react jobs in London

React Developer (remote, Asian Time zone)A competition agency we are currently working with is looking for an experience React and React Native developer to join the team working remotely from anywhere in the world!The main tasks for the role will be to help build and maintain both web and mobile applications for the completion site.The technical stack you...

Our client are a global consulting firm, working on a project in the Payments domain, they are on the lookout for a Frontend (React) leaning full stack engineer to come in on a contract basis.Key Skills/Requirements:Strong ReactJS experience (Hooks, State Management)Experience with REST API integration and Front End tooling (Webpack, etc.)Familiarity with...

Trading 212 Ltd. in London is seeking a Staff Frontend Engineer to shape architecture and engineering direction across product teams while remaining close to the code. Your scope will include shared libraries, platform capabilities, developer tooling and difficult product-system problems.This is not a people-management role. Its leverage comes from technical...

Senior Frontend Engineer (React/React Native) Office: London About the company Emma is the app to manage all things money. Our mission is to empower millions of people to live a better and more fulfilling financial life. Emma was founded by engineers, who are extremely focused on coding, product and data. These are the three pillars on which we want to build...

Senior Frontend Developer (React & React Native)Senior Frontend Developer (React & React Native)Are you ready to take your React and React Native skills to the next level?All you need is:7+ years of experience as a Front-End Engineer;Strong proficiency in React 18+, including hooks, context, and modern patterns;Expert-level TypeScript experience with...

Trading-21 is seeking a Staff Frontend Engineer to shape architecture and engineering direction across product teams, spanning web and mobile using React, React Native, and an Nx monorepo. You will work closely with cross-team stakeholders on shared libraries, platform capabilities, and developer tooling to raise quality at scale.You will remain hands-on to...

Flagstone is seeking a Staff Engineer focused on frontend and mobile to set technical strategy across a small tribe of squads, driving high-quality React and React Native systems and influencing architecture. You will mentor engineers, shape our design system, and partner with Product to deliver scalable, secure solutions.Join a culture that blends...

Rullion is seeking a Senior Frontend Developer (React Native) to lead complex frontend initiatives in a fast-paced engineering environment in London. You will own critical frontend systems, mentor engineers, and drive technical strategy while balancing performance and maintainability.The role offers a 6-month contract with hybrid work (1 office day) based in...

HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life...

Few&Far, Greater London, England, United Kingdom Base pay range Founding Mobile Engineer - React Native / Consumer Fintech - London (3–4 days onsite) £90-120k + equity - greenfield We’re working with an early-stage consumer fintech building a new kind of personal finance product; one that focuses on clarity, habits, and long-term financial health rather...

LinkedTrade Technologies is a leading SaaS multi-issuer platform that transforms the structured products industry. Built on the latest technologies, LinkedTrade is a hub that connects private banks, asset managers and distributors to all the issuers and investment banks and offers end-to-end automation for the conception, pricing, execution, and monitoring...

Frontend Software Engineer - React & TypeScriptLondon (1-2 days p/w in office)Edge AI StartupSalary - £65,000-£75,000(Depending on experience)We're working with a growing technology company developing software that combines AI, data and connected systems to solve complex real-world problems.We're looking for an experienced Frontend Software Engineer to...

The Opportunity Voy is a fast growing Healthtech scale-up, aiming to be the healthcare provider that millions of people trust as their partner to a long and healthy life. Our platform allows users to quickly and safely diagnose possible conditions, get treatment and support them afterwards to live a higher quality life. To do this, we are building an...

# React UI Developer at N Consulting LtdWork mode: Hybrid, 3 days WFO Contract duration: 12 months Location: London --------------------------------------- JOB DETAILS Role Title: React UI Developer Required Core Skills: React , TypeScript Minimum years of experience: 8+ years Detailed Job Description: - Design front-end components...

London, United Kingdom | Posted on 29/09/2025 The employer is a cryptocurrency launchpad for the Solana blockchain that enables users to create tokens and trade them immediately on the platform, as well as to launch them onto decentralized exchanges. With over 6 million meme coins launched on the platform, it is one of the fastest-growing crypto applications...

This is a broad, high-impact engineering role for someone who enjoys working across the full stack, taking ownership of complex product development and helping shape engineering practices across a team. The opportunity You’ll be working on core platforms and data products used by thousands of clients helping turn complex data into clear, actionable...

We are seeking a highly skilled Senior React Engineer to join a front-office technology team responsible for building next-generation electronic trading and market data applications. This is an opportunity to work on highly performant, real-time systems used by traders and sales teams globally. You'll be responsible for building responsive, data-intensive...

numi is seeking a Frontend Developer to own apps used by venue owners and players. You will build features across React web apps and React Native iOS/Android apps, turning Figma designs into shared components and handling the end-to-end mobile release process.You’ll work with Auth0, Stripe, REST APIs and modern state management, with access to a CTO-led...

Gamingtec in London is seeking a Senior Frontend Developer (React & React Native) to lead frontend engineering across web and mobile platforms. You will own UI quality, collaborate with product and back-end teams, and ship robust SPA/ PWA experiences with modern tooling.You should have 7+ years as a Front-End Engineer, mastery of React 18+ with TS,...

Zilch is seeking an FE Software Engineer IV to drive the mobile experience across iOS and Android using React Native. You will craft high‑quality code, lead technical design, and focus on performance, security, and reliability.With 6+ years in software, you will champion best practices, collaborate with backend teams, and push for improvements in testing,...