1,876 to 1,900 of 2,346 Permanent React Jobs

Principal Product Engineer

Hiring Organisation
Zapp
Location
London, UK
Employment Type
Full-time
much as CV.Even better if you knowNestJS. Our backend is a NestJS service, and you'd feel at home when features need backend work. React Native. Our apps run on React Native and Expo. You'll touch them when features cross stack boundaries. GraphQL Federation. We run a federated gateway ...

Frontend Software Engineer

Location
Greater London, England, United Kingdom
design, implement, deliver, and maintain an international top-class product, ensuring quality, maintainability, and sustainability. The Tech Stack We have created a single-page React application localized into multiple languages with TypeScript, RTK Query, MUI, and react-router. Developers typically run the SPA locally with Vite or Webpack DevServer (including … Candidate Strong experience in modern frontend web development. Proven production experience with JavaScript, TypeScript, DOM manipulation, HTML, and CSS/MUI. Deep understanding of React.js, its core principles (state, props, context, hooks), and modern architectural patterns. Experience with state management solutions (e.g., Redux/RTK Query, React Context ...

Javascript .net Fullstack Web Application Developer

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
will focus on a third-generation .NET web application suite, although legacy solutions also comprise of ASP.NET WebForms. All new development is built using React JS for the client side backed by WebAPI (C#) REST Endpoints. For managing application state, they use Redux and Immutable JS. Existing features which … active maintenance use the Backbone Marionette framework, but due to the impressive performance and productivity benefits of React, we have chosen to gradually phase out these older frameworks. We use open source JavaScript libraries extensively, most notably Lodash, Plotly Charts and React Virtualized. Postman covers API level testing. Full stack ...

Principal Developer, Greenfield Digital Banking, £150,000+

Location
Greater London, England, United Kingdom
lead. Ownership/Accountability: Have been responsible for the end to end delivery of technical products. The Key technologies: Java, Spring Boot, Azure, Kafka, React/Typescript, React Native, (Using AI Tools is a big Plus). Experience with API's, Microservices, Event Driven Architecture. (Greenfield Next Generation Solutions ...

Principal Developer, Greenfield Digital Banking, £150,000+

Hiring Organisation
Harvey Nash
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£150,000 per annum
lead. Ownership/Accountability: Have been responsible for the end to end delivery of technical products. The Key technologies: Java, Spring Boot, Azure, Kafka, React/Typescript, React Native, (Using AI Tools is a big Plus). Experience with API's, Microservices, Event Driven Architecture. (Greenfield Next Generation Solutions ...

Lead CRO Developer

Location
Greater London, England, United Kingdom
functionality. Develop experiments within Optimizely and other enterprise testing platforms including VWO, AB Tasty, Convert, Monetate and similar tools. Build experiments within modern React and Next.js environments, including single-page applications and dynamically rendered experiences. Handle technically complex tests involving DOM manipulation, application state, targeting, customer journeys and dynamic content. … Experimentation is highly valuable. Experimentation development: Extensive experience personally building and shipping A/B and multivariate tests in live ecommerce or enterprise environments. React/Next.js: Strong experience developing and debugging experiments on React and Next.js applications, including SPAs. QA & debugging: Excellent browser developer-tools skills, troubleshooting ability ...

Staff Software Engineer, Frontend

Location
Greater London, England, United Kingdom
service platform enabling businesses, fintechs and banks to build digital asset treasury, payment and exchange use-cases. What you’ll do Modern React expertise: You have solid experience building responsive web applications using ReactJS and TypeScript . You are comfortable with hooks, context, and state management. Form handling: You have … Hands-on experience working on large-scale distributed systems Familiarity with event-driven micro-services, Kubernetes, and cloud-based infrastructure Extensive experience working with React Familiarity with gRPC and protocol buffers Ability to work in a fast-paced start-up environment and be a core contributor to the success ...

Frontend Developer

Location
Liverpool, England, United Kingdom
Hybrid (3 days in office) ** Salary: £45,000–£55,000 depending on experience What You’ll Do: Build and maintain responsive web applications using React, Next.js and TypeScript Work closely with designers and backend engineers to deliver high-quality, user-focused features Contribute to shared component libraries and help improve … learn from more experienced team members Share ideas, ask questions and contribute to how we build and deliver software Our Tech Stack: Frontend: React, Next.js, TypeScript Infrastructure: Nginx, Docker, Azure Monitoring and Analytics: Sentry, PostHog Tooling: Git, CI/CD pipelines, Agile methodologies If you’re interested in learning React ...

Staff React Full Stack Engineer

Location
United Kingdom
Staff Full Stack (TypeScript/React) Engineer Could you be our next Staff Full Stack (TypeScript/React) Engineer? Reapit is the original end-to-end business technology provider for estate agencies of all sizes. We’ve been helping sales and lettings agents build relationships and grow their businesses … expected to own outcomes end-to-end across the stack. Architecting, building and shipping complex, high-performance Full Stack TypeScript applications across React front-ends and with some BFF Node back-end work, setting the technical bar for the squad and owning delivery of substantive feature sets end-to-end. ...

Senior Software Engineer (Front End)

Location
United Kingdom
passion for building fast, scalable, and reliable software. You should have experience in building resilient and beautiful web applications using technologies such as React, Javascript, and build tools such as Vite/Webpack. DAY TO DAY RESPONSIBILITIES: Work with UX Designers to ensure the products meet the standards … reviewing code output REQUIRED QUALIFICATIONS: Deep understanding of modern web applications and the surrounding stacks Experience building and supporting public cloud apps (We use React/TS, but experience in other languages is fine) Strong CSS knowledge/understanding Multiple years of production React experience Experience with TDD/testing ...

Senior Frontend Developer (AI Writing Platform)

Location
Greater London, England, United Kingdom
tooling and creative writing interfaces Responsive, accessible UI components that handle edge cases gracefully What you’ll own: Converting UX wireframes into pixel‐perfect React components Implementing best practices for LLM interface design (conversation history, streaming responses, error handling) State management across complex user flows Performance optimisation for real‐time … interactions Collaboration with backend APIs (Go/Python stack) Must‐haves: 4+ years React experience with modern hooks, context, and state management Proven track record building chat/conversational interfaces Experience with complex modal systems and user flow retention Strong understanding of front‐end performance optimisation Portfolio showing clean, intuitive ...

Frontend Engineer

Location
City of Edinburgh, Scotland, United Kingdom
features and working with the applications team to develop and release a portion of our products. This role is skilled in the use of React, with a focus on creating flexible and reusable frontend code, supported by robust testing. This role works with an internal component library through to large … contribute to the SDLC of our products Essential skills & experience We see experience with the following as essential to the job: Good knowledge of React.js and its core principals and best practices Experience of developing with Next.js or another SSR framework Experience with Typescript Experience with Node.js, Express.js ...

Senior Front-End Developer

Location
Greater London, England, United Kingdom
used by hundreds of Segmentify customers to configure, run and personalise their campaigns on a daily basis. Our Tech Stack includes TypeScript, Node.js, React/Vue/Svelte, Vite, esbuild, Babel, pnpm/npm, GitHub Actions, Jest/Vitest, Playwright/Cypress, NestJS/Express, REST/GraphQL (check details … from Stack Share Profile ) Responsibilities: Develop scalable, maintainable web applications regardless of framework (React, Vue, Svelte, vanilla JS) Manage customer integrations, write integration documentation, and support setup phases Analyze and deliver customer revision and feature requests in a timely manner Configure and optimize build pipelines with Babel, Vite, and esbuild ...

Senior Full Stack Software Engineer

Location
Greater London, England, United Kingdom
What we do. Electric Car Leasing Why we do it. Greener. Fairer. Future. We're looking for a Senior Fullstack Software Engineer (Python and React) to join our product and engineering team building the systems that power our ability to revolutionize the electric car leasing industry. Our tech stack … Python with GraphQL, React with Next.js, PostgreSQL and noSQL databases, running on AWS. What you'll do... Work within a dedicated cross-functional team on key products for our customers or our internal teams. Build APIs and integrate with our own and third party services to optimise and automate processes. ...

Web: Full Stack Tech Lead

Location
Greater London, England, United Kingdom
Full-Stack Web Developer — React, FastAPI, Elasticsearch (AWS/GCP) About Clarity Clarity is redefining customer experience with AI. Our mission is to empower businesses to deliver faster, smarter, and more human service interactions. By combining cutting‐edge AI with intuitive design, we enable customer service teams to operate more … company and redefine an industry. As a Full‐Stack Web Developer at Clarity, you’ll own end‐to‐end product surfaces—from sleek React UIs to FastAPI services and Elasticsearch search/—shipping fast, safely, and beautifully. You’re AI‐native (Cursor, v0, Claude Code in your muscle memory), comfortable ...

AI Resident UK/EMEA

Location
Greater London, England, United Kingdom
experience, develop wireframes, and create high-fidelity prototypes. Develop and maintain API integrations, ensuring seamless communication between front-end and back-end systems using React and gRPC. Contribute to back-end development with a focus on creating robust APIs and ensuring smooth communication between the front-end and server using … technologies like Node.js or Python. Build, test, and deploy full-stack web applications using React and gRPC, while ensuring responsiveness, performance, and scalability. Optimize web applications for performance, accessibility, and SEO best practices. Troubleshoot and resolve UI and back-end related issues, ensuring a consistent and optimal user experience across ...

Release Platform Engineer

Hiring Organisation
Hackajob Ltd
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
traceable and compliant. You will manage our source-code-management estate, including GitLab, Sourcegraph, and supporting services like token rotation. By leveraging Python, Go, React, and TypeScript, you will create in-house applicationsfrom compliance dashboards to automated release enginesthat solve complex engineering challenges. Automation is central to this role. … platforms and prompt engineering Familiarity with infrastructure as code using Terraform Experience with relational databases like PostgreSQL and AlloyDB Frontend development skills using React and TypeScript Understanding of observability tools such as Prometheus, Grafana, or Splunk Knowledge of security and compliance standards within source-code management Additional Information Operate ...

Release Platform Engineer

Hiring Organisation
Hackajob Ltd
Location
Stoke-On-Trent, Staffordshire, West Midlands, United Kingdom
Employment Type
Permanent, Work From Home
traceable and compliant. You will manage our source-code-management estate, including GitLab, Sourcegraph, and supporting services like token rotation. By leveraging Python, Go, React, and TypeScript, you will create in-house applicationsfrom compliance dashboards to automated release enginesthat solve complex engineering challenges. Automation is central to this role. … platforms and prompt engineering Familiarity with infrastructure as code using Terraform Experience with relational databases like PostgreSQL and AlloyDB Frontend development skills using React and TypeScript Understanding of observability tools such as Prometheus, Grafana, or Splunk Knowledge of security and compliance standards within source-code management Additional Information Operate ...

Lead Software Engineer

Hiring Organisation
BroadbandUK
Location
East London, London, United Kingdom
Employment Type
Permanent
Lead Software Engineer Location: London, E14 5RE/Canary Wharf Hybrid Job Type: Full-Time Skills: Lead Software Engineer, Laravel, React, Python, AWS, AI/ML, n8n, Claude Code, Cursor, Docker, Startups, DevOps Were looking for a Lead Software Engineer with a path to CTO to join our founding team … Canary Wharf. Youll lead technical direction across our platform, mentor a growing engineering team and build AI-powered products using Laravel, React, Python and AWS. Connectivity matters. Were BroadbandUK. We help millions of people each year make better broadband decisions because fast, reliable internet improves everyday life. Weve already launched ...

Senior Full-Stack Engineer

Hiring Organisation
Tria
Location
Worthing, West Sussex, United Kingdom
Employment Type
Permanent
Salary
£65000 - £75000/annum + Benefits
direction/leading architectural solutions. Good hands-on experience full-stack coding in .NET/C# and a modern front-end framework with TypeScript (React, Angular or Vue). Good experience working with AI - experience building AI into a Product - designing LLM-backed features (retrieval, semantic search, agents). Experience … then please apply ASAP with an up-to-date CV which showcases your experience in the above areas. Full-Stack Engineer, .Net, C#, Typescript, React, Angular, Vue, AI, LLM, Web Engineering, Webtech, Web Technology, Azure, Architecture ...

Senior Software Developer

Location
Newtownabbey, Northern Ireland, United Kingdom
operations and the public-facing auction website. It has been built as a modern TypeScript solution using a Node.js backend API with NestJS, a React administrative portal, and a Next.js customer-facing website. The product is hosted on a contemporary AWS cloud architecture using infrastructure as code … reduce external dependency. Key Responsibilities Deliver feature improvements, new features and bug fixes across the Gavel monorepo, including the Node.js/NestJS backend API, React admin portal and Next.js public website, with a focus on reliability, accessibility, performance and maintainability. Maintain and evolve the backend API, developed using Node.js, NestJS ...

Senior Software Engineer

Location
Manchester, England, United Kingdom
developers build high-profile, impactful, and full-stack systems adopted across the wider Business. You will be working primarily with Golang, Python, Typescript and React, in addition to delivering applications across both on-premise and cloud platforms. You will lead deliveries and focus on the mentoring and development of Junior … cutting edge of technology, we provide extensive training opportunities to further your professional development. You will be introduced to tools beyond Go and React to support this, such as Splunk, New Relic and GCP. This role is eligible for inclusion in the Company’s hybrid working from home policy. Main ...

Fullstack Engineer

Hiring Organisation
Randstad Technologies
Location
Manchester, Lancashire, United Kingdom
Employment Type
Full-Time
Salary
£50.00 - £60.00 per hour
enhance features that power our core customer search experience and new discovery interfaces. Your Impact Feature Delivery: Build responsive, high-performing user interfaces using React and TypeScript, seamlessly integrated with Java backend microservices. Cross-Functional Collaboration: Partner directly with UI/UX specialists to turn wireframes into robust, production-ready … years of practical software development experience with a solid grounding in computer science fundamentals. Core Technical Stack: Strong working knowledge of JavaScript, TypeScript, React, and Java, alongside REST APIs, JSON, and relational databases. Cloud & Tools: Basic understanding of cloud infrastructure concepts, specifically AWS. Mindset & Collaboration: Great team communication, a customer ...

Senior Solution Architect

Location
Greater London, England, United Kingdom
govern design approvals via ARBs and CABs. Modernisation Roadmap: Define migration paths to retire legacy tech (.NET WPF, Terraform tech debt, dual Vue.js/React footprint). Cloud and Security: Design scalable patterns using AWS Well-Architected principles, Docker containerisation, and identity tools Data Architecture: Oversee logical/physical data … Clearance Proven experience in technology modernisation and legacy-to-cloud migration paths. Core tech stack: .NET/.NET Core, Python, JavaScript/TypeScript (Vue.js, React). AWS Managed Services (RDS, SQS, DynamoDB, OpenSearch, ECR) and AWS Well-Architected Framework. Terraform (IaC) and Docker at scale. Identity, authentication, and API Gateway ...

Senior Full Stack Engineer (Realtime & Voice) Customer Experience Platform

Location
Greater London, England, United Kingdom
looking for a senior full stack engineer to anchor this product, owning the realtime and voice layer end to end while building across React/TypeScript front ends, Scala and Python services, and cloud infrastructure. The team is lean and senior, ownership is broad, and the path from your code … text-to-speech pipelines, realtime model orchestration, and latency and quality budgets Build product features across the stack, including web chat front ends in React/TypeScript, backend services in Scala and Python, and infrastructure on GCP Design for multi-tenant scale, with one codebase serving many partners through configuration ...