1 to 25 of 52 Permanent React Developer Jobs in London

React Developer/Front End Engineer (React v19 TypeScript) London/WFH to £95k Do you have expertise with React? You could be progressing your career at a Hedge Fund with complex work and substantial bonus earning potential. As a React Developer you'll join a globally distributed team to … You'll join colleagues in the impressive Central London office with flexibility to work from home twice a week. About you: You have strong Front End development skills with React (they're using v19) and TypeScript You are experienced with other web technologies such as HTML, CSS, Web APIs You have a strong knowledge of Computer Science fundamentals including … with great communication skills You are degree educated, having achieved a 2.1 or above in Computer Science or similar technical discipline What's in it for you: As a React Developer/Front End Engineer you will receive a competitive package: Salary to £95k Bonus Pension Self development and career progression opportunities Apply now to find More ❯

Job Title: Full-Stack Node.js/React Developer Location: Hybrid in London (2-3 days) Employment Type: Permanent Salary: Up to £80,000 + package Start Date: Immediate Industry: Payments A regulated FinTech (UK & EU EMI-licenced) backed by Banking Circle’s payment rails are looking for a seasoned Node.js/React Developer … across the UK, EU, and US, serving both direct customers and strategic partners. You’ll be one of the founding members driving their migration to a modern Node.js/React/API-first stack, rebuilding client-facing applications from the ground up and shaping the future of financial product delivery. Full-Stack Node.js/React Developer – Key Responsibilities Build the new Node.js/React client stack (Next.js experience a plus) Integrate with existing Ruby services, adding APIs or middleware as needed Drive secure, multi-tenant authorization/authentication (OIDC/OAuth) Contribute to frontend design and user experience, especially in financial UI Full-Stack Node.js/React Developer More ❯

Job Title: Full-Stack Node.js/React Developer Location: Hybrid in London (2-3 days) Employment Type: Permanent Salary: Up to £80,000 + package Start Date: Immediate Industry: Payments A regulated FinTech (UK & EU EMI-licenced) backed by Banking Circle’s payment rails are looking for a seasoned Node.js/React Developer … across the UK, EU, and US, serving both direct customers and strategic partners. You’ll be one of the founding members driving their migration to a modern Node.js/React/API-first stack, rebuilding client-facing applications from the ground up and shaping the future of financial product delivery. Full-Stack Node.js/React Developer – Key Responsibilities Build the new Node.js/React client stack (Next.js experience a plus) Integrate with existing Ruby services, adding APIs or middleware as needed Drive secure, multi-tenant authorization/authentication (OIDC/OAuth) Contribute to frontend design and user experience, especially in financial UI Full-Stack Node.js/React Developer More ❯

Role: Quantitative Developer – React/C# Location: London Industry: Hedge Funds Travel: Hybrid Overview: A leading global quantitative investment manager is seeking a skilled Quantitative Developer (React/C#/Python) to join their London-based team. You will work as a desk-facing developer alongside global cross-asset … project delivery. Responsibilities: Provide daily technical support and trading insights to multiple activities and asset classes. Build, optimize, and maintain reporting and analytical tools for research and trading, leveraging React, C#, and Python frameworks. Take ownership of production processes to align with dynamic business objectives. Collaborate closely with analysts, quants, and developers, offering constant feedback on investment strategy performance. … to problem-solving, enabling scalable solutions. Multitask effectively while working in a team-oriented, collaborative environment. Experience: Minimum 3 years experience as a software engineer. Front-end experience with React, MUI, AG-Grid, and ECharts. Advanced proficiency in C and Python (required). SQL expertise preferred. Strong communication, organizational skills, and ability to multitask. Ability to work independently and More ❯

React Developer – Elite Trading Firm 📍 Location: London (Hybrid) 💸 Compensation: Up to £180,000 + Bonus + Comprehensive Benefits 🚀 The Opportunity Join a world-class buy-side firm as a React Developer , helping to design and build scalable, low-latency front-end systems that power sophisticated trading and pricing workflows. This is a … benefits in a merit-driven culture ✅ What We’re Looking For 🎓 Degree in Computer Science, Engineering , or a related STEM field 💻 1+ years of professional software development experience ⚛️ Strong React expertise (knowledge of Python or backend integration is a plus) 🔄 Familiarity with Agile workflows, Git , and CI/CD pipelines This isn’t just another front-end role — it More ❯

Job Title : Senior React Developer Client : Elite FinTech Firm Salary : Up to 180k Base + Exceptional Bonus Location : London (Hybrid Working) Sells : Cutting-edge tech, a collaborative and flat-structured environment, beautiful office spaces My client is looking for talented React Developers to join their high-performance team! You will be pivotal in building slick … clean, efficient, and reusable code that is scalable, robust and maintainable. Successful Candidates: Bachelor's or Master's Degree in Computer Science or related field Strong experience as a React Developer Experience in commodities trading is a bonus Strong written and verbal communication skills, enabling effective collaboration and information sharing in a fast-paced environment. Demonstrated More ❯

Job Title : Senior React Developer Client : Elite FinTech Firm Salary : Up to 180k Base + Exceptional Bonus Location : London (Hybrid Working) Sells : Cutting-edge tech, a collaborative and flat-structured environment, beautiful office spaces My client is looking for talented React Developers to join their high-performance team! You will be pivotal in building slick … clean, efficient, and reusable code that is scalable, robust and maintainable. Successful Candidates: Bachelor's or Master's Degree in Computer Science or related field Strong experience as a React Developer Experience in commodities trading is a bonus Strong written and verbal communication skills, enabling effective collaboration and information sharing in a fast-paced environment. Demonstrated More ❯

React Native Developer – Secure Tech: Details: Type: Permanent. Hybrid: London. Salary: Highly competitive (depending on skills & exp). Start date: ASAP Company and role: Our client is seeking a React Native Developer to help shape the future of secure communication. You’ll be joining a lean, highly technical team focused on building … the next-gen in the "Secure Tech" focused industry — with real impact and purpose. Key responsibilities: React Native Developer – Secure Tech Build performant, secure mobile applications using React Native (Expo), Kotlin, and Swift. Integrate with Gmail APIs, manage OAuth2 flows, and handle MIME payloads. Implement responsive UIs from Figma designs. Contribute to architecture, automated testing … and CI/CD pipelines. What we're looking for: React Native Developer (Expo) – Secure Tech Ideally 4+ years’ experience with React Native (Expo SDK nice to have). Any experience of native module development in Kotlin/Swift would be great. Exposure to cryptographic principles or an interest in Encryption desirable. MIME standards, and More ❯

React Native Developer – Secure Tech: Details: Type: Permanent. Hybrid: London. Salary: Highly competitive (depending on skills & exp). Start date: ASAP Company and role: Our client is seeking a React Native Developer to help shape the future of secure communication. You’ll be joining a lean, highly technical team focused on building … the next-gen in the "Secure Tech" focused industry — with real impact and purpose. Key responsibilities: React Native Developer – Secure Tech Build performant, secure mobile applications using React Native (Expo), Kotlin, and Swift. Integrate with Gmail APIs, manage OAuth2 flows, and handle MIME payloads. Implement responsive UIs from Figma designs. Contribute to architecture, automated testing … and CI/CD pipelines. What we're looking for: React Native Developer (Expo) – Secure Tech Ideally 4+ years’ experience with React Native (Expo SDK nice to have). Any experience of native module development in Kotlin/Swift would be great. Exposure to cryptographic principles or an interest in Encryption desirable. MIME standards, and More ❯

React Native Developer Are you passionate about building sleek, high-performing mobile applications that make a real impact? We’re looking for a React Native Developer to join a fast-growing AI startup. The Role As a key member of the engineering team, you’ll design, build, and scale mobile applications that … retail and public spaces. You’ll collaborate with AI, product, and infrastructure teams to deliver features that are fast, reliable, and intuitive. You will: Build and maintain high-quality React Native applications for iOS and Android. Collaborate closely with product, design, and backend teams to deliver seamless, visually polished experiences. Integrate and extend React Native functionality with native … who thrives in fast-moving environments and loves shipping polished, production-ready apps. You’ll be a great fit if you have: Proven experience building and launching React Native applications. Strong expertise in either iOS or Android development (ideally iOS). Solid understanding of native development concepts and experience bridging with Swift or Kotlin. Experience managing production More ❯

React Native Developer Are you passionate about building sleek, high-performing mobile applications that make a real impact? We’re looking for a React Native Developer to join a fast-growing AI startup. The Role As a key member of the engineering team, you’ll design, build, and scale mobile applications that … retail and public spaces. You’ll collaborate with AI, product, and infrastructure teams to deliver features that are fast, reliable, and intuitive. You will: Build and maintain high-quality React Native applications for iOS and Android. Collaborate closely with product, design, and backend teams to deliver seamless, visually polished experiences. Integrate and extend React Native functionality with native … who thrives in fast-moving environments and loves shipping polished, production-ready apps. You’ll be a great fit if you have: Proven experience building and launching React Native applications. Strong expertise in either iOS or Android development (ideally iOS). Solid understanding of native development concepts and experience bridging with Swift or Kotlin. Experience managing production More ❯

Full Stack Developer (React/Next.js/AWS) Location: Remote (UK-based preferred) Salary: £45,000 – £50,000 per annum (DOE) Contract: Full-time, Permanent About the Company We’re working with a fast-growing sports technology company that’s transforming the way professional teams and broadcasters use live performance data. Their advanced analytics platform blends … to deliver high-quality, scalable products used by leading sports organisations. The Role We’re looking for a proactive Full Stack Developer with strong skills in React, Next.js, and AWS to maintain and enhance a suite of live sports data and analytics applications. This is a hands-on position offering end-to-end ownership of features … pipelines. You’ll work with real-time APIs, WebSocket feeds, and cloud infrastructure to deliver high-performance applications used by major sports clients. Key Responsibilities Develop and extend multiple React/Next.js web applications Implement new UI components with Tailwind CSS and modern JavaScript Integrate REST APIs and real-time data feeds Debug, refactor, and optimise across frontend and More ❯

Job Title: React Developer (VP & AVP) Location: London (Hybrid – 2 days in-office) Salary: AVP < £120k | VP £120k+ Team: Brand new FX Data & Analytics team About the Role: Join a newly formed team building business-critical dashboards for trading and sales desks. You’ll work closely with the business, delivering interactive analytics tools that provide real … time insights into day-to-day operations, P&L, and more. The tech stack is React-based UI, with Java/Python on the backend and a data layer. The environment is greenfield, with significant ownership and the chance to shape frameworks from the ground up. Key Responsibilities: Develop and enhance interactive dashboards for trading and analytics Collaborate directly … with trading desks and stakeholders Build and maintain React-based UIs, leveraging WebSockets for real-time data Contribute to framework design and implementation (VP) Provide technical leadership and deeper FX/e-trading expertise Must-Have Skills: Strong React development experience (WebSockets a plus) (VP) E-Trading and FX experience required; (AVP) FX knowledge beneficial but not essential More ❯

Job Title: React Developer (VP & AVP) Location: London (Hybrid – 2 days in-office) Salary: AVP < £120k | VP £120k+ Team: Brand new FX Data & Analytics team About the Role: Join a newly formed team building business-critical dashboards for trading and sales desks. You’ll work closely with the business, delivering interactive analytics tools that provide real … time insights into day-to-day operations, P&L, and more. The tech stack is React-based UI, with Java/Python on the backend and a data layer. The environment is greenfield, with significant ownership and the chance to shape frameworks from the ground up. Key Responsibilities: Develop and enhance interactive dashboards for trading and analytics Collaborate directly … with trading desks and stakeholders Build and maintain React-based UIs, leveraging WebSockets for real-time data Contribute to framework design and implementation (VP) Provide technical leadership and deeper FX/e-trading expertise Must-Have Skills: Strong React development experience (WebSockets a plus) (VP) E-Trading and FX experience required; (AVP) FX knowledge beneficial but not essential More ❯

Senior/Lead Hands on Full Stack Developer - React/Python London | Hybrid (3days in the office and 2 days from home) £110,000+ Equity | Full-Time | Start-up We're a high-growth start-up building a leading healthcare! Looking for a Full Stack developer who loves working across the stack - React on the front end, Python on the back end. You'll: Build responsive UIs in React Develop APIs & services in Python (either Django/Flask/FastAPI) Own features end-to-end Help shape our tech stack You have: Strong React & Python skills API & database experience A proactive, problem-solving mindset Ideally start-up or scale-up More ❯

React Developer – Fixed Income eTrading We are seeking experienced React Developers to join the Fixed Income eTrading technology team at a global investment bank. This position is part of a high-profile, multi-year transformation initiative aimed at modernising and scaling a next-generation electronic trading platform. The role is to help build cutting edge More ❯

React Developer – Fixed Income eTrading We are seeking experienced React Developers to join the Fixed Income eTrading technology team at a global investment bank. This position is part of a high-profile, multi-year transformation initiative aimed at modernising and scaling a next-generation electronic trading platform. The role is to help build cutting edge More ❯

Full Stack Node.js/React Developer - FinTech Innovation Team 📍 London (Victoria) - Hybrid | UK Remote considered 🏦 Join a regulated FinTech transforming global payments 🚀 Shape the Future of Financial Services Join our new strategic team at a cutting-edge FinTech backed by Banking Circle's international payment rails. We're transforming how businesses access account-to-account payments … card issuing, and financial services across UK, EU, and US markets. You'll rebuild critical client-facing applications from the ground up, pioneering our move to Node.js/React and API-first architecture. 🏦 About Us Regulated EMI in UK & EU, with US sponsor bank partnerships Visa & Mastercard member - card issuer Global reach with homogeneous services across three major markets … robust middleware solutions connecting frontend experiences to financial services Implement secure OIDC/OAuth flows for multi-tenant financial applications Strategic Impact Lead migration from legacy technologies to modern React/Node.js ecosystem Establish development patterns for our expanding Node.js capabilities Showcase innovations to stakeholders in bi-monthly London sessions 🧠 The Developer We're Seeking Financial More ❯

Senior/Lead Hands on Full Stack Developer - React/Python London Hybrid (3days in the office and 2 days from home) £110,000+ Equity Full-Time Start-up We're a high-growth start-up building a leading healthcare! Looking for a Full Stack developer who loves working across the stack - React More ❯

and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title And Summary Lead React Developer Overview Mastercard Developers ) is the single platform for Mastercard partners to access a diverse range of payment, data, loyalty, and security APIs. The team is … quickly find the right API, assess its technical capabilities and integrate it into new and innovative solutions. Mastercard Developers is looking for a versatile and customer-obsessed Software Developer to join our team. You will play a key role in designing and developing next-generation products and services in Mastercard for a global audience. Would you enjoy … Act as subject matter expert for API Platform and services to support customer integrations on occasion All About You 8+ years professional, hands-on, frontend application development experience. Expert React ES6 Javascript and Typescript skills including areas of functional and asynchronous programming. Expert CSS development knowledge and experience with both native and using frameworks e.g. bootstrap, tailwind, mui, etc. More ❯

Job Description: Extensive experience in JavaScript & Typescript development, with a strong focus on React JS and Node JS (Mainly Typescript with React JS and Node JS) Good to have experience working with the Cancara Design System and the InterStellar Web SDK Deploy build and manage apps on Azure cloud Integrate with Azure functions and API Experience on Google … Cloud Proficiency in front-end technologies such as HTML, CSS, JavaScript, and Typescript frameworks (e.g. React, React Context, Redux etc..) Familiarity with version control systems (e.g., Git) and agile development methodologies Strong knowledge on unit testing library's like React Testing Library and Jest frameworks Strong problem-solving and analytical skills Excellent communication and collaboration abilities More ❯

Job Description: Extensive experience in JavaScript & Typescript development, with a strong focus on React JS and Node JS (Mainly Typescript with React JS and Node JS) Good to have experience working with the Cancara Design System and the InterStellar Web SDK Deploy build and manage apps on Azure cloud Integrate with Azure functions and API Experience on Google … Cloud Proficiency in front-end technologies such as HTML, CSS, JavaScript, and Typescript frameworks (e.g. React, React Context, Redux etc..) Familiarity with version control systems (e.g., Git) and agile development methodologies Strong knowledge on unit testing library's like React Testing Library and Jest frameworks Strong problem-solving and analytical skills Excellent communication and collaboration abilities More ❯

Mid Level React Native Developer Central London – Hybrid (3 days in office) £65,000 – £70,000 Im looking for a React Native Developer who is passionate about taking ownership and running with projects in a nimble, collaborative team. In this role, you’ll have the opportunity to explore creative ideas and contribute … latest technology trends and implement improvements to enhance product performance and user experience. Qualifications : 🎓Computer science degree or a similar degree. 🎓Strong command of JavaScript with proven experience in React Native. 🎓Ability to code components, manage state, and confidently handle the fundamentals without reliance on tools like Copilot. 🎓Familiarity with Git, HTML/CSS, and an understanding of cross More ❯

Mid Level React Native Developer Central London – Hybrid (3 days in office) £65,000 – £70,000 Im looking for a React Native Developer who is passionate about taking ownership and running with projects in a nimble, collaborative team. In this role, you’ll have the opportunity to explore creative ideas and contribute … latest technology trends and implement improvements to enhance product performance and user experience. Qualifications : 🎓Computer science degree or a similar degree. 🎓Strong command of JavaScript with proven experience in React Native. 🎓Ability to code components, manage state, and confidently handle the fundamentals without reliance on tools like Copilot. 🎓Familiarity with Git, HTML/CSS, and an understanding of cross More ❯

Job Title: Frontend Engineer – React/TypeScript/Next.js Location: London (Hybrid – 2‐3 days in office) Salary: £70,000 – £75,000 + Equity About the Company You’ll join a fast‐scaling SaaS business that’s redefining how enterprise sales teams operate. Their platform uses advanced AI and deal‐intelligence to unlock hidden insights, streamline workflows and elevate … real‐world impact, yet technically deep and product‐led. About the Role You will help shape the front end of a high‐impact product used by enterprise customers, using React , TypeScript , and Next.js . You’ll work across the full front‐end life cycle — from architecture and design collaboration, through to deployment and optimisation — delivering robust, performant, and accessible … join a highly collaborative team where your voice will matter, and your work will be visible at scale. What You’ll Do Build and maintain modern web applications using React , TypeScript , and Next.js . Translate UI/UX designs into responsive, accessible and high‐performance user interfaces. Collaborate strategically with backend engineers, product owners and designers to deliver end More ❯