13 of 13 Permanent Senior React Developer Jobs in London

Our client, a fast-growing FinTech organisation delivering innovative digital financial solutions, is seeking a highly skilled Senior React Native Developer to join their dynamic technology team. This is a key opportunity to play a leading role in the development and launch of a major new mobile app scheduled for release in September … 2025. The successful candidate will have extensive experience in React Native development, combined with a passion for delivering seamless mobile experiences across iOS and Android platforms. Main Purpose of the Role: * Take ownership of mobile app design, development, and optimisation using React Native. * Drive the delivery of a high-performance, scalable mobile app with outstanding user experience. * Collaborate … closely with Product Managers, Designers, Developers, and key stakeholders to deliver business-critical solutions. Key Responsibilities: * Translate UI/UX designs and wireframes into high-quality, reusable React Native code. * Optimise app components for performance, responsiveness, and smooth user experience across iOS and Android devices. * Develop scalable, maintainable front-end architecture with reusable components and libraries. * Integrate native modules More ❯

Role: Senior React Native Developer Location: 1-2 days a week in London Salary: £60,000 - £70,000 We are seeking a Senior React Native Developer to join our team and lead the development of high-quality mobile applications. You will work closely with the team … requirements analysis capture and validation against and with business and platform requirements. Must Have: 5+ years of professional experience in mobile development. 3+ years of experience building apps with React Native. Strong proficiency in JavaScript and TypeScript. Solid understanding of mobile design principles and interface guidelines. Experience with Expo, Redux, React Navigation, or Reanimated. Experience integrating with RESTful … record of delivering high-quality apps in production. Additionally, you'll demonstrate experience of: 5+ years of professional experience in mobile development. 3+ years of experience building apps with React Native. Strong proficiency in JavaScript and TypeScript. Solid understanding of mobile design principles and interface guidelines. Experience with Expo, Redux, React Navigation, or Reanimated. Experience integrating with RESTful More ❯

Senior Front End Developer/Engineer (React TypeScript Data Visualisation) London to £80k Are you a skilled Software Developer with strong React and Data Visualisation skills combined with a good appreciation of financial markets and technology? You could be joining a growing, global, Fintech services company that has seen … ll design and develop new features and enhancements to the front end of the platform with a focus on real-time data visualisation on client dashboards and portals using React, there's approximately 70-80% Greenfield development. You'll collaborate with backend engineers to build complex financial products in a technology driven environment with lots of learning and self … two days. About you: You 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, ideally with experience in a More ❯

Senior Front End Developer/Engineer (React TypeScript Data Visualisation) London to £80k Are you a skilled Software Developer with strong React and Data Visualisation skills combined with a good appreciation of financial markets and technology? You could be joining a growing, global, Fintech services company that has seen … two days. About you: You 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, ideally with experience in a … Wellness Programme Summer time hours £2k personalised training budget Apply now to find out more about this Senior Front End Developer/Engineer (React TypeScript Data Visualisation) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities More ❯

Senior Full Stack Developer (Node/React) Senior Full Stack Developer (Node/React) required to join a successful open-source Software House who work with the Healthcare industry. Working closely with other members of your Team, including other Developers, QA, Product Owner you will be … to four months.Ideally we are keen to find candidates who have at least 6 years’ experience and who have worked in a full stack capacity, ideally with experience in React and Typescript. Our client have recently moved to Azure so are keen to utilise Azure’s cloud functionality including serverless functions/service bus so any experience within this … be great. Any experience with leading projects and mentoring more junior developers would be great!Ideal candidates will have at least 6 years full stack development experience with : JavaScript React or Angular Node.js HTML CSS Agile And nice to have : MongoDB GraphQL REST API’s JSON Redis SQL Databases Typescript This is a great opportunity to join an established More ❯

your skills and experience talk with your recruiter to learn more. Base pay range 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 … the impact of your work, 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 with smart dress code on … with a strong 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 in Computer Science or similar More ❯

Senior Software Engineer - Drive Digital Transformation with React Native & AWS in London! 12 month FTC to Permanent £70,000 - £80,000 Tech Stack - React Native, React, Typescript, Node, Expo, AWS (ECS, DynamoDB, ALB, CloudFront, CloudWatch, Lambda) Our client is seeking a talented React Native Engineer with a passion for building scalable, cloud-native … mobile product strategy fully in-house. Quick Overview: Location: London (Hybrid, 1-2 days in office) Projects: Exciting greenfield app development and product migrations, with a strong focus on React Native with Expo for mobile and scalable AWS solutions for the backend. Team: Be part of a growing internal product & engineering team. Why Now? Backed by significant investment and … strong executive focus, this marks the beginning of a major mobile-led transformation for our client. What Our Client Needs From You: Deep expertise in React Native development, specifically with extensive Expo experience, is crucial for building their next-generation mobile applications. Proven experience in designing and implementing new scalable technology within AWS, particularly leveraging services such as ECS More ❯

Senior Software Engineer - Drive Digital Transformation with React Native & AWS in London! 12 month FTC to Permanent £70,000 - £80,000 Tech Stack - React Native, React, Typescript, Node, Expo, AWS (ECS, DynamoDB, ALB, CloudFront, CloudWatch, Lambda) Our client is seeking a talented React Native Engineer with a passion for building scalable, cloud-native … mobile product strategy fully in-house. Quick Overview: Location: London (Hybrid, 1-2 days in office) Projects: Exciting greenfield app development and product migrations, with a strong focus on React Native with Expo for mobile and scalable AWS solutions for the backend. Team: Be part of a growing internal product & engineering team. Why Now? Backed by significant investment and … strong executive focus, this marks the beginning of a major mobile-led transformation for our client. What Our Client Needs From You: Deep expertise in React Native development, specifically with extensive Expo experience, is crucial for building their next-generation mobile applications. Proven experience in designing and implementing new scalable technology within AWS, particularly leveraging services such as ECS More ❯

Senior Software Engineer - Drive Digital Transformation with React Native & AWS in London! 12 month FTC to Permanent £70,000 - £80,000 Tech Stack - React Native, React, Typescript, Node, Expo, AWS (ECS, DynamoDB, ALB, CloudFront, CloudWatch, Lambda) Our client is seeking a talented React Native Engineer with a passion for building scalable, cloud-native … mobile product strategy fully in-house. Quick Overview: Location: London (Hybrid, 1-2 days in office) Projects: Exciting greenfield app development and product migrations, with a strong focus on React Native with Expo for mobile and scalable AWS solutions for the backend. Team: Be part of a growing internal product & engineering team. Why Now? Backed by significant investment and … strong executive focus, this marks the beginning of a major mobile-led transformation for our client. What Our Client Needs From You: Deep expertise in React Native development, specifically with extensive Expo experience, is crucial for building their next-generation mobile applications. Proven experience in designing and implementing new scalable technology within AWS, particularly leveraging services such as ECS More ❯

We're looking for a senior frontend engineer to help us build our SaaS and on-premise helpdesk product. If you love working on products used by thousands of people and want to work in a small but quickly growing company, then read on! At Deskpro, we make helpdesk software and we have customers of all shapes … the varied work, and you will get satisfaction in shipping software that gets used by thousands. Technology we use and where we're going Our frontend is built with React and Typescript. Our product has a GraphQL backend and we use codegen to generate fully typed Typescript interfaces for the Apollo Client. We love our types! We also use … any kind of communication. And we have a lot more projects coming up including asset tracking, enhanced reporting tools, approvals, and so much more. Experience building web apps with React and Typescript A solid understanding of GraphQL. Prior experience with React Apollo GraphQL and codegen are a bonus. Experience with Javascript and the Javascript ecosystem. For example, you More ❯

different This is a great opportunity for individuals passionate about building elegant, scalable, and performant back-end systems, with a track record of delivering robust APIs that enable dynamic React front ends and unlock the full value of data and AI-driven insights. Behind every insight we deliver is a fast, reliable, and intelligent API infrastructure-designed to serve … front end teams and product stakeholders to ship well-integrated features. Comfortable in fast-paced, high-autonomy environments with a strong culture of accountability. Nice to Have: Familiarity with React and how front end teams consume and interact with back end services. Experience with the Databricks platform and ecosystem. Prior experience in a market intelligence, financial data, or analytics … SaaS business. Working knowledge of SQL/NoSQL databases and data modelling in analytics contexts. Comfortable working with AI developer assistants (e.g. GitLab Copilot). How we support our colleagues In addition to our comprehensive benefits package, we encourage an inclusive workforce. Plus, our agile environment allows you to manage your wellbeing and work/life balance More ❯

light client, or a crypto wallet on a mobile, this is about an entire blockchain running in full on mobile They are currently looking for experienced Middle and Senior Frontend Developers to join the international, cutting edge and innovative team based in London with flexibility to work remotely. Renown for flat hierarchies and short decision-making processes. … tech stack and processes. Support and mentor more junior developers. Identify and fix any performance issues. YOUR BACKGROUND: Mid level: Minimum of 2-5 years in Frontend Development. Senior level: Minimum of 5+ years in Frontend Development. Experience with React. Nice to have: NodeJS, Webpack, Redux, Docker, TypeScript, Angular. Agile Mindset. Experience with Automation. Proactive and positive More ❯

between. There's always something new to build. We have a Wimbledon office but remote opportunities are available for UK-based candidates. What you will do as a senior full-stack engineer As a senior full-stack engineer, you will help build new features and modules, you'll be involved in shaping our underlying … Elastic, Redis, and services offered by AWS like DynamoDB. We're big fans of using the right tool for the job. The main product frontend is all Typescript/React that talks to GraphQL backends. Other parts of the business use React/NextJS or even Svelte. We've spent time looking at maturing technologies like Web Components … be able to process any kind of communication. New GraphQL API backends. Strong experience with PHP Strong experience with RDMS (we use MySQL). Experience building SPA's with React and Typescript. Experience with AWS is a bonus. You should be a fast learner. We often venture into unknown territory so you should be a Google-fu master and More ❯