26 to 50 of 75 Senior React Developer Jobs in London

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 … DevSecOps environment with strict CI/CD and compliance requirements Experience: Advanced React & TypeScript experience with strong programming fundamentals Skilled in managing complex state/data flows and performance tuning Experience with Node.js, Material UI, HTML/CSS, Docker, Azure Background in regulated sectors (energy, finance, utilities) Why Apply More ❯

Social network you want to login/join with: Senior Fullstack Developer (React/Node.js) - £95k, London (City of London) Client: Oliver Bernard Location: London (City of London), United Kingdom Job Category: Other EU work permit required: Yes Job Views: 5 Posted: 12.05.2025 … Expiry Date: 26.06.2025 Job Description: Location: Hybrid in London. Are you a Senior Fullstack Developer looking for an opportunity to work with a market-leading organization that delivers to over 150 countries worldwide? Join a technology team passionate about innovation, collaboration, and providing excellent … Automation. Experience working with GraphQL. If you're a Senior Fullstack Developer who enjoys working with Node.js and React and wants to join a market-leading organization, please apply. #J-18808-Ljbffr More ❯

Social network you want to login/join with: Senior Fullstack Developer (React, Node.js), south west london col-narrow-left Client: Oliver Bernard Location: south west london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views … Posted: 06.06.2025 Expiry Date: 21.07.2025 col-wide Job Description: 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 will be joining a technology team who have … a Senior Fullstack Developer, looking to work for a market leading organisation and enjoy working with Node.js/React, please apply. #J-18808-Ljbffr More ❯

Social network you want to login/join with: Senior Fullstack Developer (React/Node.js) - £95k, london (city of london) col-narrow-left Client: Oliver Bernard Location: london (city of london), United Kingdom Job Category: Other - EU work permit required: Yes col-narrow … right Job Views: 4 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job Description: 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 will be joining a … a Senior Fullstack Developer, looking to work for a market leading organisation and enjoy working with Node.js/React, please apply. #J-18808-Ljbffr More ❯

with: Wedo is partnering with a blockchain business building the next generation of digital asset protection. They're hiring a Senior React Contractor to lead the front-end build of their new B2B user portal a product that helps institutions manage wallet recovery, transaction protection, and … ve thrived in fast-moving, product-led environments, you’ll feel right at home. The Work Build and ship the new user portal using React and TypeScript Integrate front-end components with backend APIs Collaborate with product, engineering, and QA to deliver scalable code Define and influence front-end … architecture and technical standards React (modern): Hooks, composition patterns TypeScript: Strongly typed, scalable codebases Tailwind CSS: Utility-first styling framework shadcn/ui: Headless UI components State management: Zustand or Redux Toolkit Testing: Unit and integration best practices AWS Cognito (nice to have): Experience with authentication/identity systems More ❯

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 … 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 Full Stack Web Application Developer - React, Node, Next.js at Operati We are looking for a senior web developer with at least 10 years web development experience . Working closely with the CTO and founding team, you … abreast of developments in web applications and programming languages. Requirements Minimum 10 years experience in a developer role. Minimum 5 years React experience. Minimum 5 years Node.js experience. HTML/CSS Familiarity with database technology e.g. PostgreSQL/MySQL The ability to work to a specification More ❯

Derivatives business. This team is a key partner to the markets business and has been a major contributor to its success. As a senior developer you will work together with front office, operations, product development teams and members of the development team to provide … creative thinking and critical problem solving that are best in class, to serve our clients globally. Responsibilities: Design, develop and maintain web apps using React and TypeScript, ensuring high quality, clean and maintainable code. Manage application state using redux and middleware such as redux toolkit. Ensure high test coverage … experience. Work closely with teams to form good working culture and continuously adapt to different working environment. Requirements: Extensive experience in frontend development with React and TypeScript. In-depth knowledge of React, Redux, RTK, Cypress and Storybook. Extensive experience with Cypress and Vitest which focus on test driven More ❯

Senior Software Developer (PYTHON/AWS/REACT) - health tech - tech for good, make a positive impact on the world. Highly successful and fast growing organisation has an exciting opportunity for a Senior Software Developer (PYTHON/… AWS/REACT). They are looking for a talented individual who will design, implement, and maintain their publishing software, systems, and customer-facing digital products. Requirements Design and implement systems and software to meet requirements using appropriate tools and methods. Promote the creation of high-quality code by More ❯

retain the most talented people from a diverse candidate pool and we're hiring! We are looking for an experienced Senior React Native Developer to help build out a groundbreaking FinTech application from the ground up, which will become a critical piece of … For coordination purposes, it is preferred that you are located and working within the GMT-PST time zones. Responsibilities Develop and launch a new React Native application Collaborate with Product, Design, and Engineering to define, prioritize, and build FinTech/Web3 features Collaborate with backend and smart contract developers … with Design to implement a user friendly experience Requirements 3+ years of experience with mobile development in production environments 2+ years of experience with React Native development Strong expertise with iOS native development (using Swift/Objective-C and their development tools) and/or Android native development (using More ❯

Senior Full-Stack React Native Developer (Hybrid | London | 3 Days On-Site) – up to £125k I am looking for a Full-Stack React Native Developer with experience developing cross platform applications, as well as backend experience using Node and … GraphQL. This will be working in a small team, developing new features and scaling the application. Key Skills: React Native Expo Node GraphQL AWS If this role is of interest, please apply with an updated copy of your CV. Senior Full-Stack React Native Developer More ❯

Senior Full-Stack React Native Developer (Hybrid | London | 3 Days On-Site) – up to £125k I am looking for a Full-Stack React Native Developer with experience developing cross platform applications, as well as backend experience using Node and … GraphQL. This will be working in a small team, developing new features and scaling the application. Key Skills: React Native Expo Node GraphQL AWS If this role is of interest, please apply with an updated copy of your CV. Senior Full-Stack React Native Developer More ❯

Mid - Senior level Full Stack Ruby developer - React Location: Central London (2 times a month) Salary: £60-80k + Benefits About my client: a profitable SaaS business with a strong foundation and exciting growth prospects. As a long-term client of Opus … Level Full Stack Developer with 3-5 years of experience to join their team. You will be working with Ruby and React to develop and enhance our innovative products. Responsibilities: Develop and maintain web applications using Ruby and React. Collaborate with cross-functional teams to define More ❯

Mid - Senior level Full Stack Ruby developer - React Location: Central London (2 times a month) Salary: £60-80k + Benefits About my client: a profitable SaaS business with a strong foundation and exciting growth prospects. As a long-term client of Opus … Level Full Stack Developer with 3-5 years of experience to join their team. You will be working with Ruby and React to develop and enhance our innovative products. Responsibilities: Develop and maintain web applications using Ruby and React. Collaborate with cross-functional teams to define More ❯

permit required: Yes col-narrow-right Job Views: 1 Posted: 25.05.2025 Expiry Date: 09.07.2025 col-wide Job Description: Senior Full-Stack React Native Developer (Hybrid | London | 3 Days On-Site) – up to £125k I am looking for a Full-Stack React Native … as backend experience using Node and GraphQL. This will be working in a small team, developing new features and scaling the application. Key Skills: React Native Expo Node GraphQL AWS If this role is of interest, please apply with an updated copy of your CV. Senior Full-Stack React Native Developer (Hybrid | London | 3 Days On-Site) – up to £125k #J-18808-Ljbffr 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 … remote opportunities are available for UK-based candidates who can't commute in. View our careers page What you will do as a senior frontend developer As a senior frontend developer, you will help build new features and … 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 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 … remote opportunities are available for UK-based candidates who can't commute in. View our careers page What you will do as a senior frontend developer As a senior frontend developer, you will help build new features and … 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 More ❯

Senior Front End Lead Developer (React, TypeScript) FX Options Pricing – London (SVP) We are seeking a highly skilled and motivated front end application lead to play a key role on a greenfield multiyear transformation program aimed at modernising and scaling the electronic FX … services Collaborate with a global team of developers, quants and traders to translate business requirements into robust technical solutions Leverage your expertise in Typescript & React to build high-performance, scalable applications Create intuitive and responsive React web UIs that enhance user experience Contribute to the continuous improvement of … Experience in managing a team of front end engineers Experience in development of data models/schema for server side interaction Expert knowledge in React UI/UX development with TypeScript (Angular or Vue.js experience would also be considered) Solid understanding of inter-application communication using REST, WebSocket or More ❯

work permit required: Yes col-narrow-right Job Views: 4 Posted: 06.06.2025 Expiry Date: 21.07.2025 col-wide Job Description: 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 … innovation, collaboration, and providing the best service to their customers as well as embracing new ideas, technologies and approaches. Essential skills for a Senior Fullstack Engineer: Hands on experience of developing REST web services and API's. Knowledge and experience of deploying to cloud services, preferably AWS. … a Senior Fullstack Developer, looking to work for a market leading organisation and enjoy working with Node.js/React, please apply. #J-18808-Ljbffr More ❯

Social network you want to login/join with: Job Description We are currently looking for a Senior Frontend Developer (m/f/d) who is passionate about developing the best web applications. Amongst many exciting challenges, you will: Develop web applications for … Take full ownership of your projects Write unit tests and work on improvements of the current platforms - You must have extensive experience with using React and also have the capability to write unit tests (Jest, Enzyme, React-Testing Library). - Experience in implementation of responsive design based on More ❯

talk with your recruiter to learn more. Base pay range Direct message the job poster from Vallum Associates Senior React.js Developer - FinTech - Remote based Location: Fully remote based in the UK £70,000 - £80,000 base + package (stock options, flexi hours, electric vehicle … are working with a fast-growing B2B Fintech company building a cutting-edge data management platform for capital markets professionals. This is a senior role for a front-end engineer who can take ownership of projects from development through to production. Take your implementations from concept to … control, and CI/CD best practices. Curious about new ways of working and open to different approaches and ideas. Seniority level Mid-Senior level Employment type Full-time Job function Information Technology Industries Financial Services and Technology, Information and Media #J-18808-Ljbffr More ❯

education, facilities and property management, manufacturing, and both local and central government. Role Summary Our client is seeking a hands-on and experienced Senior Developer with approximately 7 years of commercial experience to help build a new product from the ground up. While a … Exposure to free-text data matching and complex data parsing. Familiarity with microservices architecture and serverless environments (e.g., Kubernetes). Seniority level Mid-Senior level Employment type Full-time Job function Engineering and Information Technology Industries IT Services and IT Consulting #J-18808-Ljbffr More ❯

Social network you want to login/join with: Senior Full Stack Developer (Django + React Native/Expo), london col-narrow-left Client: Bonsai Smart Wealth Location: london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job … Posted: 04.06.2025 Expiry Date: 19.07.2025 col-wide Job Description: Job Title: Senior Full Stack Developer (Django + React Native/Expo) Location : Remote (UK timezone 4 hours overlap required) 1) Describe a production system you’ve built using Django and React Native … Expo) 2) In Django, how have you handled long-running tasks or async workflows? 2) How do you approach state management in React Native when dealing with complex data interactions and API syncing? 3) What would your CI/CD pipeline look like for a full stack Django + More ❯

London, England, United Kingdom 12 hours ago Manchester, England, United Kingdom 1 week ago London, England, United Kingdom 6 months ago Frontend software engineer (React) - Europe Remote Birmingham, England, United Kingdom $35,000.00-$40,000.00 1 week ago Frontend software engineer (React) - Europe Remote Belfast, Northern Ireland, United … Kingdom $35,000.00-$40,000.00 1 week ago Frontend software engineer (React) - Europe Remote Liverpool, England, United Kingdom $35,000.00-$40,000.00 1 week ago Frontend software engineer (React) - Europe Remote Glasgow, Scotland, United Kingdom $35,000.00-$40,000.00 1 week ago London, England, United Kingdom 2 months … ago Frontend software engineer (React) - Europe Remote Manchester, England, United Kingdom $35,000.00-$40,000.00 1 week ago London, England, United Kingdom 1 week ago Frontend software engineer (React) - Europe Remote Leeds, England, United Kingdom $35,000.00-$40,000.00 1 week ago United Kingdom $75,000.00-$100,000.00 More ❯

web-based platform, developed in-house and used to manage business lending operations. The platform is built with .NET (C#) on the backend and React on the frontend, hosted in AWS and handling workflows that include external integrations, data pipelines, batch processing, and partner APIs. We're transitioning from … overhead — processes exist to support delivery, not get in the way. What You'll Be Doing Developing and maintaining responsive, intuitive user interfaces with React and Material UI Creating reusable components and implementing consistent design patterns Working with GraphQL APIs to efficiently fetch and manage data Ensuring accessibility compliance … communication is essential Supporting existing interfaces while implementing improvements — including legacy components Ensuring your work meets appropriate security, compliance, and documentation standards Our Stack React with TypeScript Material UI component library GraphQL GitLab CI/CD, Jira, Confluence DataDog for monitoring and alerting .NET backend (maintained by separate team More ❯