1,901 to 1,925 of 2,346 Permanent React Jobs

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

Location
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 ...

Senior Software Engineer

Location
Greater London, England, United Kingdom
priorities can shift across projects but the bar for quality stays high. Our core stack includes TypeScript, Node.js, pnpm, Turborepo, NestJS, Prisma, PostgreSQL, Redis, React, Next.js, Vite, Tailwind CSS, shadcn/ui, TanStack Query, Stripe, Auth0, Sentry, OpenTelemetry, Jest, ESLint, and Prettier. Many of our engagements run on this same … Design and build RESTful and GraphQL APIs using NestJS and Prisma on PostgreSQL Develop modern web applications and internal dashboards in Next.js, React, and Vite with Tailwind CSS and shadcn/ui Integrate third-party systems including Stripe, Auth0, and other client-specific tools Write clean, well-tested TypeScript across ...

Full Stack Software Engineer

Hiring Organisation
Hunter Selection
Location
Bristol City Centre, Bristol, United Kingdom
Employment Type
Permanent
Salary
£50000 - £60000/annum generous benefits
technical decisions and work across the full stack as the business continues to scale. The core stack includes: TypeScript/JavaScript NestJS/Node.js React/Next.js MySQL AWS Docker We're looking for someone with strong commercial software engineering experience who enjoys being hands-on, but also wants … great opportunity for you. This is an urgent vacancy, so please apply early to avoid disappointment! Key words: TypeScript, JavaScript, NestJS, Node.js, React, Next.js, MySQL, AWS, Docker Ref: INDITND If you are interested in this position please click 'apply'. Hunter Selection Limited is a recruitment consultancy with offices ...

Backend Engineer - Repeats

Hiring Organisation
iwoca
Location
London, UK
Employment Type
Full-time
well-tested Python, and take part in code reviews to learn from teammates and keep quality high. Pick up front-end work in Pandora (React, TypeScript) so you can own features end-to-end over time. The requirementsEssentialComfortable writing clear, testable Python. You do not need to be an expert.1+ … years of commercial engineering experience. Working knowledge of relational databases. We use PostgreSQL.Curious about the full stack and up for picking up front end (React, TypeScript) over time. Clear written and spoken communication. You can explain technical work in a way non-engineers can act on. You care how your ...

Software Engineer, Front-End Leaning

Location
Greater London, England, United Kingdom
level up those around you Experience requirements Strong frontend engineering experience, with production-grade work on complex, high-performance UIs Proficiency in TypeScript and React Experience with 3D rendering, WebGL, Canvas, or similar browser-based visualisation technologies is a strong plus Familiarity with Python and backend development Experience with Kubernetes … looking for experience across all of these — as long as you're open to learning, please apply. Backend: Python and Rust Frontend: TypeScript and React Deployment: Kubernetes Infrastructure: GCP Why Encord Competitive salary, commission, and meaningful equity in a high-growth startup Strong in‐person culture — most of the team ...

Staff Frontend Engineer

Location
Greater London, England, United Kingdom
engineering experience, with a track record of building, maintaining, and architecting complex, data‐heavy web applications at Senior or Staff scope. Advanced proficiency in React, TypeScript, and web fundamentals, with deep experience structuring large‐scale frontends across modules, state management, routing, and data‐fetching patterns. Proven background building visualization‐centric … physical test engineers) or exposure to ML/AI workflows, experiment tracking, and agentic interfaces. Hands‐on experience with GraphQL, typed API clients in React, or SSR/SSG performance‐focused frameworks. Wondering if you’re a good fit? We believe in investing in our people, and value candidates ...

Staff Frontend Engineer

Location
Greater London, England, United Kingdom
engineering experience, with a track record of building, maintaining, and architecting complex, data-heavy web applications at Senior or Staff scope. Advanced proficiency in React, TypeScript, and web fundamentals, with deep experience structuring large-scale frontends across modules, state management, routing, and data-fetching patterns. Proven background building visualization-centric … physical test engineers) or exposure to ML/AI workflows, experiment tracking, and agentic interfaces. Hands-on experience with GraphQL, typed API clients in React, or SSR/SSG performance-focused frameworks. Wondering if you're a good fit? We believe in investing in our people, and value candidates ...

Senior Software Development Engineer

Location
Nottingham, England, United Kingdom
seeking a Software Development Engineer to join us on our mission, where you’ll use a number of different languages (such as Java, Python, React/Typescript), to build both front and backend solutions, solving complex problems as we continue to build our next generation data ecosystem, to help … coaching of more junior engineers. Strong programming skills with a good working knowledge of modern OO languages/technologies such as Java, Python, React/Typescript. Demonstrable knowledge of creating architectural designs that meet the business need. You’re able to effectively communicate and work together across engineering to maximise ...

Full Stack Developer

Location
Manchester, England, United Kingdom
improve, and maintain software products across frontend and backend components, taking responsibility through implementation, testing, and ongoing operation. Build and maintain frontend functionality using React and TypeScript, supported by HTML and CSS. Develop backend services within a Python environment, including Flask, Django, and FastAPI. Design, build, test, and maintain custom … developing and maintaining live software products, including delivering functionality, resolving operational issues, and taking responsibility for improvements after delivery. Practical experience building and maintaining React and TypeScript applications, with a sound understanding of HTML and CSS. Strong backend development experience, including designing, building, and troubleshooting custom APIs and system integrations. ...

Backend Software Engineer - New Bets

Location
Greater London, England, United Kingdom
within a week whether you have built something they need. The squad is small on purpose. You'll build the whole thing: the React front end, the Python services behind it, and the prompts, retrieval and eval harnesses that make an LLM feature safe enough to put in front … fast-track to exposing yourself to complex problems and pushing towards a Senior level. What you'll do: Build new products end to end: React/TypeScript front ends, Python services, and the LLM and voice pipelines in between Turn a one-page thesis into a working v0 in days ...

Senior Full Stack Engineer - London

Location
Greater London, England, United Kingdom
cross-functional product team and report to its Team Lead. Full stack here means you own a feature the whole way down: the React and TypeScript screens people use, the GraphQL layer in between, and the services behind it. Most engineers arrive stronger on one side than the other. That … build: Our architecture and our engineering practices aren’t fixed. We expect senior engineers to push on both. Our stack The web frontend is React and TypeScript on a custom design system, talking to the backend through a federated GraphQL layer. Services are written in Ruby, Elixir and TypeScript, with ...

Senior Software Engineer

Hiring Organisation
Exam Papers Plus
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£65,000
lean on, without carrying the management load. What you'll be responsible for: Building and shipping features across our learner and content platforms (React, Node.js, NestJS), taking work from spec through to production. Using AI tools such as Cursor and Claude to accelerate your work, while owning the validation … Full-stack Engineer, with at least some of that time at a senior level. Strong TypeScript across our stack - a pnpm and Turborepo monorepo, React 19 with TanStack Start, Router and Query, Tailwind CSS, Prisma and PostgreSQL (Supabase), Better-Auth and Stripe, deployed to Google Cloud Run via GitHub Actions ...

Staff Engineer Screening Operations and Logistics

Location
Greater London, England, United Kingdom
outcomes. Lead and apply deep expertise in AI-assisted engineering with rigorous review to deliver durable, scalable outcomes. Lead and apply deep expertise in React or Angular frontend development to deliver durable, scalable outcomes. Lead and apply deep expertise in quality, testing and documentation standards to deliver durable, scalable outcomes. … Java backend engineering Demonstrable experience in software architecture and integration patterns Demonstrable experience in AI-assisted engineering with rigorous review Demonstrable experience in React or Angular awareness Demonstrable experience in quality, test and documentation standards Demonstrable experience in screening and logistics workflow learning agility Demonstrable experience in technical leadership without ...

Software Engineer

Location
Liverpool, England, United Kingdom
developing, and deploying solutions that directly and positively impact artists and the music industry. You’ll work across a modern stack including C#, TypeScript, ReactJS, RDBMS (MySQL), and AWS. This role also sits within a team that’s actively shaping how we build software with AI. We’ve adopted … will not be considered. Videos to Watch What Is Music Publishing? We’re Looking for Someone WithProven product engineering experience, ideally including C#, TypeScript, ReactJS, or similarA solid understanding of relational databases and cloud platforms (AWS)Hands-on experience with, or genuine curiosity about, AI-assisted development and agentic coding ...

Senior Software Engineer - Front-End

Hiring Organisation
Speechmatics
Location
Cambridge, Cambridgeshire, UK
Employment Type
Full-time
doOwn product features from ideation through to delivery, contributing to UX thinking, frontend execution, and post-launch iterationBuild polished, accessible user interfaces using React, JavaScript, HTML, and CSSMake UX and UI decisions independently, collaborating closely with designers and PMs rather than waiting on detailed handoffsDesign and run A/… production and at scaleRun user interviews and meet customers to understand how people use the product and what drives adoptionWhat you'll needProficiency in React, JavaScript, HTML, and CSS with a track record of shipping production-quality frontend codeA product-minded engineering approachComfort owning UX and UI decisions independentlyHands ...

Principal Software Engineer (GTMO/Mesh)

Location
Greater London, England, United Kingdom
raises the bar on how we ship, not just what we ship. What you'll be doing: Owning features across the full stack — React frontends, backend APIs, cloud infrastructure — from design through production Responding to production incidents and shipping fixes Building and improving core platform capabilities: AI agents, orchestration workflows … What you'll bring: 12+ years of software engineering experience with a track record of delivering reliable, scalable systems Strong full-stack skills — React/TypeScript, backend services, cloud infrastructure Experience building in a cloud-native environment, preferably GCP — Kubernetes, Cloud Functions, Pub/Sub, managed databases Solid understanding ...

Senior Software Engineer - DataHub Experience & Control Plane

Location
Greater London, England, United Kingdom
universe. We’ll trust you to: Build intuitive, production-grade product experiences for engineers working with data. Design and implement full-stack workflows across React-based interfaces, APIs, and backend services. Build control-plane systems that turn complex data infrastructure into simple, reliable user actions. Apply design thinking to technical … technical direction of the platform. You’ll need to have: Strong professional software engineering experience building production systems. Experience building reliable frontend applications using React, Vue, or a similar modern UI framework. Backend engineering experience in Java, Kotlin, Scala, Go, or another production backend language. Strong systems fundamentals across distributed ...

Frontend Engineer

Location
Greater London, England, United Kingdom
frontend, backend, and infrastructure, and every team ships to production independently, without centralized approval. Wherever you land, you'll help shape a shared TypeScript, React, and Next.js codebase in a monorepo built for rapid, AI-assisted development, and you'll build against a company-wide design system so what … pipeline behind the data you're rendering. What We're Looking For The Essentials 3+ years of professional frontend development experience, with excellent TypeScript, React, and Next.js. Experience with MUI or a similar component library. Solid testing practice with frameworks like Jest and Cypress or Playwright. Proficient with Git, Docker ...

Senior Software Engineer (BackEnd)

Location
Greater London, England, United Kingdom
ability to revolutionise the electric car leasing industry. Our tech stack is Python with GraphQL, PostgreSQL and NoSQL databases, running on AWS, with a React/Next.js frontend. What you'll do... Work within a dedicated cross-functional team on key products for our customers and internal teams. Design … track record of taking ownership of features from inception through to delivery. Any of the following would be a bonus Strong frontend experience with React, TypeScript, and Next.js, enough to engage with Full Stack engineering teams Experience with event-driven architecture/systems (EDA) Production experience with AI tech ...

Senior Engineer

Location
Hemel Hempstead, England, United Kingdom
Senior Software Engineer** **AI First with Node.JS/TypeScript/React/PostgreSQL/TDD****UK Remote****Permanent | Full Time****Competitive salary + bonus and benefits****About the role**The way great software gets built is changing fast and we’re changing with it. Haven Product & Technology are looking … using them to work smarter, not just faster.* Strong hands-on experience with Node.JS, JavaScript/TypeScript, TDD, PostgreSQL (or similar relational databases) and React* Full-stack expertise with an equal bias towards backend and frontend* Solid experience of building responsive designs, performance-optimised interfaces and best-in-class frontend ...

AI and automation developer

Location
Manchester, England, United Kingdom
data within proclaim. Translate operational requirements and user journeys into working software, agreeing scope and priorities with users and managers. Develop across the stack: React/TypeScript interfaces, Electron desktop behaviour, Python APIs, Node.js workers, and SQL. Design, change and maintain SQL Server data models that other systems depend … take a piece of work from first conversation to a stable release. Desirable skills and experience These are some desirable skills but not essential React and TypeScript Electron or other desktop application development Node.js Python web APIs (FastAPI, Flask or similar) SQL Server: schema design, views, stored procedures, indexing ...

Product Engineer (all levels)

Location
United Kingdom
full-stack expert in the JavaScript/Node.js ecosystem with a pragmatic approach to tech debt and tool selection. Has hands-on expertise with React, Angular, or Node.js, with the ability to move between frontend and backend as needed. Has experience architecting on AWS (specifically Lambda, DynamoDB, SQS, and CloudFormation … shipping features. Our current stack We have 2 separate fully functional web apps in prod: one for clinical users and one for patients. Angular, React and Electron, Mixpanel/Posthog for analytics, a fully serverless backend in AWS (Cognito, Appsync GraphQL, Lambda, DynamoDB). We have good functional & unit test ...

Full Stack Developer

Location
Manchester, England, United Kingdom
will build both theinterfacescustomersuseand the APIs that power them. Key Responsibilities Product Development Build and ship features across the Customer Portal — from the React frontend through to Node.js REST APIs. Write TypeScript across the stack, working within a strict typing culture that leans on the compiler to catch mistakes early. … TypeScript, ideally in a strict-mode codebase — comfortable with type narrowing, discriminated unions, and building without reliance on `any`. Hands-on experience with React specifically — itscomponentmodel, hooks and renderingbehaviour, not just general familiarity with acomponentframework. Experience building REST APIs on Node.js. Nice tohave: exposure to schema-first or contract ...

Full Stack Developer

Location
Belfast City District, Northern Ireland, United Kingdom
will build both theinterfacescustomersuseand the APIs that power them. Key Responsibilities Product Development Build and ship features across the Customer Portal — from the React frontend through to Node.js REST APIs. Write TypeScript across the stack, working within a strict typing culture that leans on the compiler to catch mistakes early. … TypeScript, ideally in a strict-mode codebase — comfortable with type narrowing, discriminated unions, and building without reliance on `any`. Hands-on experience with React specifically — itscomponentmodel, hooks and renderingbehaviour, not just general familiarity with acomponentframework. Experience building REST APIs on Node.js. Nice tohave: exposure to schema-first or contract ...

Senior Engineering Manager

Hiring Organisation
Multiverse Group
Location
London, UK
Employment Type
Full-time
real users and operated them — not a side experiment. Strong Python/TypeScript (if you don't have Typescript, you will need to learn): React/Next.js (App Router, RSC, server actions), tRPC/GraphQL, Node/Express. PostgreSQL at scale via an ORM, with migration discipline on large, live … renegotiates the scope out loud when it's wrong, not someone who absorbs it and hopes it works out. Stack & how we leadTypeScript core (React/Next.js, Node) with PostgreSQL and RabbitMQ as the event backbone, plus Python and Elixir services — from RAG pipelines to a Claude-powered edge-native ...