476 to 500 of 739 React Jobs in London

Senior Software Engineer to help lead the technical evolution of this critical platform. The Opportunity You’ll join a growing team building scalable, secure systems using React , Python , and AWS , helping to drive our mission to cut the impact of flooding in half.This is more than just building products — it’s about delivering real-world impact through technology. What You … developers, promote best practices, and improve engineering workflows Shape technical strategy and contribute to long-term system improvements Drive code quality, observability, and resiliency across services Tech Stack Frontend : React, JavaScript/TypeScript Backend : Python (FastAPI, Flask, or Django), ideally with geospatial data processing Cloud : AWS (Lambda, ECS, RDS, S3, API Gateway, etc.) DevOps : Docker, CI/CD pipelines, Git More ❯

Role: Software Engineer (React) Length: Initial 3-month engagement Location: Hybrid - 2 days per week in London IR35 Status: Inside IR35 Pay Rate: £600 - £700 per day Clearance: SC Clearance One of my public sector clients are urgently looking for a React Software Engineer to join their team on a hybrid basis with travel to site 2 days per week … in London, this will be on an initial 3-month engagement. They are interested in React Software Engineers with experience of working in an Agile environment amongst multi-disciplinary teams. Active SC clearance is required for this position. Key Requirements Experience JavaScript, React, Node.js and TypeScript. Strong experience in writing reusable, testable components, within React. Proficiency in modern JavaScript (ES6 … developing accessible, responsive layouts using componentised CSS/SASS. Working practices such as test-driven development or behaviour-driven development. TypeScript testing using Jest or a similar framework and React Testing Library or Enzyme for component testing. Desirable Skills: Familiarity with SQL database concepts and hands on experience with PostgreSQL. Familiarity with version control using Git. Experience of continuous integration More ❯

SharePoint SPFx Developer 4 Month Contract Home Based Rate: £500 - £550 per day (INSIDE IR35) Skills: SPFx, React, Fluent UI, SC Clearance We are looking to recruit an SC Cleared SharePoint SPFx Developer for a leading technology consultancy on an initial 4 month contract. This is a remote role with occasional travel to London for Team & Customer meetings. We're … modern SharePoint development practices, and a good understanding of how to adapt on-premises solutions for SharePoint Online. Technical Skills: SPFx Development: Proven experience building and deploying SPFx solutions React & TypeScript: Strong proficiency in modern React development Fluent UI: Experience with Microsoft's Fluent UI design system SharePoint REST API: Integration with SharePoint lists and libraries Modern Tooling: Node.js, npm … model Experience with SharePoint lists, libraries, and content types Knowledge of SharePoint permissions and user context Familiarity with PnP JS library for SharePoint operations Additional Desirable Technical Skills: Advanced React: Hooks, context, state management, performance optimization Build Tools: Azure DevOps, GitHub Actions, CI/CD pipelines Testing: Integration testing, end-to-end testing with Playwright/Cypress Performance: Code splitting More ❯

them on their journey. 💼 Role Details Title: Lead Product Engineer Location: Hybrid – 3 days/week in Central London office Salary: Up to £180k + Equity Tech Stack: TypeScript, React, Next.js, little bit of GO - no prior experience needed This is a hands on role ✅ What They’re Looking For Engineers who think like product owners Prior startup success or 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 ❯

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 ❯

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 ❯

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 ❯

Build the Future of AI Agents as a Product Engineer ⚙️Python, Go, Typescript, React, LLMs 📍Hybrid Working: 4-days a week onsite in London, Soho 💰Base Salary: Ranging from £150k - £200k + Stock + Benefits Join a US Series C scale-up landing in the UK, on a mission to reinvent how businesses talk to customers Already valued at over More ❯

Build the Future of AI Agents as a Product Engineer ⚙️Python, Go, Typescript, React, LLMs 📍Hybrid Working: 4-days a week onsite in London, Soho 💰Base Salary: Ranging from £150k - £200k + Stock + Benefits Join a US Series C scale-up landing in the UK, on a mission to reinvent how businesses talk to customers Already valued at over More ❯

Build the Future of AI Agents as a Product Engineer ⚙️Python, Go, Typescript, React, LLMs 📍Hybrid Working: 4-days a week onsite in London, Soho 💰Base Salary: Ranging from £150k - £200k + Stock + Benefits Join a US Series C scale-up landing in the UK, on a mission to reinvent how businesses talk to customers Already valued at over More ❯

Build the Future of AI Agents as a Product Engineer ⚙️Python, Go, Typescript, React, LLMs 📍Hybrid Working: 4-days a week onsite in London, Soho 💰Base Salary: Ranging from £150k - £200k + Stock + Benefits Join a US Series C scale-up landing in the UK, on a mission to reinvent how businesses talk to customers Already valued at over More ❯

rapidly to explore new interaction patterns and design possibilities This is a collaborative, in-person role based in London, reporting directly to the CPTO. Tech Stack Front-end: TypeScript, React, Tailwind, Motion, and other modern libraries/tools Tooling: GitHub, Linear, Notion, Figma, Slack The Ideal Candidate You will be passionate about crafting seamless experiences that balance design and engineering. More ❯

rapidly to explore new interaction patterns and design possibilities This is a collaborative, in-person role based in London, reporting directly to the CPTO. Tech Stack Front-end: TypeScript, React, Tailwind, Motion, and other modern libraries/tools Tooling: GitHub, Linear, Notion, Figma, Slack The Ideal Candidate You will be passionate about crafting seamless experiences that balance design and engineering. More ❯

rapidly to explore new interaction patterns and design possibilities This is a collaborative, in-person role based in London, reporting directly to the CPTO. Tech Stack Front-end: TypeScript, React, Tailwind, Motion, and other modern libraries/tools Tooling: GitHub, Linear, Notion, Figma, Slack The Ideal Candidate You will be passionate about crafting seamless experiences that balance design and engineering. More ❯

rapidly to explore new interaction patterns and design possibilities This is a collaborative, in-person role based in London, reporting directly to the CPTO. Tech Stack Front-end: TypeScript, React, Tailwind, Motion, and other modern libraries/tools Tooling: GitHub, Linear, Notion, Figma, Slack The Ideal Candidate You will be passionate about crafting seamless experiences that balance design and engineering. More ❯

Software Developer (Java/Kotlin/React.js) Hybrid – London or Munich£70,000 - £90,000 p/a + BenefitsAn innovative digital insurance platform is looking for a talented Full Stack Software Developer to join its growing international team. The business is transforming the way consumers engage with insurance, creating simple, transparent, and personalised experiences, and now expanding into new … working with modern tools and practices. Key Responsibilities Lead development of core platform services and REST APIs in Kotlin . Build and integrate front-end applications with TypeScript and React.js . Maintain and evolve operational data sources ( PostgreSQL ). Integrate external 3rd-party data services. Develop AWS Lambdas in TypeScript and evolve AWS infrastructure using Terraform . Contribute to architectural … decisions and technical strategy in an Agile environment. Requirements Degree in Computer Science or related field. 6+ years’ experience in Java/Kotlin, TypeScript, and React.js (or similar). Strong SQL skills with hands-on PostgreSQL experience. Comfortable working with microservices, monoliths, and message-oriented architectures. Solid understanding of Agile best practices (CI/CD, testing, clean code, evolving architecture More ❯

hands-on leadership position where you'll balance technical delivery with mentoring and architectural direction. Key Responsibilities Lead the design, development, and deployment of full-stack applications using Java, React, JavaScript , and AWS . Provide technical leadership and direction to development teams. Collaborate with architects, product owners, and stakeholders to deliver secure and scalable solutions. Champion best practices in agile … Support and mentor junior and mid-level developers. Ensure all solutions meet government and security compliance standards. Skills & Experience Essential: Active SC Clearance . Strong background in Java and React development. Proficiency with AWS and modern JavaScript frameworks. Experience leading technical teams or projects in an agile environment. Excellent problem-solving, communication, and stakeholder engagement skills. Desirable: Previous experience working More ❯

our programmatic and data-driven integration platforms, with a focus on scalability, reliability, and clean architecture. You will work across the full technology stack, with a primary focus on React.js for front-end development and Node.js for back-end services. You'll manage complex data flows in PostgreSQL , utilize Redis for caching and performance optimization, and implement robust messaging systems … testing, deployment, and DevOps automation. Contribute to a culture of innovation, collaboration, and continuous technical improvement. Key Responsibilities Lead the design and development of dynamic, responsive web applications using React.js , Node.js , and related technologies. Build and optimize PostgreSQL databases, including schema design, complex queries, and performance tuning. Implement and manage Redis for caching, session management, and real-time data access. … user needs. Stay current with emerging technologies, frameworks, and industry best practices, applying them where relevant. Skills & Experience Proven experience as a Full Stack Developer with strong proficiency in React.js and Node.js . Solid understanding of PostgreSQL and Redis for data management and caching. Experience with Kafka or similar message streaming platforms. Strong knowledge of CI/CD tools (e.g. More ❯

of the contract is 6 months . The pay rate on offer is £750 - £880 per day (via Umbrella - inside IR35) . Key responsibilities Front end implementation for a React application Visualizing and interacting with scientific data and workflow progression Integration of AI/ML components with frontend, backend, data and compute infrastructure Responsible for high quality software implementations according … engineers in the team and across allied teams, to build an end-to-end pipeline consuming other data products Basic qualifications: 5+ years' experience with frontend software development (e.g. React) Demonstrated experience of Python development (e.g. using FastAPI) Bachelor's degree in a relevant field (including computational, numerate or life sciences), or equivalent experience Cloud experience (e.g. Google Cloud and 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 ❯

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 ❯

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 ❯

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 ❯