26 to 50 of 53 React Jobs in Central London

/week in office Duration - Initially 6 months Rate - £550-£650/day Inside IR35 via Umbrella Skills and Experience Required TypeScript, Next.js or React AWS and Terraform Experience providing feedback to engineering teams via code review Exposure to a wide range of languages, frameworks, and cloud technologies Core Competencies ...

getting started. What you'll be doing Build seamless, scalable systems: Design and develop reliable software across our TypeScript monorepo (SST, Node.js, Vite/React). Deliver cross‐functional impact: Work closely with clinicians, designers, and product managers to build intuitive user experiences. Own the full stack: From frontend interfaces ...

APIs and ensure seamless data flow between frontend and backend systems. Build intuitive, performant, and responsive user interfaces using modern frontend frameworks such as React or comparable web component frameworks. Work closely with UX/UI designers to translate designs into functional applications. Ensure code quality, maintainability, and scalability through ...

future architecture of a rapidly scaling platform. What We're Looking For MUST FRONT END FOCUS WITH UI/UX Strong commercial experience with React, Next.js, TypeScript, HTML & CSS Proven ability to build high-quality, responsive user interfaces Experience translating Figma designs into production-ready code Strong understanding of frontend ...

them in their key skills, accountabilities and development areas. Desirable Skills: 5+ years experience in working with the .NET framework, particularly with ASP.NET Core, React/React Native, C#, Web API Strong experience in working with Azure (preferably certified) including App Services, Azure Function, Service Bus Experience leading and mentoring … driven development tools such as Claude Experience developing REST API-driven mobile first web applications Experience of frontend application development, with a focus on React.js, Next.js and TypeScript Jira, Bitbucket, Git Flow, Confluence, Azure Devops, Azure App Centre, Service Bus Explorer, SSMS and agile software development process/practices ...

Build full-stack applications and internal engineering tools, including backend services, APIs, automation layers, and user-facing interfaces using technologies such as Python, Java, React, or Angular. Engineer scalable solutions that support central operational use cases such as self-service tooling, operational dashboards, alert enrichment, incident reduction, service recovery … development experience, with hands-on expertise in Python and Java for backend or service-layer engineering. Strong working knowledge of front-end development using React or Angular, including building interfaces for operational or engineering use cases. Proven experience designing and deploying end-to-end solutions, from application development through production ...

field, or equivalent professional experience. Even better... AI-related experience (experience with product development for AI agents a plus). Some coding experience with React, Typescript, and Go. MBA or equivalent professional experience (while this is a product management role, you will have the opportunity to lean into broader business ...

Product roadmap Managing a team consisting of a range of skillsets and experience Full stack development, across Python/FastAPI services and React/TypeScript front ends Continuously improving the team's processes for iterative development, including embedding automated testing and CI quality gates into a fast-moving AI product … objectives and assisting with tailored development plans Our engineering environment includes technologies such as Python (FastAPI), LangChain/LangGraph for multi-agent LLM orchestration, React/TypeScript, PostgreSQL, MongoDB, Redis, Azure (App Service, Container Registry, Blob Storage), Docker, GitHub Actions, and modern CI/CD pipelines. About You: You will ...

play a key role in building MCP integrations, agent-to-agent connectivity and robust API services, while also developing responsive, accessible interfaces in React and TypeScript. What you'll be doing Own the application and integration layer of AI products end to end, covering APIs, integrations, service boundaries and frontend … APIs using REST and/or GraphQL, including authentication, authorisation, versioning and streaming interfaces such as SSE or WebSockets. Build production frontend applications using React, TypeScript and JavaScript. Work closely with UX and product teams to turn designs into accessible, responsive and intuitive interfaces. Develop AI-specific user experiences including ...

solve across a dual-stack C# and TypeScript backend, being intentional about choosing the right tool for the job. Implement microfrontend web applications in React and TypeScript, with an eye for component design and the UX implications of what you build. Take end-to-end ownership of features from early … Technology Stack We believe in using the right tool for the job. Our current stack includes: Backend: TypeScript, Node.js, C#, .NET Frontend: TypeScript, React Cloud & Infrastructure: AWS (ECS, Lambda, SQS, DocumentDB, DynamoDB), Terraform, SST (Infrastructure as Code) Architecture: Microservices, Microfrontends, Event-driven architecture What You Need to Be Successful ...

experienced Senior Frontend Developer to join their team in London on a hybrid basis. The Senior Frontend Developer will bring expertise in React and Next.js and will have a passion for building scalable user interfaces. We are looking for a hands on developer who will contribute towards/own frontend … architecture designs and quality code standards. You will design, develop and maintain high quality frontend features using React and Next.js. React/Next.js/JavaScript/TypeScript/App Router/Server/Rendering/Turbopack/Architecture Experience: Strong professional experience building applications with React and Next.js (ideally React ...

Senior Front End Engineer (React/TypeScript) London Hybrid (2-3 days per week) Build the platform that powers client onboarding at scale We're looking for a Senior Front End Engineer to help shape and build a modern onboarding and account management platform used by businesses across multiple customer … deeply about customer outcomes, software quality, and building the right solutions, not just shipping features. The Opportunity You'll be working on a modern React-based single-page application, building complex onboarding journeys, integrating with external services, and helping define the future direction of the platform's frontend architecture. ...

Infrastructure as Code, CI/CD Use of Middleware and RESTful or GraphQL APIs Microservices and MACH Architectures. HTML, CSS, Javascript frameworks such as React, or Mobile technologies such as SwiftUI, Kotlin, Flutter or React‐native CMS, DXPs and common MarTech SaaS products integration Atlassian, Azure DevOps, GitLab or similar ...

Software Engineer/Full Stack Developer (Node TypeScript React Azure) Bristol/WFH to £95k Are you a senior Software Engineer looking for a genuine Greenfield opportunity where you'll shape architecture from day one? You could be joining a growing financial services business as they build a brand … your work. As a Software Engineer, you'll help design and build a modern cloud native platform from the ground up using Node.js, TypeScript, React and Microsoft Azure. Working across the full technology stack, you'll take ownership of backend services, APIs, integrations and cloud infrastructure, whilst also contributing ...

SharePoint Online Designing scalable, secure, and high-performing SharePoint solutions Optimising platform cost, performance, and usability Designing and developing solutions using SPFx, React, TypeScript, JavaScript, Microsoft Graph APIs, and REST APIs Designing and maintaining enterprise on-premises and cloud SharePoint platforms Administering SharePoint SE (on-prem) and SharePoint Online tenants … experience administering and developing solutions for SharePoint Subscription Edition (SE) and SharePoint Online. Proven expertise in SharePoint Framework (SPFx) development Proficiency in TypeScript, JavaScript, React, HTML5, CSS3, and modern front-end development practices Strong experience integrating SharePoint solutions using RESTful APIs and Microsoft Graph Solid experience with C# and .NET ...

doing: Develop and integrate APIs to support modern application experiences Build and automate workflows using Azure Logic Apps Create clean front-end features using React, Angular or Vue.js Deliver back-end services using .NET, Node.js, or Python Work with JSON and JavaScript to build and consume data-driven interfaces Script … bring: Proven experience in API development and building integration layers Strong Azure capability, including Azure Logic Apps Front-end development experience with React/Angular/Vue.js Back-end development experience with .NET, Node.js or Python Working knowledge of C# and JavaScript, with confidence using JSON Ability to develop with ...

Senior Full Stack Lead Engineer ReactJS, TypeScript, JavaScript, C#/.NET Banking London This is a new and exclusive opportunity for a Senior Full Stack Lead Engineer/software developer with expertise across ReactJS, TypeScript, JavaScript, C#/.NET to join this investment Banking client as they expand their full … stack software developer team in London city. Role details Title: Senior Full Stack Lead Engineer Technical stack: ReactJS, TypeScript, JavaScript, C#/.NET Employer: investment Banking Location: London City and home working hybrid 50/50% Permanent role, salary £90,000- £130,000 plus bonus This is a new opportunity ...

designing and building modern, intuitive and high-performance user interfaces that directly support our client's Fixed Income & Currencies (FIC) sales organisation. Working with React, JavaScript, TypeScript, and modern web technologies, the UI Engineer will help create data-driven applications, working across core application components and platform capabilities, contributing … technical problem solving. Support the design and implementation of distributed, service-oriented architecture, ensuring reliability and maintainability. Create intuitive and responsive user interfaces using React, improving how salespeople access insights and manage client workflows. Contribute to the development of data-driven application features that enhance sales workflows and client interaction. ...

Agent. We are nimble, innovative and move quickly, using the latest technologies available to us within the group. Our tech stack includes Python and React/Next.js, makes extensive use of LLMs via API, and is deployed on OSS2 Kubernetes within Marsh Tech. Being forward-deployed means we build … role. Your role is to lead on the engineering development and maintenance of the AI technology we build, spanning the backend (Python), front-end (React and Next.js) and deployment (OSS2/Kubernetes). You will also get into the AI Agent plumbing and agent resilience. AI Agent quality and trust ...

some of the key components to the position: Build and maintain customer-facing features across the entire stack using Java/Spring Boot and React Design, develop, and maintain REST and GraphQL APIs to ensure seamless data flow Develop efficient data models and queries using MySQL and DynamoDB Write clean … team? Experience developing applications in Java and building services with Spring Boot or similar backend frameworks Experience building modern web applications using React and strong knowledge of JavaScript or TypeScript Understanding of RESTful APIs and backend design principles, with exposure to GraphQL as a plus Experience working with relational databases ...

/KYB across corporate, fund, intermediaries and sub-accounts. You will be part of a team building a single page application that runs on React 18, TypeScript (strict), TanStack Query/Form/Router, Tailwind + a Radix/shadcn component system, Vitest + RTL + MSW. You make … sounds the alarm if we are attempting to build the wrong things. Key Responsibilities Design and build new features in a form-heavy, React single page application Thoroughly test everything you build to prove your software works Make architectural calls on your domain, record down, present and defend them ...

html Integration of Fragments ...these fragments share overlapping content related to the required experience in languages and frameworks including JavaScript, React, TypeScript, Python, and GoLang. This overlap allows us to piece them together in the correct order. After combining the overlapping parts, we get: "Be a part of London … opportunity... In terms of the tech itself, the team is looking for an engineer who has experience in the following languages and frameworks: JavaScript, React, TypeScript, Python, and GoLang. In addition, they'll also be looking for those with hands-on use in Neo4j, GraphQL, AWS, and Kubernetes. Demonstrating..." ``` #J ...

Lead Software Engineer/Deep Tech/London (On-site) | up to £150k + equity The company A London deep tech company building the software backbone for the autonomous age. Their platform lets operators orchestrate ...

billion. For more information on how we process your personal data, please refer to HCLTech’ s Candidate Data Privacy Notice. Job Description: UI Developer (React, TypeScript and Low-Latency) Role Overview- We are seeking a highly skilled UI Developer with strong expertise in building time-critical, high-availability, and high … across the full UI development lifecycle, including design, development, testing, and deployment. Technical Skills & Expertise- Frontend Technologies: Expert-level proficiency in HTML, CSS, JavaScript, React, and TypeScript Real-Time Communication: Strong understanding of WebSockets, Server-Sent Events (SSE), and REST APIs State Management & Programming: Solid experience with state management libraries ...

/no code Palantir Foundry tooling, or Python and PySpark code repos - to building user-facing front-end applications and widgets in TypeScript or REACT Client Advisory & Translation: Sit directly alongside clients, distinguish their goals and requirements and translate complex technical language into stakeholder appropriate communication AI Integration: Actively embed … decompose complex use cases and architect solutions than rote memorising of coding syntax Fluency in core languages (Python, SQL, TypeScript and/or REACT) and the capability to pick up others quickly. You should understand data engineering principles, ETL pipelines, and application development Familiarity with Palantir (Foundry, Gotham, or similar ...