151 to 175 of 374 React Jobs in the City of London

Senior Software Engineer (React, Node.js, AWS) Salary: £90,000 - £110,000. Location: Hybrid in London. Senior Software Engineer (React, Node.js, AWS) - would you like the opportunity to work for a market leading organisation, currently looking to revolutionise the data space? You will be joining a technology team who have a passion for innovation, collaboration as well as embracing new ideas More ❯

a engineering background using: Java OR Kotlin (on the backend) - MUST HAVE + Spring Boot + Microservices TDD - MUST HAVE (THIS IS VERY IMPORTANT) TypeScript - MUST HAVE Vue OR React on the Frontend AWS OR GCP All hires are FULL-STACK meaning if you are frontend leaning, you MUST have some backend knowledge and the same for Vue/React More ❯

including building custom themes/plugins Headless CMS Web markup, including HTML5, CSS, and JavaScript/TypeScript Knowledge and experience of Git Sass, Webpack, and CSS frameworks like Tailwind React/NextJS and GraphQL Working with Restful APIs HTML emails DNS records Linux command line Experience with Vercel SEO principles Experience in an agency environment Experience Requirements: Agency: 2 years … required) WordPress: 2 years (required) React/Next.js: 2 years (required) Benefits include: Perkbox Rockstar Awards for excellence (with the opportunity to earn an extra day of holiday each month) Company events & social hours Profit share scheme 23 days of holiday Boutique agency environment with a small team working alongside senior management Hybrid working opportunities (work from home or the … years of working with an agency or start-up. If this sounds like it its of interest, apply now! Keywords: Senior Web Developer, Senior Developer, WordPress, Headless CMS, React, Next.js, GraphQL, Full Stack Developer. More ❯

React Developer – Digital Health Tech – London (Hybrid) – £55k–£75k + Benefits Location: London, Hybrid (2–3 days in office) Salary: £55,000 – £75,000 (depending on experience) Job Type: Full-time, Permanent We’re a healthtech company on a mission to improve healthcare access, outcomes, and experiences through cutting-edge digital solutions. Based in central London, our platform is used … NHS providers, private clinics, and patients across the UK to deliver safer, faster, and more personalised care. As we scale up, we're looking for a skilled and passionate React Developer to help us build user-facing applications that make a real difference in people’s lives.What You’ll Be Doing: Building and maintaining modern, responsive front-end applications with … React.js Working closely with clinical and product teams to design intuitive interfaces for healthcare professionals and patients Ensuring accessibility, performance, and reliability across devices and browsers Integrating with secure APIs and contributing to a component-based design system Writing clean, testable, well-documented code in a highly regulated environment Collaborating in an agile, cross-functional team to deliver impactful health More ❯

Principal Engineer | Hybrid | React | Node | AWS | TypeScript | £120k La Fosse has partnered with a global leader in customer loyalty and travel services. We're looking for Principal Engineers with a strong background in full-stack JavaScript development to join their growing team. As a Principal Engineer, you'll be leading the technical direction of a greenfield project, building and designing … A track record of success in mentoring, technical leadership, and stakeholder engagement Experience leading the design, development, and operation of innovative software solutions Strong skills in modern web development (React.js, Node.js, AWS, TypeScript) and a solid understanding of web architecture Proficiency in building and managing APIs (GraphQL & RESTful) and strong database fundamentals (MongoDB) In-depth knowledge of AWS services (e.g. … Process: Streamlined two-stage virtual interview If this sounds like the next step in your engineering journey, we'd love to hear from you. Apply now! Principal Engineer | Hybrid | React | Node | AWS | TypeScript | £120k More ❯

Front End Software Engineer/React UI JavaScript, React, typescript, Redux, NodeJS, GraphQL, ApolloQL, Webpack, Cypress, HTML, CSS, REST, Data Visualisation, API - Perm Role – London – Hybrid £80'000- £100'000 plus bonus Harrington Starr has partnered up with a Global Exchange company that are looking to hire a UI Developer with expert Software Engineering skills using JavaScript, React/Redux … specing out, designing and developing of UI screens for the users. This will require you to have client facing experience as well as low levy programming with JavaScript and React Development experience. Their systems cover all asset classes from FX, Fixed Income, Interest Rates and Commodities including derivative products although this knowledge is not essential but would be advantageous. Key … Tech Stack: Extensive React/Redux on the Front End Solid JavaScript programming Strong experience with Systems design and development. Experience with Typescript Experience with Data Visualisation development. HTML and C55 Experience with Webpack Experience with GraphQL RESTful API development. BSc with Computer Science, Engineering or Mathematics. More ❯

Role: Senior Full Stack Engineer (Node/React) 🌍 Location: London (Hybrid - 3 days per week) 💰 Salary: £70,000 - £80,000 per annum, plus benefits 🛠 Key Skills: TypeScript, JavaScript, React, Node, SQL/NoSQL 🎵 Industry: Music-tech 🎧 Unique Opportunity: Senior Full Stack Engineer – Where Music Meets Cutting-Edge Tech We’re partnering with an industry-leading music-tech company on the … products that empower people to play and create music in ways never done before. As the Senior Full Stack Engineer, you'll be working across a modern stack – TypeScript, React, Node.js, NoSQL – helping build and scale high-performance platforms that sit at the heart of their e-commerce and digital music tools. 🌟 Why this role stands out for a Senior … the intersection of music, design, and tech Help shape technical direction, architecture, and product experience Work in a culture that values collaboration, creativity, and innovation 🧠 Tech Stack Includes : TypeScript, React/SolidJS, Node.js, REST APIs, Cypress, Vercel/AWS 🎯 Bonus Points : Astro, Tailwind, GraphQL, Shopify, Figma, accessibility If you’re a Senior Full Stack Engineer skilled in Node/React More ❯

Trading Systems UI Developer Salary: Up to £120,000 plus Bonus and Benefits NodeJS, JavaScript, TypeScript, React Framework, Trading Systems UI, Data Structures, High Frequency Trading, Tailwind, CSS, React Query, API, High performance UI Harrington Starr has partnered with an innovative Digital Currency Investment Platform Company that specialise in developing unique software systems for clients for invest into Digital Markets … JavaScript, TypeScript and NodeJS and including cloud technologies. You will have a degree in computer science from a reputable University and have a good understanding of JavaScript TypeScript and React Framework. Key requirements within this opportunity are as follows: Experience with NodeJS Solid experience with JavaScript and TypeScript Experience with React and React Query Experience with Tailwind and CSS. Experience More ❯

Stack Developer with strong Python & JavaScript to join them working across a range of new initiatives Core skills across Python and JavaScript with experience in Django and/or React are an absolute must for this position Duties: - Work within a small team of developers, contributing to daily code reviews and merge requests. - Develop across the entire product stack - Take … to deployment - Mentor junior developers to support their technical growth. Skills & Experience: - Minimum of 3 years of experience as a full-stack developer across: Backend: Python, Django Frontend: JavaScript, React, Next.js Version Control: Git Beneficial Knowledge: - Azure - AI Full Stack Python/JavaScript Developer - London - £60k Very flexible hybrid More ❯

Senior Product Engineer Python, TypeScript, React, Next.js Health-Tech We have partnered with an exciting Health-Tech start-up to build out their Product Engineering team to support their recent series A raise & ambitious growth plans🚀 Why it’s exciting They’re tackling one of the most emotionally and financially challenging areas in healthcare: fertility. Their mission is bold, to … make starting a family more accessible, while also improving operational efficiency across the fertility care ecosystem. ⚙️Stack: Python, TypeScript, React, Next.js AWS About you... 🛠 Experience as a Fullstack Product Engineer, ideally with some frontend experience too (nice to have) 📲 You've worked on a consumer product or love delving into user needs and bringing them to life through code 💻 You … ve got strong experience with Python, TypeScript, React, AWS, PostgreSQL 🌱 You want to join a small but mighty product-engineering team ✨ You want ship meaningful features with real customer impact, and contribute to shaping both product and technical direction The package £65,000–£90,000 + equity Private healthcare, fertility support/testing, enhanced parental leave £1K/year learning More ❯

Trading UI Engineer – Front Office JavaScript, React, typescript, NodeJS, Tailwind, GraphQL, ApolloQL, Webpack, Cypress, HTML, CSS, REST, Data Visualisation, API. Real Time Trading Software, UI Development Perm Role – London – Onsite. £80000 - £120000 plus bonus Harrington Starr has partnered up with a Global Investment Bank in the City of London who are looking to hire a Senior UI Trading Software Developer … specing out, designing and developing of UI screens for the users. This will require you to have client facing experience as well as low levy programming with JavaScript and React Development experience. Their systems cover all asset classes from FX, Fixed Income, Interest Rates and Commodities including derivative products although this knowledge is not essential but would be advantageous. The … application is a Real Time Trading application which displayed 1000’s points of Data for Trading decisions. Key Tech Stack: Extensive React UI Development. Solid JavaScript programming Experience with Typescript Experience with Data Visualisation development. HTML and C55 Experience in Real Time trading application. Experience with GraphQL RESTful API development. BSc with Computer Science, Engineering or Mathematics. With a generous More ❯

Senior Laravel Developer w/VueJS (or React/Angular and willing to cross train) 🌳🌳 Areti has partnered with a brilliant Fintech seeking an experienced Senior Full Stack Developer to join the team, working to deliver their bespoke financial software. You must be an advocate of best practices around architecture and agile methodologies. Hybrid London - 2 days p/w … one of their products frontends. Start-up experience and financial services experience is a bonus! The ideal candidates will have a skillset to include the following: Laravel Vue (or React/Angular and willing to cross train) PostgreSQL/MySQL Areti Group – Climate positive tech recruitment | 🌳🌳🌳 | We’re on a mission to put people and the planet before profit, leaving More ❯

Senior Laravel Developer w/VueJS (or React/Angular and willing to cross train) 🌳🌳 Areti has partnered with a brilliant Fintech seeking an experienced Senior Full Stack Developer to join the team, working to deliver their bespoke financial software. You must be an advocate of best practices around architecture and agile methodologies. Hybrid London - 2 days p/w … one of their products frontends. Start-up experience and financial services experience is a bonus! The ideal candidates will have a skillset to include the following: Laravel Vue (or React/Angular and willing to cross train) PostgreSQL/MySQL Areti Group – Climate positive tech recruitment | 🌳🌳🌳 | We’re on a mission to put people and the planet before profit, leaving More ❯

Frontend Developer – £650/day – 6 months – Inside IR35 – 3 days onsite (London) React or Svelte – Commodities Trading – AWS – TypeScript You'll be working for a leading energy trading business, building out a modern post-trade platform that's genuinely pushing boundaries – live PnL, intraday position reporting, and digitised front office workflows. This is a business that backs its tech … delivers fast, and builds for the long-term. The must-haves: Strong React or Svelte experience (this needs to be hands-on and recent) TypeScript Built modern UIs as part of a product team Comfortable working in fast-moving agile squads Experience in commodities or trading (preferred but not essential) Experience in Python or AWS Services - if you have both More ❯

Lead Full Stack Engineer – .NET/React Location: Central London, hybrid working, 2 days a week onsite. Day rate: £650-£800 (Outside IR35) Duration: 6 months with likely extensions Are you a hands-on technical leader who thrives at the intersection of frontend and backend development? We're looking for a Lead Full Stack Engineer to help shape the future … providing technical leadership and doing planning and delivery, refining requirements, etc. Must haves: Strong experience in C#/.NET to developer backend systems and service development Strong experience in React and TypeScript to deliver performant, scalable frontend apps Strong testing experience – from unit tests to accessibility and security checks Solid experience integrating and consuming RESTful APIs Highly Desirable: Building and More ❯

Backend skills in Node.js . You will be part of a high-performing engineering team building robust and scalable backend services, with opportunities to contribute to frontend features using React . Exposure to AWS and/or Next.JS is a strong plus. Key Responsibilities Design, develop, and maintain scalable backend services using Node.js. Collaborate with frontend engineers to build seamless … years of professional software development experience Proficiency in Node.js. Good understanding of software engineering principles, REST APIs, and asynchronous programming Experience with modern frontend development, ideally with React Nice to Have: Experience with NestJS Cloud experience with AWS services (Lambda, API Gateway, S3, etc.) Exposure to payments or fintech environments This role is 3 days on site in central London More ❯

with real-world impact — and care about AI being aligned with human values — this is the place to do it. 🛠️ Tech Stack Backend: Python, FastAPI, Flask, monorepo architecture Frontend: React, TypeScript Infrastructure: AWS, EC2, DynamoDB, Docker Tools: Custom eval libraries, observability tooling, real-time agent monitoring systems 🧠 What You’ll Work On Build full-stack features from architecture to production … For 6+ years as a Full Stack or Backend Engineer building production-grade software Strong backend experience with Python (FastAPI, Flask, or Django) Confident with modern frontend frameworks like React and TypeScript Skilled in building and maintaining APIs, cloud services (AWS or GCP), and containerized deployments Strong problem-solving skills, and comfortable in fast-moving, ambiguous environments Bonus: You've More ❯

this role looks like: Delivering performant, scalable code Enhancing app UX and onboarding journeys Helping Vennre scale across geographies and asset classes 🎯 Responsibilities Build and maintain features across our React-based web and mobile apps Develop cross-platform experiences using Remix and Capacitor (iOS/Android) Integrate securely with backend APIs and third-party platforms like Supabase Write clean, maintainable … reliability, and scalability Collaborate with Product, Design, and Growth teams to deliver value 🧠 Qualifications 4–6 years of experience in software engineering (startup or fintech preferred) Strong command of React, TypeScript, Node.js, and SQL Experience working with Remix, Supabase, or Capacitor a plus Familiarity with mobile development and responsive design Strong problem-solving skills and ability to work autonomously Comfortable More ❯

engineering team (currently 5 engineers) Balance hands-on development and architectural leadership with management responsibilities Drive the development of new features and greenfield products using .NET 8/9, React, Azure, and modern CI/CD pipelines Collaborate closely with DevOps, Product, customers, and global teams (including a team in Bulgaria) Own and influence technical design, architecture, and best practices … Balance legacy system understanding with innovation in new platforms Work closely with stakeholders across engineering, product, and leadership Tech Stack Backend: .NET Core 8/9, Azure Cloud Frontend: React, Typescript Database: SQL, Cosmos DB DevOps: CI/CD pipelines, Azure-based infrastructure What We’re Looking For Proven experience as a Tech Lead or Engineering Manager in startup or More ❯

and having recently secured funding to accelerate our growth. We are looking for a highly skilled Full Stack Developer with expertise primarily in database design and administration, Python and React to help us deliver exceptional, data-centric applications. Join us in making an impact while growing your career in a fast-paced and collaborative environment. Role Overview: We are looking … MySQL, etc), including query optimization, schema design, and data modelling. Proficiency with Python for backend services, data processing, and integration tasks. Experience with a modern front-end technology like React or Vue.js. Experience using, designing and documenting APIs and associated authentication methods. Familiarity with version control systems, ideally Git. Strong analytical and troubleshooting skills, with the ability to resolve complex More ❯

week on-site in London (secure government site) Clearance: Active DV Clearance required Rate: £700/day IR35 Status: Outside IR35 Duration: 6 Months (extension likely) Tech Stack: Frontend: React, Angular, TypeScript Backend: Node.js, Java What You’ll Be Doing: Designing, building, and maintaining scalable full stack applications Collaborating with cross-functional agile teams Supporting secure code integration and deployment More ❯

This client is looking for you to have a good understanding of Google and/or Microsoft AI technology stacks. Key skills required: Python, Node, Flask or Django Typescript, React or JavaScript Azure or GCP Deploy code to Google/Azure playgrounds REST and/or GraphQL API's CICD This client is looking to fill these positions ASAP, so More ❯

Power Automate and Power BI • Commercial experience with .NET Core and C# • Commercial experience of Azure including Azure Functions Integration • Commercial experience of frontend development with either Angular or React and knowledge of Fluent UI design • Proven experience in leading an offshore development team • Previous legal or professional services experience would be beneficial This is a hybrid role working three More ❯

tasks. Strong communicator with a passion for promoting best practices across the team. Strong Desirable: Experience with low-latency e-trading systems Business knowledge of financial markets Experience with React.js/TypeScript/JavaScript Experience with tick databases (e.g. KDB+) Experience with SQL, databases and object-relational mapping Experience with JMS or other asynchronous messaging APIs and implementations Experience with More ❯

experience. Startup energy: Work in a fast-paced, venture-backed environment where your ideas shape the product. Ownership: Drive technical decisions and mentor a growing team. Modern stack: Next.js, React, TypeScript, Python, FastAPI, PostgreSQL, Vercel (V0 & AI SDK), GCP. Perks: £90k+ equity, hybrid London, flexible hours, unlimited holiday, hardware budget. More ❯