151 to 175 of 243 React Jobs in the Thames Valley

3x Days per week on-site 3-6 Month Contract One of our major banking clients is looking for a Front end Developer. Must-Have Skills: Strong proficiency in React and JavaScript . Deep understanding of web accessibility standards and testing methodologies. Experience designing and implementing component libraries . Familiarity with enterprise CMS platforms . Demonstrated success in a Banking More ❯

backing of a major corporate and their security. Up to £90,000 base + annual bonus (10%) + excellent benefits Please reach out if: ✅ You have fullstack TypeScript/React experience ✅ Proven Senior SWE or Product Engineer who has worked on products with AI features ✅ Enjoy both hands-on coding and technical leadership ✅ Are comfortable making architectural calls in a More ❯

and interactivity. Write and maintain comprehensive unit and end-to-end tests to ensure reliability at scale. You should have Strong experience with TypeScript/JavaScript and modern frameworks (React or similar). A proven track record of delivering polished, performant, and elegant user interfaces. Deep appreciation for UI/UX craftsmanship and accessibility. Familiarity with HTTP, REST APIs, websockets More ❯

product design. •Mastery of interaction and visual design; working knowledge of research methods. •Proficiency with Figma and modern prototyping tools. •Comfort working with engineers in Agile environments (Angular/React familiarity preferred). Nice-to-Haves •Prior experience contributing to a design system. •Experience in energy, engineering, or industrial domains. •Completion of a Masters Degree is a plus. Halliburton is More ❯

About the Job Senior Fullstack Engineer (React/.Net) – London (Victoria) | Hybrid £80k - £110k Are you ready to craft the next generation of data-driven digital experiences for one of Europe’s most technically advanced SaaS innovators? Our client, a pioneer in B2B SaaS solutions , is building “Your Shipping Analytics Supercomputer” , providing cutting-edge data visualisation and dynamic dashboards for … Senior Full-stack Engineer , you’ll play a key role in architecting and developing scalable, high-performance web applications that bring complex data to life. Working across both frontend (React, TypeScript) and backend (.NET Core, C#) technologies, you’ll collaborate with product, design, and data science teams to create seamless, intelligent solutions that define the future of shipping analytics. This … ideal for someone who thrives in fast-paced, high-growth environments. What You’ll Bring 5+ years of experience building large-scale, production-grade web applications. Strong proficiency with React, TypeScript/JavaScript, HTML, and CSS . Proven experience with C#, .NET Core , and SQL-based databases . Understanding of Design Patterns and SOLID principles . Experience designing and consuming More ❯

.NET Developer, C# - Global Technology Brand - Witney, Oxfordshire (Tech stack: .NET Developer, .NET 9, ASP.NET, C#, WPF, React, Angular 19, Microservices, Azure, Web API 2, Entity Framework, Agile, Programmer, Full Stack Engineer, Architect, .NET Developer)Our clients fascinating story dates back to 1981; today they have fast become one of the most instantly recognised technology brands across the globe. Their … web application development (.NET Core/ASP.NET MVC, C#) or winforms/WPF (C#) development. Our client will provide you with training into: .NET 9, WPF, MVVM, Prism, JavaScript, React, Angular 19, Microservices, MongoDB, Vue.js, TypeScript, Azure, AWS, Web API 2, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and Azure SQL.You will follow the firms official career progression More ❯

we're seeking a Full Stack Software Engineer to join our team! We're particularly looking for someone with strong Golang experience and with some experience of TypeScript and React frontend development . If you also have a knack for Kubernetes/containerisation, that's a significant bonus! In this role, you'll be a key contributor to the development … Software Engineer, you will: Engineering of Golang-based backend systems , focusing on API development and integration. Contribute significantly to software development on our TypeScript-based frontend systems , primarily utilizing React to craft intuitive and highly functional user interfaces. Productize and enhance our Kubernetes-based cloud platform to ensure high-availability, scalability, and cost-efficient ML workflows. Work proficiently across the More ❯

Full Stack Engineer | .NET & React | Financial Services | London We’re partnered with a leading global energy and commodities organisation that’s investing heavily in its digital transformation journey. With a strong presence across EMEA, the Americas, and APAC, the business is scaling its in-house analytics platforms to drive smarter, data-led decisions across trading, logistics, and infrastructure operations. The … role: As a Full Stack Developer , with proven skills in . NET and React , you’ll join a highly collaborative analytics team in London, helping to design and deliver scalable, high-impact applications that harness data from global operations. You’ll work closely with technical and business stakeholders to translate ideas into actionable solutions that add real commercial value. Key … Science, MIS, or related discipline. 4–7 years’ experience with C#/.NET technologies, ideally including ASP.NET Core and Web APIs. 3+ years’ experience developing front-end applications using React, or similar frameworks, but React is the strong preference here. Strong JavaScript and CSS skills with an eye for design and UX. Experience with SQL and relational databases such as More ❯

experience, including 2–3+ years in AI/ML applications. Proven track record of shipping AI products into production (not just research or prototypes). Preferred tech stack - TypeScript, React, LangChain, and LLM orchestration. Experience with RAG systems , vector databases (e.g. Pinecone, PGVector, Weaviate), and model evaluation . Comfortable working in a fast-paced startup environment with a high degree More ❯

required Knowledge of IoT platforms, IoT gateways, data acquisition, data analytics and cloud solutions is required Knowledge of Edge Computing and Digital Twins is preferable Experience in coding (Python, React, Javascript, etc.) and in designing and developing Graphical User Interfaces (GUI’s)/dashboards is a plus Holding certifications from relevant organizations/training institutes is also desirable More ❯

an active role on both sides and define how the application looks and how it works. Responsibilities: •7-9 years of experience in Developing and implementing UI components using React.js •Collaborating with cross-functional teams to design and ship new features •Building reusable components and front-end libraries for future use •Translating designs and wireframes into high-quality code •Optimizing … ensure smooth user experiences •Participating in code reviews to maintain code quality and consistency Qualifications & Skills: •A degree in computer science, software engineering, or a related field •Proficiency in React.js and its core principles •Strong JavaScript, TypeScript HTML5, and CSS3 skills •Experience with popular React.js workflows (such as Redux) •Familiarity with RESTful APIs and integration •Knowledge of modern authorization mechanisms More ❯

Python Developer Python - React - £45,000-£55,000 - London (Hybrid) Are you a Python Developer who enjoys building high-performance backend systems and visually engaging frontend dashboards? This is an exciting opportunity to join a growing tech company using data, AI, and smart visualisation to make a real impact in the way cities and organisations operate. You’ll be part … digital products that turn complex datasets into meaningful, actionable insights. Experience required Developing robust backend services using Python (Flask, FastAPI). Building intuitive, responsive dashboards with modern frontend frameworks (React). Ensuring performance, scalability, and accessibility across all devices. Managing deployments using Docker and AWS. Monitoring system performance and maintaining reliable infrastructure. Collaborating with cross-functional teams to bring new … ideas to life. Tech stack Strong experience with Python web frameworks (Flask, FastAPI). Skilled in modern frontend development (React, JavaScript, HTML/CSS). Understanding of responsive design, accessibility, and UX best practices. Experience with Docker, AWS, and CI/CD pipelines. Knowledge of Git, version control, and deployment automation. Familiarity with REST APIs, SQL optimisation, or async programming More ❯

opportunity to grow quickly in a cutting edge AI environment. What You’ll Do - Build and scale cloud native systems with performance and security in mind - Develop with TypeScript, React/Next.js, Node.js and Python - Manage SQL and NoSQL databases (PostgreSQL, MongoDB, Redis, etc.) - Deploy to Google Cloud (GCP) using Docker, Kubernetes and CI/CD pipelines - Work closely with … designers, product leads and fellow engineers What You’ll Bring - Strong full stack experience with TypeScript and Python - Expertise in React/Next.js and backend microservices - Solid understanding of database design, CI/CD and cloud deployment - A passion for clean, scalable systems and continuous learning Join a team of brilliant minds where you’ll make a real impact shaping More ❯

with the goal to progress into Engineering Manager over time. This is a frontend-leaning leadership role, focused on: Web performance SEO Landing pages Experimentation and optimisation Tech stack: React, Typescript, Tailwind, Astro As a profitable, employee-owned, full product-led company, this is an opportunity you don’t want to miss! You will enjoy excellent benefits as a Frontend More ❯

Company | SaaS, Product, B2B2C, Enterprise 📏 Size | 2.5k globally, 300 in London 🧢 Role | Engineering Manager 🎯 Areas | team building, people leadership, product development ✨ Tech | Node.js, React 📍 Based | London (Zone 1) 💻 Hybrid | 3 days a week in-office 💰 Offer | £120-135k + bonus + RSUs Hi Workonomics are partnering with a well-known, much-loved, multi - product SaaS company. They're an More ❯

Senior Frontend Engineer (React/TypeScript) – SC Cleared (MOD) 3-month contract (extendable) £550–£600/day Outside IR35 Hybrid – Thames Valley Join a cutting-edge UK-based AI company building intuitive, high-performance interfaces for generative AI platforms. We’re seeking a Senior Frontend Engineer to lead the development of user-facing experiences that make advanced AI capabilities accessible … performant, responsive web applications with real-time streaming capabilities. The Role: Ownership of frontend architecture for AI-driven chat platforms, from design to deployment Development of scalable SPAs using React 19, TypeScript, and Vite for optimal performance Implementation of authentication flows with Azure MSAL/OAuth2 and secure session handling State management using Zustand and TanStack Query for seamless client … server sync Integration of streaming AI endpoints via AI SDK React, including WebSocket handling and graceful degradation Deployment via Docker containers with multi-stage builds and CI/CD pipelines using GitHub Actions Collaboration with DevOps for AWS CloudFront/S3 delivery, caching, and CDN optimization Accessibility leadership (WCAG 2.1 AA), cross-browser testing, and performance monitoring via Web Vitals More ❯

Senior Frontend Engineer (React/TypeScript) – SC Cleared (MOD) 3-month contract (extendable) £550–£600/day Outside IR35 Hybrid – Thames Valley Join a cutting-edge UK-based AI company building intuitive, high-performance interfaces for generative AI platforms. We’re seeking a Senior Frontend Engineer to lead the development of user-facing experiences that make advanced AI capabilities accessible … performant, responsive web applications with real-time streaming capabilities. The Role: Ownership of frontend architecture for AI-driven chat platforms, from design to deployment Development of scalable SPAs using React 19, TypeScript, and Vite for optimal performance Implementation of authentication flows with Azure MSAL/OAuth2 and secure session handling State management using Zustand and TanStack Query for seamless client … server sync Integration of streaming AI endpoints via AI SDK React, including WebSocket handling and graceful degradation Deployment via Docker containers with multi-stage builds and CI/CD pipelines using GitHub Actions Collaboration with DevOps for AWS CloudFront/S3 delivery, caching, and CDN optimization Accessibility leadership (WCAG 2.1 AA), cross-browser testing, and performance monitoring via Web Vitals More ❯

doing: Design, develop, test, deploy, and maintain robust and scalable backend systems and APIs using Python Build intuitive, performant, and delightful frontend user interfaces using modern JavaScript frameworks like React Work with databases to design schemas, write efficient queries, and ensure optimal performance Contribute to overall system architecture, ensuring scalability, reliability, and security Collaborate closely with product managers, designers, AI … he team What are we looking for: At least 7+ years in professional full-stack software development Strong proficiency in Python for backend development Experience with modern frontend frameworks (React, Vue, Angular) Solid understanding of database technologies (PostgreSQL, MySQL) and data modeling Experience designing and building RESTful APIs Experience with cloud platforms (AWS, GCP, Azure) and containerization (Docker) Bonus: Experience More ❯

to help build and scale their AI-enabled workspace for professional services, investment banking, and asset managers. What you’ll be doing Building and maintaining frontend web applications using React and Next.js Developing, testing, and deploying backend services and APIs (Python preferred, e.g. Django, FastAPI) Working closely with founders, design, growth, and other engineers to ship high-impact features Ensuring … and helping improve engineering practices across the team What they’re looking for At least 5 years’ professional software engineering experience Strong experience delivering production-grade web applications with React and Next.js Solid backend skills, preferably in Python , with good understanding of both relational and NoSQL databases Familiarity with Git and collaborative workflows, background workers/task queues (e.g. Celery More ❯

the wider engineering community to foster an inclusive and collaborative culture, encouraging peer to peer feedback and evolving healthy, curious and humble teams. Tech Stack: Python, Javascript/Typescript, React/React Native, AWS, GraphQL, Snowflake, Airflow, DDD. This is an incredible opportunity for a Senior Software Engineer to join a unique company as they embark on a period of More ❯

Senior Frontend Developer (React) – Series A GenAI Security Scale-up 🔐 💰 Salary: £120,000 - £135,000 (DOE) + equity + benefits 📍 Hybrid: 2 days/week in Central London office (Kings Cross/Covent Garden area) A Series A, high-growth cybersecurity scale-up (~40 employees) is looking for a Senior React Engineer to join their mission of helping companies adopt … US AWS deployment. You'll be joining a small but highly capable engineering team where your impact will be significant from day one. ⭐ They are looking for a Senior React Engineer with the following: Senior hands-on React experience in a product-focused SME Strong design skills and background with TypeScript, HTML and CSS Ability to work independently and own … paced environments – scale-ups or consultancies preferred A passion for solving complex UX/UI challenges Nice to have: experience with Figma and component-based design systems (Storybook) 💻 Tech: React, TypeScript, Figma, Storybook, Git, CI/CD You’ll work closely with a highly technical Senior React Engineer to strengthen and scale their high-performance web applications. If you're More ❯

using Django as a web framework, and Django Rest Framework for our API Angular and TypeScript on the client side for our mobile apps and booking flow Next.js and React for parts of our marketing website Ionic for hybrid and progressive mobile apps PostgreSQL for our database, using some of its advanced geographic modelling capabilities Metabase for analysis and self More ❯

engineers. Your responsibilities will include developing the web platform and mobile app, building APIs, supporting integrations, and deploying machine learning models into production. Requirements: Strong full-stack development skills ( React/Next.js, Node.js, Python, TypeScript ). Experience with mobile app development (React Native or Flutter) or integration with iOS/Android apps. Backend expertise (databases, APIs, authentication, security). Cloud More ❯

platforms that drive cutting-edge online gaming experiences. You’ll also play a senior position in driving the move from a PHP-heavy stack to a modern TypeScript/React front end, helping define and deliver greenfield solutions with a premium, customer-first focus. Role and Responsibilities Drive full-stack development projects, ensuring high-quality delivery across both frontend and … backend. Act as a technical lead for React/TypeScript adoption, mentoring the team (currently PHP-heavy) and raising overall capability. Architect and implement scalable, performant solutions that power high-traffic, real-time platforms. Take ownership of key greenfield projects, shaping the technical direction for premium UI/UX. Collaborate with cross-functional teams to align technical solutions with business … goals. Support DevOps and CI/CD initiatives where possible. Essential Skills and Experience Proven experience with PHP (backend) and TypeScript/React (frontend). Track record of leading or mentoring in engineering teams. Experience building greenfield projects Familiarity with Node.js/NestJS is desirable but not essential. Strong understanding of design patterns, scalability, and system performance. DevOps experience (Docker More ❯

across front-end, back-end, and infrastructure layers Collaborate with clients, customer success, and engineering teams to identify root causes and deploy effective solutions Work hands-on with Node.js, React, SQL, and AWS to maintain and enhance platform functionality Contribute to improving support processes, documentation, and system reliability Continuously develop your technical knowledge across a range of technologies Required Skills … Experience: 3+ years’ experience in Node.js development Proficiency in TypeScript and JavaScript Experience with React , Express , and REST API development Strong understanding of SQL and Git Excellent analytical and problem-solving skills A genuine enthusiasm for learning and tackling complex technical challenges Bonus Experience (Nice to Have): AWS (hosting, deployment, configuration) Agile development practices Experience in technical customer support Knowledge More ❯