276 to 300 of 343 React Jobs in London

Figma (or similar) Portfolio showing end-to-end product design work Experience building and maintaining design systems Development HTML, CSS, JavaScript/TypeScript React (our stack is React + TypeScript + Tailwind) Comfortable turning designs into responsive, accessible interfaces Experience creating reusable component libraries Mobile development (React Native, iOS, Android ...

mobile products. You will play a pivotal role in high-impact projects across our entire stack, from crafting polished user interfaces in Next.js and React Native to building robust backend services in Python. This is a high-impact opportunity for someone eager to learn fast, take ownership, solve real problems … help power the next generation of educational technology. Role Responsibilities Build and maintain features across our web app (Next.js) and mobile app (React Native) Contribute to our Python backend and help improve API performance Collaborate on database design and write efficient queries in Postgres Work with AWS services to deploy ...

Python Developer/Full Stack Engineer (Python Django React) Remote UK to £80k Do you have strong Python and Django skills? You could be progressing your career at a tech scale-up, with recent investment, that is helping vulnerable people to reclaim money due to them via irresponsible lending. … Python Developer you will collaborate with the CTO and work with modern web technologies (primarily Django and React) to build complex web applications, improving existing services and creating new ones. You'll work across the full development lifecycle to produce high quality, well tested code through to deployment, automating ...

stack, but an eagerness to learn and the ability to leverage AI tooling to get bootstrapped quickly is a must: Frontend TypeScript Next.js + React - App Router with React Server Components Shadcn UI, Radix UI & Tailwind CSS - Utility-first CSS framework Data BigQuery - Cloud data warehouse Dataform - SQL transformation framework ...

Design Team | Front End Developer | React | Astro | Websites | London London | £140,000 + Benefits I’m hiring a Front-End Developer for a highly respected developer tools company whose software is used inside mission-critical, data-heavy applications. This is a hands-on frontend role embedded within the design team. … function rather than working on core product libraries. What you’ll be doing Building and maintaining components and pages across the clients websites using React and Astro Implementing marketing, tracking, and back-office integrations (e.g. Salesforce, analytics tools) Developing interactive frontend elements that connect to external services Creating prototypes ...

With Python development at a high level FastAPI or adjacent Python backend frameworks API design and backend architecture fundamentals PostgreSQL and/or MongoDB React or React Native for frontend collaboration AWS serverless infrastructure Docker for bespoke services Nice to Haves B2C mobile or consumer product experience Experience ...

resilient—especially for customers who are underserved by traditional banking. This is a full-time, onsite role in London (Shoreditch) . As a React Native Mobile Engineer , you’ll lead the development of key mobile experiences end-to-end—from crafting high-quality, performant interfaces to integrating with backend APIs … closely with product, design, and engineering leadership to ship features that users rely on for sensitive, high-trust financial workflows. Who You Are Strong React Native engineer: You build polished, reliable mobile experiences and care about performance and UX details. TypeScript-first: Confident shipping production apps using TypeScript and modern ...

Full Stack Engineer (React Native, Node.js, AWS) Location: London, UK - Full Time, On-site. A well-funded fintech start-up is hiring for a Full-Stack Engineer to help craft both the experience and infrastructure that power their mission. Backed by top-tier investors with over $30 million raised … them to life. You will be a pivotal part of the engineering team, with a prominent focus on building out the mobile application in React Native, while moving fluidly across the stack to develop the NestJS backend services and manage the AWS infrastructure required to deliver a secure, seamless financial ...

helping our customers make their food offering more sustainable. Our product is built around PostgreSQL, a Django backend (using typed Python), Rust and a React (Typescript) frontend. We use AWS for our infrastructure and Figma for our user interface designs. In this role you will be working directly on product … software engineer you will be responsible for the technical design, implementation, testing, release and support of our application with a particular focus on our React front end. You will be working closely with our small team of in house software engineers, product manager and product designer, as well ...

Full Stack Developer X2 (Mid-Level React.js, Node.js) Product Development (Remote, UK-based) £50k - £60k Full Stack Software Developer required to join our clients growing Product Development team. This is a unique opportunity to work remotely in the UK, contribute to modern digital platforms, and shape the future … based architecture They work with a variety of technologies. Youll ideally have experience with some of the following, or be open to learning: JavaScript: React, Node.js, Jest, Cypress Ruby (non-Rails environment) nice to have AWS: EC2, ECS, Lambda, S3, SQS Serverless.com Databases: MongoDB & PostgreSQL They are looking for someone ...

Staff-Principal Full Stack Engineer | Hyper-Growth Fintech & Tech-for-Good | Typescript, React.js, Node.js, Next.js | £110k-170k + Equity | 3 days hybrid in London Opportunity: We're supporting a hyper-growth fintech client that is also tech-for-good. They’ve got big hiring plans for the year … currently looking for Staff & Principal Full Stack Engineers to join the team. You’ll be working with Typescript, React.js, Node.js, Next.js & more, working to shape the product direction and technical architecture as they continue to scale their business and expand into new markets. What You'll Be Doing ...

enjoy creating innovative solutions, collaborating in a fast-paced environment, and learning from talented peers, this role is for you. Responsibilities Develop React applications on the frontend and work with REST API or GraphQL servers. Collaborate in a product/engineering team with frontend, backend, and platform engineers, as well … through pair programming and code reviews. Contribute to solving challenges associated with large-scale systems and data-intensive applications. Essential skills Strong experience with React and TypeScript . Experience using Apollo GraphQL . Experience with NextJS or Gatsby . Experience with unit testing , preferably Jest or Vitest . Strong software ...

small team, you will build and implement new features across the full tech stack, with a focus on backend Python and TypeScript and some React work on the front end. You'll take ownership and work across the full development lifecycle, collaborating with customers to build and scale the product. … home twice a week. About you: You have strong backend Python coding skills, including API development You have full stack experience, including TypeScript and React (or another framework) You have a good understanding of system design and scalability You're familiar with other technology in the stack including: AWS, Terraform ...

advancing large language models, collaborating closely with researchers. This includes curating code examples, providing precise solutions, and making corrections in Python, JavaScript (including ReactJS), C/C++, Java, Rust, and Go; evaluating and refining AI-generated code for efficiency, scalability, and reliability; and working with cross-functional teams to enhance … Typical Day Look Like? Working on AI model training initiatives by curating code examples, building solutions, and correcting code in Python, JavaScript (including ReactJS), C/C++, Java, Rust, and Go. Evaluate and refine AI-generated code to ensure that it is efficient, scalable, and reliable. Collaborate with cross-functional ...

push the boundaries of how AI can be applied to connectivity challenges. Our stack Backend: PHP (Laravel), Python (for AI/ML workflows) Frontend: React, Next.js (preferred), with flexibility for other modern frameworks Infrastructure: AWS (including Lambda, S3, DynamoDB), DigitalOcean Data: MySQL, Redis, NoSQL stores Dev tools: GitHub, CI/… equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. Tags/Skills: Lead Software Engineer, Laravel, React, Python, AWS, AI/ML, n8n, Claude Code, Cursor, Docker, Startups, DevOps ...

About PRODA At PRODA (www.proda.ai) we are building software to unlock the full potential of Real Estate Data no matter the asset class, language, or country of origin. Our solution leverages the latest technologies to ...

building UI for complex technical software - you’ll love this role. What You’ll Work On Own the architecture and evolution of a large React + Next.js codebase Build UI systems for workflows, job orchestration, experiment tracking, and complex state Design robust state management approaches (React Query/TanStack, etc. … engineers to shape user workflows across the platform Build testable, maintainable, production-grade UI code What We’re Looking For 4+ years building production React applications Deep React knowledge: architecture, hooks, rendering optimization, suspense, memoization Strong Next.js experience (routing, data loading, server vs client rendering) Strong TypeScript skills Experience with ...

Full Stack Developer (80% React/20% Java) Location: Fully Remote (UK Based) Rate: £525 per day (Inside IR35) Clearance: Active SC Clearance (Essential) Contract Length: Initial 6 months We are looking for a Frontend-heavy Full Stack Developer to join a long-term digital transformation programme. This … high-impact role within a complex, state-driven environment, perfect for a React expert who is comfortable dipping into the Java backend when required. The Technical Balance React (80%): You will lead on the frontend, building high-performance, accessible (GDS-aligned) user interfaces and complex dashboards. Java (20%): You will ...

Senior .NET/React Developer - Global Markets Inside IR35 Contract Role - London - Up to £850 per day About the Role: We are currently seeking an experienced Senior .NET Developer to join a leading global financial institution in London. This is a 6-month contract with strong likelihood of extension, working … applications: A desktop application launcher/management system built with WPF and .NET A background business alerting application that processes system events Develop new React admin screens as part of extending these applications to new business units Participate in architecture improvements to support broader deployment Work closely with a small ...

Front End Engineer/Developer (React v19 TypeScript) London/WFH to £95k Are you a Front End technologist looking for an opportunity to progress your career in a hands-on role with lots of learning opportunities? You could be joining a Hedge Fund with complex work and substantial bonus … 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 ...

some of the sharpest and most demanding minds in global finance. What You’ll Be Doing Building lightning-fast, data-intensive UIs using React and TypeScript Partnering with back-end engineers, traders, and product leads to shape next-generation trading tools Designing and evolving front-end architectures for real-time … visualisations Working in an environment where craftsmanship, performance, and code quality are taken seriously — every single day Tech Stack Languages: TypeScript, JavaScript (ES6+) Frameworks: React, Redux (or similar state management) Tooling: Webpack, Babel, Jest, ESLint, Git Bonus: WebSockets, performance profiling, custom charting (D3.js, Highcharts) What They’re Looking For Deep ...

Front-End Developer - React, Typescript Location: Ipswich (Onsite, 5 days per week) Contract Duration: 7 months IR35 Status: Inside IR35 About the Role My client, a leading global tech company , is looking for an experienced Front-End Developer . This role involves rewriting existing in-house applications using TypeScript … React , ensuring they meet modern standards and deliver exceptional user experiences. Key Responsibilities Review current applications and architecture Rebuild the codebase using TypeScript and React Document requirements in JIRA and work within Agile frameworks Write automated tests and maintain technical documentation Participate in sprint ceremonies, demos, and collaborative development activities ...

Title: Senior Software Engineer Salary/Package: £70k-£100k + Equity Company Sector: Fintech (SaaS) Tech: TypeScript, Node, React, Next, GraphQL, AWS Location: Central London (London Bridge/Bank) WFH/Hybrid: 2-3 days in office (Bank) I'm hiring a full-stack Software Engineer for a small, high … build loops, meaningful ownership, and shipping at pace (not endless planning), you'll like this. The Role You'll work across a modern stack – React, TypeScript, Node, Postgres, AWS - taking features from idea → data model → polished UI → production. You'll shape the architecture as the product scales, work closely with ...

Level Software Engineer (React/TypeScript/Node) Up to £60,000 | Hybrid (3 days onsite) We're looking for a mid-level software engineer to join a small, stable product team working on an internal design and animation tool used widely across the business. This is a proper … through problems yourself, and contribute beyond just picking up tickets. The role You'll be working mainly on the front end, building features in React using TypeScript . TypeScript is used everywhere, so you'll need to be comfortable with it or able to pick it up quickly. There ...

environments. What you'll do: Embed on-site with customers to understand GxP validation and compliance challenges Build and deploy full-stack features (TypeScript, React, Node.js) in customer environments Turn complex, high-stakes workflows into production-ready, compliant systems Surface requirements and edge cases that inform platform development Own outcomes … with high autonomy What they're looking for: Strong full-stack engineering fundamentals (TypeScript, React, Node.js) Smart, hungry, intellectually curious (strong academic backgrounds valued) Comfortable with ambiguity, autonomy, and high-stakes environments Genuine appetite for travel and on-site work (~30% international) Bonus: exposure to regulated industries (pharma, biotech, aerospace ...