76 to 100 of 303 React Jobs in London

iterating rapidly to ramp up automation. About You 5+ years building production software, with a strong backend emphasis Strong command of Python, TypeScript and React/Next.js Experience building and operating scalable, secure systems - you understand infrastructure, observability and deployment pipelines Experience with AI agent orchestration frameworks (LangGraph, OpenAI Agent ...

bring solid full‐stack engineering experience (not purely front end or back end), working across the full development lifecycle. Your core technology experience includes React, Node.js, Python, and Java. You have hands‐on cloud experience, designing and delivering solutions on AWS and/or Azure. AI experience is essential ...

frontend systems into a new bespoke solution incorporating an API currently being developed in Python (FastAPI with PostgreSQL) and a web-app frontend in React.js or similar. WHAT YOU’LL DO Lead the CMS architecture, the heart of the creation and distribution of our assets and data. In collaboration with ...

offer. ABOUT THE ROLE Tech Stack Backend : AWS Serverless Service, including Lambda, API Gateway, DynamoDB, S3, SNS, SQS, EventBridge, Kinesis, Node.js, YAML Frontend : React/Next.js, React Native Programming Languages : TypeScript; JavaScript, Python Infrastructure : Terraform, GitHub CI/CD pipelines Responsibilities Provide technical leadership and mentorship to your team. … product planning meetings and provide technical input to guide the team's priorities. Design, develop, and maintain full-stack applications using Node.js, AWS Lambda, React with Next.js, TypeScript, and Terraform. Write clean, efficient, and well-tested code that adheres to best practices and coding standards. Ensure code quality, organisation ...

hats A genuine interest in building meaningful products in a collaborative environment Nice to have Exposure to modern frontend technologies like TypeScript, JavaScript, and React Cloud (AWS preferred) and Linux experience Experience in fast-paced, early-stage start-up environments Why Join? Backing from a globally recognised VC High impact ...

aerospace, defense, or other high-performance engineering organizations is advantageous. Experience building frontend-heavy SaaS applications with strong attention to UX. Familiarity with TypeScript, React, Postgres, and AWS. Strong generalist mindset with the ability to work across the stack and operate independently in high-autonomy environments. ...

Highly skilled in Python development, with knowledge of FastAPI framework. Good databases knowledge with schema design and SQL. Some front-end development preferably TypeScript & React is highly desirable. Experience of designing scalable systems and working with CI/CD pipelines. Experience in data-driven applications, cyber security, or SaaS platforms ...

user-facing tools. C++ Software Engineer requirements Strong experience with modern C++ (C++11 or newer) Experience working with UI technologies (JavaScript, TypeScript, Angular, React etc.) Solid grounding in algorithms, data structures, and performance optimisation Strong attention to detail and clear communication skills Comfortable working in a fast-paced, collaborative environment ...

help build the next generation of their consumer platform. Quick overview • Salary: £100k–£120k • Location: London (hybrid, 3 days in office) • Stack: TypeScript, Node.js, React • Team: Small, high ownership engineering team • Product: High-traffic consumer platform used daily What you’ll be working on • Building and scaling consumer-facing product ...

What They’re Looking For • Experience developing websites within an eCommerce environment • Strong skills in JavaScript, HTML, and CSS • Experience with frameworks such as React or Vue • Familiarity with Salesforce Commerce Cloud or similar platforms • Understanding of how systems connect via APIs and integrations • Attention to detail and a focus ...

Strong communication skills - comfortable working with both technical and non-technical stakeholders Experience with or exposure to ML/LLM-based solutions Experience with React or Spark is a plus Why Join Competitive salary + equity (stock options) Comprehensive benefits including health, dental, vision Direct exposure to leadership and real ...

development goals. Key Responsibilities Strategy & Ownership: Define the automation roadmap and select the appropriate tooling (Playwright, Selenium, Cypress, etc.) for a .NET, MVC, and React environment. Framework Building: Build and maintain robust, scalable automated test suites covering UI, API, and integration testing layers. Performance Engineering: Define and implement performance ...

rapid career progression and increased responsibility as you make a direct impact on our ambitious growth targets. Key Skills: Strong understanding of TypeScript and React Full-stack engineering skills, particularly with a front-end focus Comfortable working with SQL and data analysis tools Experience with experimentation, UX design, and product ...

future hires will build on What they are looking for 5+ years building modern web applications with a strong backend emphasis Strong command of React/Next.js and Python/TypeScript Experience with AI agent orchestration frameworks (e.g. LangGraph, OpenAI Agent SDK) The architectural judgment to make confident decisions ...

round , with significant upside potential as the business scales toward Series A and beyond. Core requirements: 3 plus years of engineering experience Strong in React and comfortable across the full JavaScript and TypeScript stack Backend experience building REST APIs using NestJS or Express Or Python Experience with MongoDB or similar ...

solving skills e.g. ability to lead root cause analysis, own resolutions & Strategic thinker who can see the big picture and provide thought leadership. Preferred: React JS, .Net development experience a plus Application Management experience Knowledge of Bank technologies (Quartz/Risk - IMM) Knowledge of Securities Lending or Prime Financing ...

audit-sensitive environments . Familiarity with workflow orchestration tools . Experience turning internal automation into scalable internal products, including dashboards or tools (e.g. TypeScript, React, Next.js or similar ). Opportunity This is an opportunity to design and build an AI-driven operational platform from the ground up within a sophisticated ...

scaling high-performing teams Experience delivering enterprise-grade SaaS applications in a high-growth B2B environment Strong technical depth across: Backend: Node.js, Typescript Frontend: React.js, Typescript Database: MySQL Cloud/Infra: AWS, ECS, K8s, Airflow, Kafka, Serverless Solid understanding of SaaS fundamentals: onboarding, authentication, SSO, granular authorisation, multi-tenancy Familiarity ...

scaling high-performing teams Experience delivering enterprise-grade SaaS applications in a high-growth B2B environment Strong technical depth across: Backend: Node.js, Typescript Frontend: React.js, Typescript Database: MySQL Cloud/Infra: AWS, ECS, K8s, Airflow, Kafka, Serverless Solid understanding of SaaS fundamentals: onboarding, authentication, SSO, granular authorisation, multi-tenancy Familiarity ...

academic group Experience with production machine learning or LLM-based systems Exposure to enterprise data platforms or similar tools Frontend development experience (e.g., React) Familiarity with distributed computing frameworks (e.g., Spark) What’s on Offer Competitive compensation package, including equity Comprehensive benefits Hybrid working model Opportunity to build products ...

energy, trading, or fintech into the product What Were Looking For Strong frontend fundamentals across HTML, CSS, JavaScript, and a modern framework, ideally React A track record of shipping customer-facing products and being able to demonstrate their impact Strong product instinct, with the ability to think beyond the brief ...

audit-sensitive contexts Familiarity with workflow orchestration tools Experience productising internal automation into scalable applications, including operational dashboards or internal tools (e.g., TypeScript, React, Next.js or similar) This is an interesting opportunity to design and build an AI-driven operational system from the ground up . With the application ...

visualisation. Test automation (unit, integration, contract tests) and chaos/latency testing for agents. Basic front-end skills for internal tools (e.g., Fluent UI, React nice to have). We offer: Our offer to you We want everyone at Rathbones to fulfil their potential, in an environment where ...

Graduate/Junior Developer who have recently graduated from university and have a basic understanding of any of the following technologies: Python, JavaScript, PHP, React, React Native, Django, Postgres, Docker and Agile; which might have been acquired as part of your degree course or through a placement year in industry. ...

contract, outside IR35, 3 days/week on-site Design and build user-friendly web & mobile interfaces Turn wireframes into clean front-end code (React/Vue/Angular) Collaborate with product & engineering, conduct user research Ensure accessibility & design consistency Requirements: UX design + front-end dev experience (fintech ...