601 to 625 of 795 React Jobs in the South East

Senior Software Engineer | High-growth, Purpose-Led and A* funded Fintech | Hybrid – London **Python, TypeScript, React** A leading fintech scale-up is hiring a Senior Software Engineer to join its high-performing engineering organisation in London. This is an opportunity to contribute to a platform designed to improve finance globally — with real impact at scale. The company operates at the … example through code reviews and mentoring. Maintain a user-centred mindset , constantly measuring and iterating on how engineering decisions translate into product value. Technical Environment: Languages & Frameworks : Python, TypeScript, React, Svelte Infrastructure & Tools : AWS, PostgreSQL, Snowflake, CI/CD pipelines Ways of Working : Agile squads, continuous delivery, outcome-oriented culture You’ll work in a collaborative, engineering-led environment where More ❯

Full Stack PHP Developer (React & Typescript) – £80,000 – Hybrid Overview A global digital marketing and technology agency specialising in online gaming is seeking a Software Developer to join its high-performing development team. This role offers the opportunity to work on scalable, high-throughput systems that power real-time user experiences in the iGaming sector. You’ll play a key … Role and Responsibilities Work across the full stack, with an even split between frontend and backend development. Contribute to the transition from a PHP-heavy stack towards TypeScript/React-based frontend applications. Deliver scalable, performant, and reliable solutions for high-traffic platforms. Collaborate with designers, product teams, and fellow engineers to raise the standard of customer-facing experiences. Write … best practices. Contribute ideas for technical improvements and new greenfield builds. Essential Skills and Experience Strong commercial experience with PHP (backend). Solid hands-on skills with TypeScript and React (frontend). Exposure to Node.js or NestJS desirable (but not essential if TypeScript is strong). Background in greenfield development projects Comfortable working in collaborative, agile teams. DevOps/cloud More ❯

Full Stack PHP Developer (React & Typescript) – £80,000 – Hybrid Overview A global digital marketing and technology agency specialising in online gaming is seeking a Software Developer to join its high-performing development team. This role offers the opportunity to work on scalable, high-throughput systems that power real-time user experiences in the iGaming sector. You’ll play a key … Role and Responsibilities Work across the full stack, with an even split between frontend and backend development. Contribute to the transition from a PHP-heavy stack towards TypeScript/React-based frontend applications. Deliver scalable, performant, and reliable solutions for high-traffic platforms. Collaborate with designers, product teams, and fellow engineers to raise the standard of customer-facing experiences. Write … best practices. Contribute ideas for technical improvements and new greenfield builds. Essential Skills and Experience Strong commercial experience with PHP (backend). Solid hands-on skills with TypeScript and React (frontend). Exposure to Node.js or NestJS desirable (but not essential if TypeScript is strong). Background in greenfield development projects Comfortable working in collaborative, agile teams. DevOps/cloud More ❯

Full Stack PHP Developer (React & Typescript) – £80,000 – Hybrid Overview A global digital marketing and technology agency specialising in online gaming is seeking a Software Developer to join its high-performing development team. This role offers the opportunity to work on scalable, high-throughput systems that power real-time user experiences in the iGaming sector. You’ll play a key … Role and Responsibilities Work across the full stack, with an even split between frontend and backend development. Contribute to the transition from a PHP-heavy stack towards TypeScript/React-based frontend applications. Deliver scalable, performant, and reliable solutions for high-traffic platforms. Collaborate with designers, product teams, and fellow engineers to raise the standard of customer-facing experiences. Write … best practices. Contribute ideas for technical improvements and new greenfield builds. Essential Skills and Experience Strong commercial experience with PHP (backend). Solid hands-on skills with TypeScript and React (frontend). Exposure to Node.js or NestJS desirable (but not essential if TypeScript is strong). Background in greenfield development projects Comfortable working in collaborative, agile teams. DevOps/cloud More ❯

Full Stack Node.js/React Developer - FinTech Innovation Team 📍 London (Victoria) - Hybrid | UK Remote considered 🏦 Join a regulated FinTech transforming global payments 🚀 Shape the Future of Financial Services Join our new strategic team at a cutting-edge FinTech backed by Banking Circle's international payment rails. We're transforming how businesses access account-to-account payments, card issuing, and financial … services across UK, EU, and US markets. You'll rebuild critical client-facing applications from the ground up, pioneering our move to Node.js/React and API-first architecture. 🏦 About Us Regulated EMI in UK & EU, with US sponsor bank partnerships Visa & Mastercard member - card issuer Global reach with homogeneous services across three major markets Dual client base serving both … robust middleware solutions connecting frontend experiences to financial services Implement secure OIDC/OAuth flows for multi-tenant financial applications Strategic Impact Lead migration from legacy technologies to modern React/Node.js ecosystem Establish development patterns for our expanding Node.js capabilities Showcase innovations to stakeholders in bi-monthly London sessions 🧠 The Developer We're Seeking Financial Services Mindset Curious nature More ❯

Full Stack Node.js/React Developer - FinTech Innovation Team 📍 London (Victoria) - Hybrid | UK Remote considered 🏦 Join a regulated FinTech transforming global payments 🚀 Shape the Future of Financial Services Join our new strategic team at a cutting-edge FinTech backed by Banking Circle's international payment rails. We're transforming how businesses access account-to-account payments, card issuing, and financial … services across UK, EU, and US markets. You'll rebuild critical client-facing applications from the ground up, pioneering our move to Node.js/React and API-first architecture. 🏦 About Us Regulated EMI in UK & EU, with US sponsor bank partnerships Visa & Mastercard member - card issuer Global reach with homogeneous services across three major markets Dual client base serving both … robust middleware solutions connecting frontend experiences to financial services Implement secure OIDC/OAuth flows for multi-tenant financial applications Strategic Impact Lead migration from legacy technologies to modern React/Node.js ecosystem Establish development patterns for our expanding Node.js capabilities Showcase innovations to stakeholders in bi-monthly London sessions 🧠 The Developer We're Seeking Financial Services Mindset Curious nature More ❯

Role:- Senior Frontend Engineer – 3D Visualization (React, WebGL, Python) Duration: 3 Months – Possible extension Location : UK- Remote Key Responsibilities: Develop a high-performance 3D brain visualization tool in the browser using WebGL and ThreeJS . Build and maintain React components to enable user interaction with different types of media (images, video, text). Integrate backend Python APIs and model outputs … teams to iterate based on feedback. Ensure smooth, low-latency performance across browsers and platforms. Essential Skills: Strong experience with WebGL , ThreeJS , or similar 3D graphics frameworks. Proficiency in ReactJS and modern frontend development (HTML/CSS/JavaScript or TypeScript). Solid understanding of Python , particularly in the context of APIs and backend integration. Ability to work independently and More ❯

Software Developer, C# .NET React JavaScript TypeScript. SaaS Cloud AI Unified Comms x 3 We’re hiring on behalf of a forward-thinking organisation delivering cutting-edge software across global projects. They’re seeking a driven Software Developer to join their agile, high-performance team and help shape the future of impactful digital solutions. What You’ll Be Doing as … a Software Developer Software Development Write clean, scalable, maintainable code using C# and .NET 5/6 Build modern frontend solutions using JavaScript , TypeScript , and React Contribute to architectural decisions and design secure software components Collaborate closely in Agile/Scrum teams to deliver reliable, user-centric software Carry out rigorous unit and integration testing Work with QA to validate … in C# , SQL , and Microsoft SQL Server Solid understanding of Git and experience in Agile environments Bonus: Familiarity with OWASP ASVS , secure development standards, and modern UI frameworks like React Why Apply Work on worldwide projects with real impact. Be part of a collaborative, agile team focused on innovation. Gain exposure to a broad tech stack and career progression opportunities. More ❯

mind: While focused on prototypes, keep an eye on future productisation and technical debt. What They're Looking For Full stack capability: Strong experience with front-end frameworks (e.g. React, Next.js, React Native) and back-end systems (e.g. Node.js, Python). AI integrations: Hands-on experience integrating AI tools and services (e.g. OpenAI, Anthropic, LangChain, Pinecone, speech/video APIs More ❯

clients. Collect and analyse feedback to drive improvements. You’ll Work With WebRTC UC clients AI speech-to-text & sentiment software SaaS platforms built on PHP (Laravel), Node.js and React/React Native Google Cloud Platform (Cloud Run, Cloud Functions, Cloud SQL etc.) GitLab CI/CD Requirements Essential: Experience in QA/test automation/technical support. Practical knowledge More ❯

Contract - Senior Frontend Engineer (React/TypeScript) – Build Beautiful Interfaces for Advanced AI Do you love crafting high-quality, intuitive user interfaces? Are you excited by the idea of working at the intersection of AI and frontend innovation? Looking for a role where you’ll own key parts of a modern product and work with the latest tech? Our client … experiences - this could be your next big move. Why This Role is Great In this role, you'll have the opportunity to: Design and build a modern SPA using React , TypeScript , and Vite , with a strong emphasis on performance, accessibility, and usability. Deliver responsive, accessible interfaces using utility-first CSS (e.g. Tailwind CSS ) and a component-led design system (e.g. … helping to level up team-wide frontend standards and best practices. About You This role would suit someone who: Has solid experience building and scaling single-page applications using React and TypeScript , ideally in production environments. Enjoys working with modern build tools and libraries such as Vite , pnpm , or similar. Has experience (or a strong interest) in real-time applications More ❯

development processes and workflows Required Qualifications, Capabilities And Skills Formal training or certification on JavaScript concepts and proficient applied experience Ability to write testable, clean JavaScript code Proficiency in React framework Familiarity with writing unit tests Understanding of REST APIs and GraphQL Ability to work in a dynamic, agile environment within a geographically distributed team Ability to focus on promptly … addressing customer needs Excellent written and verbal communication skills in English Preferred Qualifications, Capabilities And Skills Building applications using React Native in TypeScript or JavaScript Native application development across Android/iOS in Kotlin/Swift Comfortable working with projects partially or fully using TypeScript Using latest React features such as Suspense and Hooks End to end testing applications with More ❯

ll be working on critical middle and back-office systems that support trading and operations functions. Key Responsibilities Design, develop, and maintain full stack applications using C# backend and React frontend Build and enhance middle and back-office systems supporting fund operations Collaborate with business stakeholders including fund accounting, operations, and trading teams Develop scalable, high-performance solutions for financial … data processing Participate in code reviews and maintain high development standards Required Skills & Experience Strong proficiency in C# .NET (Core preferred) for backend development Solid experience with React and modern JavaScript frameworks Experience with SQL Server and database design Proven experience working on middle/back-office systems in financial services Understanding of fund operations workflows and processes Experience with More ❯

ll be working on critical middle and back-office systems that support trading and operations functions. Key Responsibilities Design, develop, and maintain full stack applications using C# backend and React frontend Build and enhance middle and back-office systems supporting fund operations Collaborate with business stakeholders including fund accounting, operations, and trading teams Develop scalable, high-performance solutions for financial … data processing Participate in code reviews and maintain high development standards Required Skills & Experience Strong proficiency in C# .NET (Core preferred) for backend development Solid experience with React and modern JavaScript frameworks Experience with SQL Server and database design Proven experience working on middle/back-office systems in financial services Understanding of fund operations workflows and processes Experience with More ❯

ll be working on critical middle and back-office systems that support trading and operations functions. Key Responsibilities Design, develop, and maintain full stack applications using C# backend and React frontend Build and enhance middle and back-office systems supporting fund operations Collaborate with business stakeholders including fund accounting, operations, and trading teams Develop scalable, high-performance solutions for financial … data processing Participate in code reviews and maintain high development standards Required Skills & Experience Strong proficiency in C# .NET (Core preferred) for backend development Solid experience with React and modern JavaScript frameworks Experience with SQL Server and database design Proven experience working on middle/back-office systems in financial services Understanding of fund operations workflows and processes Experience with More ❯

top talent through employee benefits, strategic reward and recognition, well-being, and much more. Our mobile development team is expanding, and we have an exciting opportunity for a Lead React Native Engineer . We are looking for someone who is passionate about creating high-quality mobile experiences and is comfortable balancing hands-on technical delivery and leadership with mentoring a … reviews, recommending improvements, and fostering consensus through clear communication and your strong technical skills to support your recommendations. Key Responsibilities Design, develop, and maintain high-quality mobile applications using React Native Collaborate with cross-functional teams, including Product, Design, and Backend Engineering, to ensure seamless integration of new features and improvements in our mobile applications using Typescript and React Native … high standard of code quality for mobile applications Stay informed on mobile development trends, tooling, and best practices Skills, Knowledge, and Expertise Extensive development experience building mobile applications in React Native, with experience in a technical lead role Experience developing large-scale business-critical SaaS applications In-depth knowledge of the React and React Native frameworks Excellent programming skills in More ❯

top talent through employee benefits, strategic reward and recognition, well-being, and much more. Our mobile development team is expanding, and we have an exciting opportunity for a Lead React Native Engineer . We are looking for someone who is passionate about creating high-quality mobile experiences and is comfortable balancing hands-on technical delivery and leadership with mentoring a … reviews, recommending improvements, and fostering consensus through clear communication and your strong technical skills to support your recommendations. Key Responsibilities Design, develop, and maintain high-quality mobile applications using React Native Collaborate with cross-functional teams, including Product, Design, and Backend Engineering, to ensure seamless integration of new features and improvements in our mobile applications using Typescript and React Native … high standard of code quality for mobile applications Stay informed on mobile development trends, tooling, and best practices Skills, Knowledge, and Expertise Extensive development experience building mobile applications in React Native, with experience in a technical lead role Experience developing large-scale business-critical SaaS applications In-depth knowledge of the React and React Native frameworks Excellent programming skills in More ❯

top talent through employee benefits, strategic reward and recognition, well-being, and much more. Our mobile development team is expanding, and we have an exciting opportunity for a Lead React Native Engineer . We are looking for someone who is passionate about creating high-quality mobile experiences and is comfortable balancing hands-on technical delivery and leadership with mentoring a … reviews, recommending improvements, and fostering consensus through clear communication and your strong technical skills to support your recommendations. Key Responsibilities Design, develop, and maintain high-quality mobile applications using React Native Collaborate with cross-functional teams, including Product, Design, and Backend Engineering, to ensure seamless integration of new features and improvements in our mobile applications using Typescript and React Native … high standard of code quality for mobile applications Stay informed on mobile development trends, tooling, and best practices Skills, Knowledge, and Expertise Extensive development experience building mobile applications in React Native, with experience in a technical lead role Experience developing large-scale business-critical SaaS applications In-depth knowledge of the React and React Native frameworks Excellent programming skills in More ❯

will be working with a manufacturing business to capture their live sensor data and generating real time reports from their IoT Device via web apps and dashboards built using React & Node. Required: React Node CSS/HTML Javascript Typescript Beneficial: IoT Experience TDD Raspberry PI If you are interested in the position please send an updated copy of your CV More ❯

Software Engineer – Python/FastAPI/React/Functional programming/Typescript Location: London, UK (Hybrid) Type: Full-time Level: Mid to Senior Salary: £70,000 to £100,000 About the Role: This startup is building a cutting-edge platform to transform how engineers design physical products. Instead of creating one solution at a time, this system enables users to … just building software, but helping change how things are designed and built. Opportunities: Frontend or Backend Tech Stack within the engineering environment: Backend: Python, FastAPI, Pydantic, PostgreSQL, Docker Frontend: React, TypeScript, Vite Infrastructure: GitHub Actions, GCP, Kubernetes (optional) Paradigms: Functional programming, async APIs, event-driven architecture Responsibilities Build and maintain backend services using FastAPI and Python for geometry, simulation, and … data workflows Develop responsive, performant frontends using React and TypeScript Work closely with domain experts (engineers, designers) to translate complex physical problems into usable software features Follow functional programming practices to write testable, composable code Own features from idea to implementation to deployment Contribute to architectural decisions in a fast-moving, early-stage product Requirements Bachelor’s degree in Computer More ❯

Software Engineer – Python/FastAPI/React/Functional programming/Typescript Location: London, UK (Hybrid) Type: Full-time Level: Mid to Senior Salary: £70,000 to £100,000 About the Role: This startup is building a cutting-edge platform to transform how engineers design physical products. Instead of creating one solution at a time, this system enables users to … just building software, but helping change how things are designed and built. Opportunities: Frontend or Backend Tech Stack within the engineering environment: Backend: Python, FastAPI, Pydantic, PostgreSQL, Docker Frontend: React, TypeScript, Vite Infrastructure: GitHub Actions, GCP, Kubernetes (optional) Paradigms: Functional programming, async APIs, event-driven architecture Responsibilities Build and maintain backend services using FastAPI and Python for geometry, simulation, and … data workflows Develop responsive, performant frontends using React and TypeScript Work closely with domain experts (engineers, designers) to translate complex physical problems into usable software features Follow functional programming practices to write testable, composable code Own features from idea to implementation to deployment Contribute to architectural decisions in a fast-moving, early-stage product Requirements Bachelor’s degree in Computer More ❯

Software Engineer – Python/FastAPI/React/Functional programming/Typescript Location: London, UK (Hybrid) Type: Full-time Level: Mid to Senior Salary: £70,000 to £100,000 About the Role: This startup is building a cutting-edge platform to transform how engineers design physical products. Instead of creating one solution at a time, this system enables users to … just building software, but helping change how things are designed and built. Opportunities: Frontend or Backend Tech Stack within the engineering environment: Backend: Python, FastAPI, Pydantic, PostgreSQL, Docker Frontend: React, TypeScript, Vite Infrastructure: GitHub Actions, GCP, Kubernetes (optional) Paradigms: Functional programming, async APIs, event-driven architecture Responsibilities Build and maintain backend services using FastAPI and Python for geometry, simulation, and … data workflows Develop responsive, performant frontends using React and TypeScript Work closely with domain experts (engineers, designers) to translate complex physical problems into usable software features Follow functional programming practices to write testable, composable code Own features from idea to implementation to deployment Contribute to architectural decisions in a fast-moving, early-stage product Requirements Bachelor’s degree in Computer More ❯

join a forward-thinking company producing award-winning software used by leading businesses across the globe. The successful Senior Frond Developer will need to have extensive commercial experience using ReactJS and should be comfortable working to their own initiative but also happy to mentor and offer guidance to the more junior members of an already successful team. This is predominantly … functional system. Develop software verification plans and follow quality assurance procedures. Document and maintain software functionality. Mentor junior developers Follow a specific build and deployment process. Skills required: Extensive ReactJS experience Be familiar with Agile development practices, including Continuous Integration and 5+ years' experience in enterprise level front-end web development: Solid understanding of semantic mark-up, including HTML5, CSS3 … comfortable with CSS animations and flexbox). Extensive ReactJS experience JavaScript, TypeScript Ability to mentor junior staff Code reviews and technical guidance. Degree level education in an engineering/software in beneficial Good understanding of asynchronous request handling, partial page updates. If you feel you have the skills and experience required for this opportunity, please contact Oliver Wilson on or More ❯

Principal JavaScript Engineer (TypeScript/React/Node.js) £150,000–£170,000 + Equity | Hybrid – 3 days in London We’re helping a VC-backed SaaS scaleup reinvent how organisations manage and approve spend, from software requests to supplier onboarding, and they’re gearing up for serious growth. With enterprise clients already on board and revenue climbing, they’re looking … day — thanks to a rock-solid CI/CD setup Collaborate closely with product, design, and leadership to shape the roadmap Tech stack you’ll be working with : TypeScript, React, Node.js, AWS Serverless (Lambda, DynamoDB, EventBridge) What you’ll be doing: This isn’t just about writing code, it’s about owning problems end-to-end and influencing every part … observable as we scale to hundreds of enterprise customers. Collaborate closely with product, design, and leadership to set roadmap priorities and define technical strategy. Work across the stack — from React frontends to AWS serverless backends — and own your projects from infrastructure to styling. Deploy continuously (multiple times per day) using their robust CI/CD pipelines. Mentor other engineers and More ❯

Principal JavaScript Engineer (TypeScript/React/Node.js) £150,000–£170,000 + Equity | Hybrid – 3 days in London We’re helping a VC-backed SaaS scaleup reinvent how organisations manage and approve spend, from software requests to supplier onboarding, and they’re gearing up for serious growth. With enterprise clients already on board and revenue climbing, they’re looking … day — thanks to a rock-solid CI/CD setup Collaborate closely with product, design, and leadership to shape the roadmap Tech stack you’ll be working with : TypeScript, React, Node.js, AWS Serverless (Lambda, DynamoDB, EventBridge) What you’ll be doing: This isn’t just about writing code, it’s about owning problems end-to-end and influencing every part … observable as we scale to hundreds of enterprise customers. Collaborate closely with product, design, and leadership to set roadmap priorities and define technical strategy. Work across the stack — from React frontends to AWS serverless backends — and own your projects from infrastructure to styling. Deploy continuously (multiple times per day) using their robust CI/CD pipelines. Mentor other engineers and More ❯