126 to 150 of 311 React Jobs in London

delivering innovative technology products while maintaining performance and security standards. Your role includes developing high-quality user interfaces with modern JavaScript frameworks like React or Angular, as well as leading code reviews and mentoring junior developers. This position demands advanced experience in Java (17+), strong analytical skills, and a collaborative ...

Apps through plugins, PCFs, custom connectors Hands-on experience on Azure Function Apps, Logic Apps, .Net Container Apps, Copilot Studio Experience of working on React framework, C#, APIs Good knowledge of general database concepts, SQL server, Power BI Experience with building AI agents ...

founding team — fast decisions, no bureaucracy What we're looking for: ✅ 5+ years building production software ✅ Strong full-stack chops (Python/FastAPI + React/TypeScript or equivalent) ✅ Solid SQL & data modelling instincts — comfortable in data-heavy B2B products ✅ Bonus: experience with agentic/LLM-powered products, tool ...

Apps through plugins, PCFs, custom connectors Hands‐on experience on Azure Function Apps, Logic Apps, .Net Container Apps, Copilot Studio Experience of working on React framework, C#, APIs Good knowledge of general database concepts, SQL server, Power BI Experience with building AI agents #J-18808-Ljbffr ...

Apps through plugins, PCFs, custom connectors Hands-on experience on Azure Function Apps, Logic Apps, .Net Container Apps, Copilot Studio Experience of working on React framework, C#, APIs Good knowledge of general database concepts, SQL server, Power BI Experience with building AI agents ...

Spring Boot, microservices, REST/gRPC Cloud: AWS (EKS/ECS, SQS/SNS, API Gateway, Terraform) API: OpenAPI/AsyncAPI, versioning, governance Frontend: React/TypeScript (working knowledge) Domain Expertise (any of these) Real-Time Ledger (accounting, event sourcing) Payments (SWIFT, ISO 20022, settlement) FX (trade lifecycle, rates, positions ...

engineer who comes with experience of closing a whole product cycle, from a product based company. Primarily you’ll be working with JavaScript (Node, React) and Ruby, with a tilt towards the frontend (roughly 70/30). However, they know that a good developer can pick ...

squads, working on products such as Earned Wage Access, Workplace Loans, and Workplace Wealth. The key technologies we use are Claude Code, Python, Typescript, React, Svelte, PostgreSQL, Snowflake and AWS. Stream has a genuine focus on moving quickly, avoiding waste, and getting engineers' work into the hands of users ...

core programming languages such as Python, C#, TypeScript or related is also essential. See below for their tech stack: Python, C#, TypeScript, .NET Core, React, Azure, Redis, Terraform, REST APIs, Distributed Systems, Distributed Storage, Azure Tables, SQL Server, Cosmos, xUnit. What’s in it for you? They’re offering between ...

would be happy working with their stack going forward, then they’d still love to talk. Their software engineering stack looks like this: React, Redux, Ruby, Node, AWS, Linux, Elasticsearch, Cassandra, Kubernetes, Docker, and Kafka. The candidate What’s in it for you? Based near Tottenham Court Road Station (right ...

experience Contributions to open-source AI/ML projects Experience with aviation, aerospace, or other safety-critical domains Tech Stack Core: Python, FastAPI, TypeScript, React AI/ML: OpenAI, Anthropic, computer use, evals, voice agents Infrastructure: Azure, Docker Process Initial Screen (30 min video call with one of the founders ...

help shape solutions rather than just build what you’re told What we’re looking for Genuine full stack experience, comfortable building frontends (JavaScript, React or similar) but equally confident designing and building backend APIs and working with databases. Evidence you can pick up an unfamiliar language quickly ...

help shape solutions rather than just build what you're told What we’re looking for Genuine full stack experience, comfortable building frontends (JavaScript, React or similar) but equally confident designing and building backend APIs and working with databases. Evidence you can pick up an unfamiliar language quickly ...

know how to coach people to do their best work You’ve got hands‐on range across software and data: Python (Flask/Django), React.js, and analytics/data engineering – building pipelines, models, and data products yourself You're fluent in software and data architecture, containerisation, and cloud platforms ...

defend design decisions to senior engineers and non-engineers alike Expert PHP developer (12+ years); Symfony or equivalent frameworks 10+ years modern JavaScript; React or Vue (Next/Nuxt a plus) Expert level knowledge in at least one more programming language (Python a plus) Full-stack architecture expertise: monoliths, services ...

results in exponential growth. Although our stack is constantly evolving (and you can help shape that), here’s a current snapshot: Full‐stack TypeScript, React, Postgres, and Temporal for long‐running orchestration. Infra: AWS, Terraform, strong observability via Sentry and Datadog (full‐stack, not just logs). Data: we lean ...

Senior Tech Lead - PHP, Node.js, React, AWS - Successful FinTech - UK Remote-First - Highly Competitive Salary We have a fabulous opportunity to join a successful FinTech as their Senior Tech Lead , on a UK remote-first basis. Joining the engineering team that develops and maintains the technology that powers the entire … reliability Leading technical discussions and design reviews And more! The tech environment: Backend: PHP (Laravel, Syfony), JavaScript/TypeScript (Node.js, serverless services) Frontend: React/TypeScript, React Native Infrastructure: AWS (ECS, EKS, RDS, S3, Lambda) Containers and Orchestration: Docker, Kubernetes CI/CD: Jenkins, GitHub Actions Databases: MySQL, PostgreSQL Monitoring ...

seeking a Senior Software Engineer (Frontend) to join their team in London, United Kingdom. The role focuses on managing front-end development using React and Next.js to design and implement seamless user interfaces. Ideal candidates will have strong experience in TypeScript and a passion for creating responsive designs. A competitive ...

Full Stack C# engineer to design and deliver scalable applications powering critical market infrastructure. You will work across frontend and backend layers using TypeScript, React and C#, with a focus on security, performance, and maintainability. The role involves collaborating with product owners, architects, and engineers to implement microservices, APIs ...

software in a fast-paced, production-critical environment, collaborating with AWS and cross-functional partners. You will demonstrate strong TypeScript/JavaScript capabilities, frontend (React/Redux) and backend experience, along with microservices, cloud tooling, and modern SDLC practices to deliver scalable services in production. #J-18808-Ljbffr ...

protect our global customers and foundation money transfers. You will drive backend and frontend work (80% backend, 20% frontend) with Java/Spring, React/TypeScript, and ensure scalable, secure systems. Collaboration with Product, Data Science, and Investigations is essential, and you’ll apply TDD and robust design practices. #J ...

London is seeking a Senior Product Engineer to own the scientist-facing interfaces of an AI-powered drug discovery platform. The stack is React and TypeScript on the frontend, with Java and Python services behind it, and you’ll work mainly in the frontend and API layers. This high-ownership ...

stack software engineer to build and scale our innovative products. The ideal candidate has over 5 years of experience in software engineering, particularly with React and TypeScript, and thrives in a fast-paced startup environment. This role is based in London, working onsite 4 days a week with a competitive ...

startup. You will own end-to-end systems, build autonomous AI workflows, and scale data pipelines that drive revenue. You’ll work with TypeScript, React, Next.js, AWS, and data tooling to deliver high-impact outcomes from day one. The role requires 3+ years (mid) or 6+ years (senior) of professional ...

Native SaaS Platform | Tripled ARR in 12 months Remote‐first (UK) with hybrid London office option £130,000 + equity Technologies: Typescript/Node, React, GCP/AWS We’re working with a rapidly scaling AI‐native SaaS company that raised an impressive Series B round in 2025. Their platform ...