926 to 950 of 1,001 React Jobs in London

looking for full-stack engineers with React, Typescript skills to join one of the UK’s most exciting Climate Tech innovators. They’ve built a platform which helps to drive the transition away from fossil fuel heating in people’s homes and are now looking to add to their team. … needing A background working for product-led start-ups/scale-ups or perhaps you have been a founding engineer previously. React and Typescript on complex product builds. Relational database design and SQL. REST APIs. Any of the following would be very desirable: Postgres, Node, Tailwind, Docker. Strong product focus ...

email and analytics; Own backend problems independently while keeping data handling clean, secure and pragmatic; Maintain and make light updates to the Next.js/React web platform; Support login, redemption flows and features tied to game launches and promotions; Use AI tools daily to accelerate coding, refactoring and testing; Build … working collaboratively; Comfortable supporting a technical lead rather than being the lead; Able to move between mobile polish and backend logic; Nice to have: React/Next.js, Google Cloud, Docker, CI/CD, Firebase, mobile analytics, in-app purchases, push notifications, e-commerce, login and user-account systems, small product ...

Regulatory Reporting Portal for external customers, driven by regulatory changes and strategic objectives to outperform competing exchange offerings. Responsibilities Design and develop modern React-based user interfaces for a new customer-facing regulatory reporting platform. Build features end-to-end from Figma designs through to production deployment. Integrate frontend applications … performance, and maintainability. Contribute to architectural discussions as the platform evolves away from legacy technologies. Essential Skills 8+ years of software engineering experience. Strong React and TypeScript development experience. experience building complex enterprise-grade web applications. Strong understanding of REST APIs and microservice architectures. experience integrating frontend applications with backend ...

troubleshoot performance, networking, configuration and integration issues Frontend/Web Architecture Strong understanding of modern web and headless commerce architectures Working knowledge of React and Next.js Ability to troubleshoot issues across complete customer journeys Retail & eCommerce Experience - Essential You'll need significant experience delivering or supporting high-volume B2C retail … debugging Release and rollback strategies Automated operational runbooks Vulnerability remediation Shift-left engineering and continuous improvement Technology Environment The platform incorporates technologies including: commercetools | React/Next.js | TypeScript/Node.js | Azure Functions | Azure App Services | Cosmos DB | Contentful | Algolia | Talon.One | Adyen | Cloudflare | GitHub CI/CD | Infrastructure as Code | OpenTelemetry ...

through to performance optimisation, experimentation and continuous improvement. A day in the life:Build and enhance customer-facing and internal web applications using Next.js, React, TypeScript and GraphQL, delivering features across multiple products and business areas.Collaborate with Product, Design, Marketing and Backend teams to create intuitive, accessible and high-performing … your work, proactively identifying opportunities to improve our applications, developer experience and ways of working. About You: Commercial experience building modern web applications using React, TypeScript and Next.js.A solid understanding of frontend engineering principles, including component-based architecture, state management and responsive, accessible UI development.Experience working collaboratively with Product Managers ...

actually use Genuine product instinct - you can tell the difference between impressive and useful, and you optimise for useful Front-to-back range: a React UI a customer enjoys, and the API and data model that make it real AI-native working style: Claude Code is already in your daily … behavioural phone screen, technical phone screen, and a paid on-site work trial. Target turnaround is under two weeks from first conversation. TypeScript, Node.js, React, Tailwind, OpenAPI, Express, Azure (Container Apps, Service Bus, Front Door, Entra ID), Postgres, Terraform, GitHub Actions, Docker. Anthropic-first AI with in-house evals ...

What you will do: Our Web Dev/UI software engineering internship is an intensive 10-week experience at Jump Trading. During your internship, you will use advanced Typescript, Python, and modern Web frameworks to ...

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 ...

Android Developer – FintechQuant Capital is urgently looking for an Android Developer to join our high profile client. Our client is a small fintech firm creating by one of the world's best known personalities in ...

this position, you should have a proven track record of successfully taking products to production, with Full Stack modern programming expertise that includes React, Typescript and Node.js, React Native, and cloud development (AWS). Understanding domain-driven design and best practices in architecture, software, security, and data management is essential.Experience ...

build it, making this an opportunity to have significant technical and strategic impact. What We’re Looking For 6+ years of experience working with React and TypeScript. Experience with Remix and React Router v7 is a plus. Can independently lead projects from concept to launch Excellent written and verbal communication ...

Engineer to design, develop, and maintain scalable backend services and robust frontend interfaces. The role emphasizes microservices, API development, and secure, performant systems with ReactJS on the frontend. You will collaborate with product managers and engineers to deliver AI-enabled solutions, ensuring SoC, security best practices, and high availability across ...

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 ...

senior software engineer to join our core engineering team. Your role will involve designing scalable backend services and building user interfaces using TypeScript, React, and Node.js. You will also mentor junior engineers and contribute to architecture decisions. With more than 5 years of experience required, you will work closely with ...

London, this 12-month contract role focuses on front-end development and real-time interfaces. You will lead UI development, build scalable interfaces with React and RxJS, collaborate with Product, UX and Backend teams, and mentor UI engineers while integrating with Java #J-18808-Ljbffr ...

into whatever needs doing, and are ready to learn and grow with the company. For this particular role, we need a senior, product-minded React engineer who has built and shipped frontends at startups before, ideally more than once. You will be comfortable owning a frontend end-to-end - from … bring their work together into experiences customers love. We would love to hear from you if you: Have deep, expert-level experience building production React applications, including state management, performance and testing Deep understanding of TypeScript, modern React tooling (e.g. Next.js, Vite) and design systems Have built multiple frontends from ...

explainability checks Partner with business stakeholders (Underwriting, Claims, Actuarial, Legal) to shape AI roadmaps Technical project lead experience 7 Guide and mentor .net developers, react developers, and GenAI developers Define best practices, standards, and architectural guardrails for GenAI adoption Qualifications and experience we consider to be essential for the role … Technical Stack & Platform Experience Programming & Frameworks Strong proficiency in .NET/React GenAI & LLM Platforms Azure OpenAI APIs/enterprise LLM platforms Experience integrating AI solutions into enterprise systems .NET (Backend) and React (Frontend) Developer Prompt Engineering & LLM Design Retrieval Augmented Generation (RAG) Architectures Skills and Personal attributes we would ...

will join on an initial 12 month contract. Key Responsibilities Lead UI development and front-end architecture. Build scalable, low-latency trading interfaces using React and RxJS. Work closely with Product, UX and Backend teams. Provide technical leadership and mentoring to UI engineers. Integrate with Java backend services and real … time data streams. Drive performance, scalability and modernisation of the UI platform. Key Skills Strong React, TypeScript and RxJS experience. Experience with Redux/Context API, WebSockets and Vite. Knowledge of micro-frontends and modular architecture. Experience with Vitest, Playwright, Storybook or similar. OpenFin experience is advantageous. Financial markets experience ...

Django . Build automated pipelines to process large financial datasets . Optimize database queries for Oracle, or MongoDB . Create responsive web applications using React.js and TypeScript . Build reusable UI components with Tailwind CSS or Material UI . Integrate real-time data streaming using WebSockets. Required Experience: Education: Bachelors … related field Experience: 5+ years in software development, with 2+ years in banking or fintech Backend: Advanced Python proficiency, asynchronous programming Frontend: Strong React.js ...

Front End Developer £500-£540 per day | Outside IR35 React | TypeScript | Secure, Analyst-Facing Applications Location London (MOD site) Working Pattern 4 days per week onsite Clearance Current DV Security Clearance required Background MOD/Defence/National Security experience required The Opportunity We're looking for an experienced Front … help deliver modern frontend applications that integrate with secure backend services and existing Defence platforms. Key Responsibilities Develop and maintain frontend applications using React and TypeScript. Build reusable UI components aligned with a coherent design system and component library. Work closely with UX Designers to translate user journeys, wireframes ...

team, you'll help deliver modern frontend applications that integrate with secure backend services and existing Defence platforms.Key ResponsibilitiesDevelop and maintain frontend applications using React and TypeScript.Build reusable UI components aligned with a coherent design system and component library.Work closely with UX Designers to translate user journeys, wireframes and prototypes … sessions.Contribute to frontend testing, quality assurance and continuous improvement.Essential Skills & ExperienceDemonstrable experience delivering software within MOD, Defence, National Security or similarly secure environments.Strong commercial React development experience.Strong TypeScript capability.Experience consuming REST APIs and collaborating closely with backend engineering teams.Experience building responsive, accessible and maintainable user interfaces.Good understanding of component-based ...

alternate opportunity.Position Overview:Front-end developers at Squarepoint are instrumental in enhancing user experience on our sophisticated research and trading platforms. You will use React and Typescript to develop fully-fledged applications facilitating real-time data access, and support the exploration of large volumes of data integral to our trading … emphasis on software development,Up to 4 years experience in a relevant role such as software development,Experience in web development using a modern React stack with TypeScript,Excellent written and verbal communication skills,Willingness to pick up and learn new technologies and frameworks,Ability to work well ...

Python, React, SQL, AWS, Compliance, Market Surveillance McGregor Boyall are partnered with a fast-growing multi-strategy investment firm building their entire Operations and Compliance platforms from the ground up. The firm is growing it's AUM and staff headcount and currently fit's into the small-mid scale … role requires 5 days per week onsite in London Required skills: - 2-7 years' experience as a Python Developer - Strong Front end experience with React/Typescript - Proven expertise working in trade surveillance, regulatory reporting or compliance Nice to have: - AWS - SQL - REST APIs - Postgres McGregor Boyall is an equal ...

Front-End Engineer to build the consumer and internal products that power a next-generation energy company.ResponsibilitiesBuild and maintain responsive, performant web applications using React, TypeScript, Next.js, and modern front-end practicesCollaborate with backend engineers to implement APIs and ensure smooth data integrationWork closely with product and design teams … energy techRequirementsBachelor’s degree in a technical or analytical field, or equivalent practical experience5+ years of hands-on experience developing web applications with TypeScript, React, HTML, CSS, and Next.jsProven experience building and shipping consumer-facing productsStrong communication skills and ability to collaborate effectively with cross-functional teamsUnderstanding of performance optimization ...

z2bz0 years of full-stack experience Strong product instincts — you think about the why as much as the how Frontend excellence: React, TypeScript Backend proficiency: Node.js/NestJS or Python/FastAPI Solid understanding of distributed systems patterns and when to apply them Experience working alongside design functions and translating … impact is visible in how clinicians work every day. Our stack GCP · GKE · Terraform · GitOps & ArgoCD · PostgreSQL + Redis · TypeScript across the stack (React, NestJS) · Python/FastAPI for ML workloads · Pub/Sub for events · Self-hosted ML models What we offer 28 days holiday + bank holidays Latest ...