have experience with data visualisation and have worked on complex systems You have a good understanding of financial markets … Computer Science or similar technical discipline What's in it for you: As a Senior Developer/Engineer (React TypeScript) you will receive a comprehensive package including: Salary to £80k Private Medical Healthcare including Dental and Vision cover Pension Share Option scheme Employee More ❯

Senior Developer/Engineer (React TypeScript) London to £80k Are you a skilled Software Developer with strong React and TypeScript skills combined with a good appreciation of financial markets and technology? You could be joining a growing, global, Fintech … have a strong knowledge of software engineering best practices and Computer Science fundamentals such as OOP, Data Structures, Design Patterns You have expertise with React and strong TypeScript skills You have experience with data visualisation and have worked on complex systems You have a good understanding of financial markets … Computer Science or similar technical discipline What's in it for you: As a Senior Developer/Engineer (React TypeScript) you will receive a comprehensive package including: Salary to £80k Private Medical Healthcare including Dental and Vision cover Pension Share Option scheme Employee More ❯

Senior Developer/Engineer (React TypeScript) London to £80k Are you a skilled Software Developer with strong React and TypeScript skills combined with a good appreciation of financial markets and technology? You could be joining a growing, global, Fintech … have a strong knowledge of software engineering best practices and Computer Science fundamentals such as OOP, Data Structures, Design Patterns You have expertise with React and strong TypeScript skills You have experience with data visualisation and have worked on complex systems You have a good understanding of financial markets … Computer Science or similar technical discipline What's in it for you: As a Senior Developer/Engineer (React TypeScript) you will receive a comprehensive package including: Salary to £80k Private Medical Healthcare including Dental and Vision cover Pension Share Option scheme Employee More ❯

Social network you want to login/join with: Senior React Developer | Highly-Autonomous Role | Leading Multi-Strategy Hedge Fund | Innovation | Leading Compensation Package | London, london col-narrow-left Client: Location: london, United Kingdom Job Category: Other - EU work permit required: Yes col … narrow-right Job Views: 1 Posted: 06.06.2025 Expiry Date: 21.07.2025 col-wide Job Description: Senior React Developer | Highly-Autonomous Role | Leading Multi-Strategy Hedge Fund | Innovation | Leading Compensation Package | London We’re supporting a pioneering technology team within one of the most technically … unit that builds internal tooling and platforms used across everything from People Ops to Investment Research. The Opportunity They’re looking for a seasoned React Developer to take real ownership of frontend projects — working on high-visibility platforms used by internal stakeholders across the business. You More ❯

Mid-Level Frontend React Developer - AI Technology Salary: £50,000-80,000 Location: 2 days a week in London Mid React Developer - would you like the opportunity to work for a game-changing AI company based in London? This is an exciting … opportunity for a Mid-level React Developer to join an organisation creating significant value for their customers. As a Mid-level React Developer, you will work alongside and be guided by their lead Frontend Engineer, working on enhancing and optimising their analytics … user-friendly web apps. Requirements: At least 3+ years of experience building scalable and reliable Frontends in an agile manner. High proficiency with JavaScript, React/Redux. Experince with Python and Node.js are beneficial. If you're a Mid-level React Developer who has a More ❯

Social network you want to login/join with: Senior React Developer to enhance and optimize their React component library, London col-narrow-left Client: S.i. Systems Location: London, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right … Job Reference: 7c5e34d801be Job Views: 2 Posted: 02.06.2025 Expiry Date: 17.07.2025 col-wide Job Description: Our client is seeking a Senior React Developer to enhance and optimize their React component library Duration - 3 months with a possibility of extension Some travel to … Montreal may be required, T&L paid by the client Must Haves: Strong experience with React and front-end development. Expertise in building and optimizing React component libraries. Strong debugging and troubleshooting skills. Nice to have: French Responsibilities: Improve and maintain the React component library, ensuring it More ❯

Social network you want to login/join with: Senior React Developer (TypeScript) – Build Complex Energy Platforms, west london col-narrow-left Client: GL Global Location: west london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views … Posted: 04.06.2025 Expiry Date: 19.07.2025 col-wide Job Description: Senior React Developer (TypeScript) – Build Complex Energy Platforms Are you a React expert ready to take on high-impact, data-intensive challenges? Join a leading organisation in the energy sector, building robust internal … complex data streams, and delivering powerful tools that help ensure the stability of the energy grid. Design and deliver scalable front-end systems using React, TypeScript, and Next.js Work with large datasets and integrate secure APIs/microservices Modernise and refactor legacy codebases to enterprise standards Collaborate in a More ❯

Social network you want to login/join with: Senior React Developer (TypeScript) – Build Complex Energy Platforms, south west london col-narrow-left Client: GL Global Location: south west london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right … Job Views: 3 Posted: 04.06.2025 Expiry Date: 19.07.2025 col-wide Job Description: Senior React Developer (TypeScript) – Build Complex Energy Platforms Are you a React expert ready to take on high-impact, data-intensive challenges? Join a leading organisation in the energy sector … complex data streams, and delivering powerful tools that help ensure the stability of the energy grid. Design and deliver scalable front-end systems using React, TypeScript, and Next.js Work with large datasets and integrate secure APIs/microservices Modernise and refactor legacy codebases to enterprise standards Collaborate in a More ❯

Social network you want to login/join with: Senior React Developer, south west london col-narrow-left Client: Cognitive Group | Part of the Focus Cloud Group Location: south west london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow … right Job Views: 1 Posted: 04.06.2025 Expiry Date: 19.07.2025 col-wide Job Description: We are seeking a skilled and experienced Senior React Developer to join a high-performing data and digital engineering team on a strategic project for a leading UK bank. This … reviews, design discussions, and agile ceremonies. Key Skills & Experience: Strong proficiency in JavaScript and TypeScript . Advanced knowledge of React.js and familiarity with modern React patterns (hooks, context, etc.). Solid understanding of HTML5 , CSS3 , and responsive web design. Experience working with .NET , C# , or similar backend frameworks (beneficial More ❯

Senior React Developer Location: Becrypt Head Office (London)/Remote Responsible to: Architect, Device Management About Us: Becrypt are an agile London-based UK SME with 25 years cyber security expertise. We provide High Assurance cyber security products and services. Job Purpose: We … committed to work collaboratively, solving problems as a team, providing sophisticated designs and yield quality products. Principal duties and responsibilities: Develop, test and maintain React components for user interfaces, while also implementing backend logic, including cryptographic operations, RESTful API interactions and other related tasks Take ownership of front-end … Employee referral scheme Additional Information: Role will be subject to an employment screening process and will require security clearance Tagged as: coding, electri, javascript, react developer, react.js, sdlc, typescript #J-18808-Ljbffr More ❯

Senior React & Sitecore Developer ?? What is the project about? We're embarking on an exciting digital transformation initiative focused on enhancing the customer experience through the development of a brand-new Weather App module. This module will deliver real-time, destination-specific weather … experimentation and validation of new product ideas through proof-of-concepts (POCs). ?? What will I be doing? As a Senior React Developer, you'll play a pivotal role in the end-to-end delivery of this greenfield app. You'll: Lead the … selection and implementation of a modern React-based technology stack. Familiar/experienced with Sitecore Headless/Edge/JSS Build the MVP of the Weather App from the ground up. Collaborate closely with engineering leads to shape architecture and best practices. Define and implement QA, automated testing, and More ❯

Senior React Native Developer Location: 2-3 days a week in London Join a leading FinTech organization with over 300,000 active users as a Senior React Native Developer, supporting Web, iOS, and Android applications. Be … those who enjoy working on greenfield products within a large engineering team (75+ members). Essential Skills: Experience with cross-platform mobile development using React Native. Proficiency with Github, Jira, and Confluence. Experience mentoring and supporting engineers. Experience scaling products from zero to hundreds of thousands of users is … a plus. If you're passionate about greenfield development, apply now. Additional Details: Seniority level: Mid-Senior level Employment type: Full-time Job function: Information Technology Industry: Software Development #J-18808-Ljbffr More ❯

Senior React Developer - Front Office, Real-Time Visualisation sought by leading investment bank based in Canary Wharf. **Inside IR35 - 3 days a week on site** We are seeking an experienced React Developer to join our front office development team. … real-time user interfaces with exceptional attention to detail and a focus on low-latency rendering. This role requires a deep understanding of modern React architecture, structured coding principles, and UI/UX best practices. Key Responsibilities Design and implement complex, real-time dashboards and interactive UIs for mission … experience with React.js and modern JavaScript (ES6+) Proven experience building low-latency, real-time user interfaces (trading platforms, analytics dashboards, etc.) Deep understanding of React performance optimization techniques (virtualization, memoization, code splitting) Experience with state management solutions (Redux, MobX, Recoil, or similar) Proficiency with WebSockets or other real-time More ❯

Senior Fullstack Developer (React, Node.js) Salary: £75,000 - £95,000 Location: Hybrid in London. Senior Fullstack Developer - would you like the opportunity to work for a market leading organisation, currently delivering to over 150 countries worldwide? You … a Senior Fullstack developer, you will be joining one of their Fullstack development teams working on Node.js and React, building out their suite of business applications and APIs. The company has grown significantly in the last few years and are looking for someone … their brand, with exciting projects due over the next year or so. You will have an in-depth understanding of JavaScript and Node.js/React and have some experience of coaching or mentoring teams in the past. Essential skills for a Senior Fullstack Engineer: Fullstack JavaScript More ❯

Senior Fullstack Developer (React, Node.js) Salary: £75,000 - £95,000 Location: Hybrid in London. Senior Fullstack Developer - would you like the opportunity to work for a market leading organisation, currently delivering to over 150 countries worldwide? You … a Senior Fullstack developer, you will be joining one of their Fullstack development teams working on Node.js and React, building out their suite of business applications and APIs. The company has grown significantly in the last few years and are looking for someone … their brand, with exciting projects due over the next year or so. You will have an in-depth understanding of JavaScript and Node.js/React and have some experience of coaching or mentoring teams in the past. Essential skills for a Senior Fullstack Engineer: Fullstack JavaScript More ❯

Social network you want to login/join with: Senior Frontend Developer - TypeScript, React, london col-narrow-left Client: Oliver Bernard Location: london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 1 Posted: 25.05.2025 Expiry Date … 09.07.2025 col-wide Job Description: Senior Frontend Developer – TypeScript, React 2-3 days p/week in London Up to £90k Would you like the opportunity to join an early-stage start-up who are looking to revolutionise the logistics space? They recently … closed a round of funding and are now seeking a Senior Frontend Developer, who’s confident working with React and TypeScript. As a Senior Frontend Developer, you will be responsible for taking their product to the next More ❯

Senior Full Stack Developer/Software Engineer (Java JavaScript React) London to £80k Well established trading brokerage is seeking a Senior Full Stack Developer as they expand into UK markets. As a Senior Full … developing high quality, scalable and secure trading applications, working across the full tech stack from Java on the backend through to JavaScript/TypeScript, React and React Native front end work. Location/WFH: You'll join a team of finance entrepreneurs and technologists in City based offices … knowledge of best practice and the full software development lifecycle You have full stack development experience including Java, JavaScript and/or TypeScript and React and/or React Native You also have experience with Spring Boot, SQL/NoSQL databases and REST APIs You are degree educated More ❯

Senior Frontend Developer – TypeScript, React 2-3 days p/week in London Up to £90k Would you like the opportunity to join an early-stage start-up who are looking to revolutionise the logistics space? They recently closed a round of funding … and are now seeking a Senior Frontend Developer, who’s confident working with React and TypeScript. As a Senior Frontend Developer, you will be responsible for taking their product to the next level. You will be directly … in a small team. Happy to consider any profile with 3+ years’ experience Degree background would be a bonus If you’re a Senior Frontend Developer looking to have an impact in an early-stage start-up, please apply. More ❯

Senior Frontend Developer – TypeScript, React 2-3 days p/week in London Up to £90k Would you like the opportunity to join an early-stage start-up who are looking to revolutionise the logistics space? They recently closed a round of funding … and are now seeking a Senior Frontend Developer, who’s confident working with React and TypeScript. As a Senior Frontend Developer, you will be responsible for taking their product to the next level. You will be directly … in a small team. Happy to consider any profile with 3+ years’ experience Degree background would be a bonus If you’re a Senior Frontend Developer looking to have an impact in an early-stage start-up, please apply. More ❯