101 to 125 of 2,457 React Jobs in London

.NET Developer, C# - Financial Consultancy - London (Tech stack: .NET Developer, .NET 9, ASP.NET, C#, React, Angular 19, Microservices, Azure, WPF, MVVM, Prism, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer) Established in the early 1970s, our client delivers cutting edge I.T solutions to banks. With over 70,000 employees in over 50 countries and strong partnerships with some … with experience in either web application development (.NET Core/ASP.NET MVC, C#) or windows/desktop development (C#.NET). My client can provide training in: .NET 9, JavaScript, React, Angular 19, Microservices, MongoDB, Vue.js, TypeScript, Azure, AWS, WPF, MVVM, Prism, continuous integration, dependency injection, RESTful, Web API 2, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and MongoDB. More ❯

in geospatial applications. You will be involved in designing and implementing interactive web interfaces with dynamic maps, spatial queries, and integrations with geospatial APIs and services. Tech Stack: Frontend: React, TypeScript, HTML5, CSS3 Backend: Node.js, Express.js DevOps & Infrastructure: Modern CI/CD pipelines, microservices, and cloud-based environments (e.g. AWS or Azure) Geospatial stack (preferred): Leaflet, Mapbox, OpenLayers, PostGIS, GeoJSON … WMS/WFS Requirements: Extensive experience in JavaScript development, particularly with Node.js and React Proven track record delivering complex, high-quality fullstack web applications Experience building and maintaining RESTful APIs Solid understanding of asynchronous programming, microservices, and containerized environments (e.g. Docker) Experience working with or integrating web map libraries (Leaflet, Mapbox, OpenLayers) Familiarity with geospatial data formats and coordinate reference More ❯

.NET Developer (Tech stack: .NET Developer, .NET 9, C#, ASP.NET, C#, React, Angular 19, Microservices, Vue.js, TypeScript, Azure, Web API 2, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer) We have several fantastic new roles for .NET Developer to join an ambitious Fintech start-up. This is your chance to work with the sharpest minds in private wealth … client is looking for passionate .NET Developer with experience in .NET, .NET Core/ASP.NET MVC, C# and Azure SQL. Our client will provide training in: .NET 9, JavaScript, React, Angular 19, Microservices, Vue.js, TypeScript, Azure, AWS, Web API 2, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and MongoDB. This is your opportunity to be part of a More ❯

.NET Developer (Tech stack: .NET Developer, .NET 9, C#, ASP.NET, C#, React, Angular 19, Microservices, Vue.js, TypeScript, Azure, Web API 2, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer) We have several fantastic new roles for .NET Developer to join an ambitious Fintech start-up. This is your chance to work with the sharpest minds in private wealth … client is looking for passionate .NET Developer with experience in .NET, .NET Core/ASP.NET MVC, C# and Azure SQL. Our client will provide training in: .NET 9, JavaScript, React, Angular 19, Microservices, Vue.js, TypeScript, Azure, AWS, Web API 2, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and MongoDB. This is your opportunity to be part of a More ❯

the best practices. Our Technology Stack Backend – Java REST APIs, Open Liberty Application Server, Apache Solr Search platform, RDBMS (Postgres, SqlServer, DB2) Frontend App Framework - JavaScript/TypeScript/React CI/CD - GitHub/CircleCI Cloud – AWS Requirements Bachelor's degree with a minimum of 2:1 Computer Science, Information Technology, or a related field. Senior level experienced developer. … Desirable Experience with text search engines like Elastic, Solr, and Lucene. Using Gradle for project automation and dependency management. Basic understanding of front-end technologies (e.g., JavaScript, TypeScript, and React) to facilitate smooth integration with backend services. #J-18808-Ljbffr More ❯

is highly desirable, as it is our primary front-end framework; however, we are also open to candidates who have experience with other modern front-end technologies such as React or Angular. Familiarity with cloud technologies is essential, and while we primarily use Microsoft Azure, we welcome candidates with experience in AWS or Google Cloud Platform (GCP). Expert knowledge … of C# and .NET framework Hands-on experience with Blazor for front-end development (or React, Angular, or similar) Strong understanding of cloud platforms including Azure, AWS or GCP Solid experience in building RESTful APIs and microservices Proficient in using version control systems such as Git Good understanding of secure software development practices Strong problem-solving and analytical skills Excellent More ❯

is highly desirable, as it is our primary front-end framework; however, we are also open to candidates who have experience with other modern front-end technologies such as React or Angular. Familiarity with cloud technologies is essential, and while we primarily use Microsoft Azure, we welcome candidates with experience in AWS or Google Cloud Platform (GCP). Expert knowledge … of C# and .NET framework Hands-on experience with Blazor for front-end development (or React, Angular, or similar) Strong understanding of cloud platforms including Azure, AWS or GCP Solid experience in building RESTful APIs and microservices Proficient in using version control systems such as Git Good understanding of secure software development practices Strong problem-solving and analytical skills Excellent More ❯

Qualifications Knowledge and Skills: Strong proficiency in JavaScript (ES6+), with a deep understanding of core language concepts and best practices. Expertise in modern frontend frameworks with advanced experience in React, Next.js, and Angular. Deep understanding of TypeScript for building robust and maintainable applications. Solid grasp of responsive and mobile-first design principles; experience with CSS3, HTML5 and modern styling solutions. … is a plus. Education and Training Required: Bachelor’s Preferred or relevant years of experience Minimum Experience: 5+ years of professional experience in frontend development, with strong expertise in React and TypeScript. Additional Information Company Disclaimer: This job description does not represent an all-exhaustive list of all functions and the employee may be required to perform additional duties as More ❯

You’ll collaborate with product managers, designers, and senior engineers to understand project goals and deliver high-quality solutions. You’ll work with technologies like Node.js, JavaScript, TypeScript, and React, and play a key role in leveraging AI-powered development tools (such as GitHub Copilot, Cursor, Claude Code, or Gemini) to improve efficiency and code quality. We’re looking for … services and APIs with Node.js and TypeScript. Integrate third-party services and manage data pipelines. Ensure performance, reliability, and scalability of applications. Frontend Development Build responsive user interfaces with React and TypeScript. Ensure cross-browser compatibility and seamless API integration. Full-Stack Collaboration Work cross-functionally to develop and ship new features. Own tasks from conception to production deployment. Cloud More ❯

You’ll collaborate with product managers, designers, and senior engineers to understand project goals and deliver high-quality solutions. You’ll work with technologies like Node.js, JavaScript, TypeScript, and React, and play a key role in leveraging AI-powered development tools (such as GitHub Copilot, Cursor, Claude Code, or Gemini) to improve efficiency and code quality. We’re looking for … services and APIs with Node.js and TypeScript. Integrate third-party services and manage data pipelines. Ensure performance, reliability, and scalability of applications. Frontend Development Build responsive user interfaces with React and TypeScript. Ensure cross-browser compatibility and seamless API integration. Full-Stack Collaboration Work cross-functionally to develop and ship new features. Own tasks from conception to production deployment. Cloud More ❯

impacts users and learn to contribute to product discussions with growing technical insight. Responsibilities Feature development: Build features across our microservices architecture, working with Go-based backend services and React/Next.js frontend applications under guidance from senior engineers Code contribution: Write clean, tested code following established patterns and contribute to our 40+ microservice ecosystem with proper code reviews and … Inter-service communication GraphQL - Client-facing API gateway MySQL, PostgreSQL, Redis - Data storage and caching Google Cloud Pub/Sub - Event-driven architecture Frontend & Mobile TypeScript - Primary frontend language React & Next.js - Web applications React Native & Expo - Mobile applications CSS, CSS-in-JS - Styling GraphQL Codegen - Type-safe API integration Artificial Intelligence OpenAI & Gemini - We use OpenAI models to ease our More ❯

engineers who can contribute to product discussions with technical insight. Responsibilities Technical leadership : Lead the development of complex features across our microservices architecture, from Go-based backend services to React/Next.js frontend applications System design : Architect and implement scalable solutions within our 40+ microservice ecosystem, ensuring proper service boundaries and communication patterns Cross-stack development : Work across our full … Inter-service communication GraphQL - Client-facing API gateway MySQL, PostgreSQL, Redis - Data storage and caching Google Cloud Pub/Sub - Event-driven architecture Frontend & Mobile TypeScript - Primary frontend language React & Next.js - Web applications React Native & Expo - Mobile applications CSS, CSS-in-JS - Styling GraphQL Codegen - Type-safe API integration Artificial Intelligence OpenAI & Gemini - We use OpenAI models to ease our More ❯

Provide technical guidance and mentorship to other engineers, ensuring code quality through reviews and best practices. Design and implement responsive, user-friendly web interfaces using modern JavaScript frameworks (Next.js, React). Collaborate with UX/UI designers to turn designs into functional, intuitive interfaces. About You: Expertise in JavaScript frameworks like React, Vue.js, or Angular, with proficiency in HTML, CSS More ❯

impact of their work on the life sciences industry, and this fuels their passion. The core skills we’d like to see: Frontend Testing Strategies and Paradigms Typescript with React We are flexible and look for the right folks. You are not expected to know everything, but here are some other of our core technologies: Python for our application code … you do by understanding what makes sense for our users and engaging with them with integrity. What it takes: Production experience across the core technology stack of Python and React, ideally working on data-intensive applications, microservices, event-driven architecture, SaaS or edge services. Automation-focused with a DevOps mindset in setting up pipelines for managing our deployments and quality More ❯

consultancy environment, we invite you to apply. What You’ll Do: Provide Technical Leadership: Guide the design and build of advanced, scalable .NET/C# backend services and sophisticated React frontend applications. You’ll set technical direction, contribute to overall architecture, and ensure the highest standards of code quality. Resolve Complex Challenges: Tackle intricate full-stack technical and performance challenges … level proficiency in .NET and C# (including .NET Core/5+), ASP.NET Core, RESTful API design, and a solid understanding of microservices architecture. Frontend Proficiency: Expert-level proficiency in React, including core libraries, state management, and modern frontend practices. Database Acumen: Solid understanding of relational databases (e.g., SQL Server, PostgreSQL) and ORM frameworks (e.g., Entity Framework Core). Cloud Experience More ❯

Communicate progress to stakeholders and collaborate across departments. Requirements At least 5+ years of professional experience as a Full Stack Developer. Deep expertise in modern frontend frameworks (Astro, SolidJS, React, Next.js). Demonstrable previous work on customer-facing websites with a focus on user experience . Accustomed to reusable components and design systems. Strong understanding of SSR, SSG, SPA, or … of implementing proactive solutions. Excellent interpersonal and communication skills with employees at all levels and good written English. Technical skills: Must Frontend: HTML, CSS JavaScript (ES2020+), TypeScript SolidJS or React Unit-testing (Vitest/Jest/similar) End-to-end testing (Cypress/Playwright/similar) Backend : RESTful APIs Node.js SQL and/or NoSQL databases Unit-testing Integration testing More ❯

monoliths to microservices, upskilling colleagues and customers, always finding themselves learning from others, while constantly striving to be nice humans. Our teams have used Java, Ruby, Python, ES6 with React, as well as C# with .NET Core. We don’t limit ourselves as a company and we expect all our Engineers to be keen on learning new technologies. Automation is … development Component-based design techniques such as using pattern libraries, styled-components, CSS-in-JS, BEM, and/or SUIT CSS Building and maintaining CI/CD pipelines The React ecosystem including a test-driven approach Infrastructure as code technology like Terraform and Cloud Formation Familiarity with architectural and design patterns Use of architectural decision records Support in applying If More ❯

skills and a passion for building efficient, scalable systems. Excellent communication skills and the ability to work collaboratively in a team environment. Exposure to front-end technologies such as React or Angular. Knowledge of containerization and orchestration tools like Docker and Kubernetes. Experience in financial technology or related industries. What We Offer A dynamic and innovative working environment. Opportunities for More ❯

experience using both compiled languages (Rust, OCaml, Golang, Java, C#) or dynamic languages (JavaScript, Python, Ruby). Experience building web applications or desktop application technologies such as Electron, Tauri, React, or Vue.js. Familiarity with CI/CD principles and technologies, including experience with GitHub Actions or similar. Experience working with relational and NoSQL databases such as Postgres, Redis, Neo4j, Milvus More ❯

technologies. Create and manage backend services and ensure seamless data integration. Front-End Development: Develop user-friendly, responsive web interfaces using HTML, CSS, JavaScript, and front-end frameworks (e.g., React, Vue.js, Angular). Ensure cross-browser compatibility and mobile responsiveness. Database Management: Design and maintain databases (MySQL, PostgreSQL, or equivalent). Optimize database queries and perform routine maintenance tasks. API More ❯

finance with small businesses. The role: Work on customer facing & internal products: you work will have huge impact and visibility, both internally and externally! Lead front-end development using React, TypeScript, Next.js, Tailwind CSS, and Material UI. Be empowered to have autonomy: you will have a say in our direction, ways of working and tooling, making it clear the impact More ❯

problem-solving and debugging abilities Excellent communication and teamwork skills A proactive, ownership-driven mindset and willingness to tackle novel problems Nice to Have Experience with frontend frameworks like React Familiarity with Kubernetes or other orchestration systems Background working with high-scale systems or event-driven architecture Exposure to agile development methodologies Why Join Us? We offer a collaborative and More ❯

the ability to learn others as needed: Distributed or large-scale systems MySQL/SQL database design, query optimization, and administration Web development using HTML, CSS, JavaScript, Vue/React Apache web server and related modules Cloud platforms such as AWS, Google Cloud, Azure CI/CD pipeline setup, testing, and administration Networking and firewall configuration Natural language processing Responsibilities More ❯

Required Technical Skills Full-Stack and Backend developers with proficiency and experience in Python Full-Stack and Frontend developers with proficiency and experience in JavaScript/TypeScript Experience with React and next.js or similar front-end frameworks Familiarity with AWS and cloud-native development Experience with automated testing and writing testable code Understanding of CI/CD pipelines, version control More ❯

a solid understanding of Object-Oriented Design , and a passion for learning and embracing new tech. Languages : 🌳 Ruby-on-Rails, Java, Python, C#, PHP 🌳 VueJs, Typescript/Angular/React Cloud : 🌳 Amazon Web Services (AWS) Databases : 🌳 PostgreSQL, DynamoDB Additional Tools & Frameworks : 🌳 GraphQL 🌳 REST APIs 🌳 Software Design Patterns – TDD, DDD 🌳 Agile methodologies: Scrum and Kanban Key Responsibilities : Full-Stack Development : Design More ❯