1 to 25 of 35 Front-End Developer (Client-Side Developer) Jobs in Central London

Job Title: Frontend Engineer – React/TypeScript/Next.js Location: London (Hybrid – 2‐3 days in office) Salary: £70,000 – £75,000 + Equity About the Company You’ll join a fast‐scaling SaaS business that’s redefining how enterprise More ❯

drive to succeed paired with a continuous hunger to learn. Leadership - You are trusted, empathetic, accountable, and empower others around you. Primary responsibilities Collaborating with designers, writing front-end code and unit tests, working on the front-end architecture Spearheading the development of our frontend stack, architecting, and building frontend projects Being … with user-experience and design team Designing and maintaining JavaScript libraries, making sure they support the creative and engineering standards of BlackRock Keeping abreast of the new front-end web development technologies; integrate them with the existing systems Understanding and supporting existing systems, and resolve operations issues while working with other engineering staff located across the … Being passionate about technology, with personal ownership for the work you do Essential skills/experience Is a must: 4+ years hands-on development experience on the front-end development with single page application frameworks like Angular, React. Hands on experience in working with TypeScript. Demonstratable experience in working with and designing REST APIs Knowledge and More ❯

Experience: React.js, Typescript, Azure Role Description: • Bachelor’s degree in computer science, Information Technology, or a related field (or equivalent work experience). • Proven experience as a Front-End Developer with a focus on React.js and Typescript. • Familiarity with C# and .Net. • Strong proficiency in JavaScript, ES6/ES7, and related front More ❯

If you need support in completing the application or if you require a different format of this document, please get in touch with at UKI.recruitment@tcs.com with the subject line: “Application Support Request”. Role: Front End More ❯

seen by thousands of people and will directly influence how high-profile brands connect with their audiences. Who we’re looking for We’re looking for a front-end developer who’s motivated, curious, and excited to create impactful e-commerce experiences. You’ll be joining at an early stage, which means … of modern JavaScript Ability to write well-structured, semantic, and accessible HTML Confidence writing framework-agnostic, performance-focused JavaScript Awareness of WCAG accessibility guidelines Solid understanding of front-end performance best practices Strong attention to detail when building polished, complex interactions A positive, problem-solving mindset and broad technical curiosity Experience with modern web tooling (transpilers … of modern and emerging browser APIs Familiarity with progressive enhancement principles Nice to have Not essential, but any of these would be a bonus: Experience with a front-end/full-stack framework like React or Remix Experience with a back-end language, framework, or backend platform like Supabase Experience setting up or running More ❯

seen by thousands of people and will directly influence how high-profile brands connect with their audiences. Who we’re looking for We’re looking for a front-end developer who’s motivated, curious, and excited to create impactful e-commerce experiences. You’ll be joining at an early stage, which means … of modern JavaScript Ability to write well-structured, semantic, and accessible HTML Confidence writing framework-agnostic, performance-focused JavaScript Awareness of WCAG accessibility guidelines Solid understanding of front-end performance best practices Strong attention to detail when building polished, complex interactions A positive, problem-solving mindset and broad technical curiosity Experience with modern web tooling (transpilers … of modern and emerging browser APIs Familiarity with progressive enhancement principles Nice to have Not essential, but any of these would be a bonus: Experience with a front-end/full-stack framework like React or Remix Experience with a back-end language, framework, or backend platform like Supabase Experience setting up or running More ❯

seen by thousands of people and will directly influence how high-profile brands connect with their audiences. Who we’re looking for We’re looking for a front-end developer who’s motivated, curious, and excited to create impactful e-commerce experiences. You’ll be joining at an early stage, which means … of modern JavaScript Ability to write well-structured, semantic, and accessible HTML Confidence writing framework-agnostic, performance-focused JavaScript Awareness of WCAG accessibility guidelines Solid understanding of front-end performance best practices Strong attention to detail when building polished, complex interactions A positive, problem-solving mindset and broad technical curiosity Experience with modern web tooling (transpilers … of modern and emerging browser APIs Familiarity with progressive enhancement principles Nice to have Not essential, but any of these would be a bonus: Experience with a front-end/full-stack framework like React or Remix Experience with a back-end language, framework, or backend platform like Supabase Experience setting up or running More ❯

I'm working with a systematic trading firm with multiple successful strategies operating globally. They have a trading team currently in need of a front office engineer to focus on real time UIs and UX development for trading More ❯

Senior Frontend Engineer £100K - £120K base + meaningful equity (think early-stage upside, not crumbs) London, onsite 4 days per week (non-negotiable) A well-funded, London-based AI startup (Series A, backed by tier 1 funds and some very More ❯

Senior Frontend Engineer London (Hybrid) Bright Purple are delighted to partner with an innovative, sustainability-focused technology company that is transforming how major organisations understand and reduce their environmental impact. Due to continued growth and enterprise demand, they’re looking More ❯

We are seeking a senior, creative Front End Developer (UI/UX Developer) to join a client in The City of London. This role will focus primarily on UI/UX design and development (60%) while also contributing to backend and full-stack solutions (40%). More ❯

Frontend Engineer | Fintech (Buy-Side) | London Location: Marylebone (on-site – 5 days/week) Stage: Early/Stealth Product: B2B Fintech Platform for Buy-Side Institutions A well-backed stealth fintech is hiring a Frontend Engineer. More ❯

Senior Frontend Engineer £60k-70k | London | Hybrid Working The Opportunity Our key client is revolutionising content management for the world's biggest retail brands. They're a UK-headquartered scale-up backed by leading private equity, working with More ❯

Dunbar Brown Group are excited to be working retained with our London based customer. We are looking for a Senior Front End Engineer to join a growing team for a business that is a market leader More ❯

💫 Company | B2B, Deep Tech, AI 📏 Size | 10 people 🌱 Stage | Seed 🧢 Role | Frontend Engineer 🪜 Level | Mid-Level ✨ Tech | TypeScript, React, TailwindCSS, WebGL, React Native 📍 Based | Spitalfields, London 💻 Working | hybrid (3-5 days a week in-office) 💰 Offer | £60-75k + More ❯

Contract | Staff Frontend Software Engineer | £600-£800/day Outside IR35 React Software Engineer £600-£800/day Initial 6 Month Duration Outside IR35 Hybrid - Central London (3 days a week) We are partnered with a well-funded scale up More ❯

Founding Engineer | AI Startup | London (Hybrid) I’m working with a profitable AI startup backed by fresh funding looking to bring on an early hire Frontend Engineer. You’ll be building and scaling complex interfaces in Vue and TypeScript , driving More ❯

I am currently working with leading digital agency in Central London who are looking for an experienced Typescript Engineer to join their growing team! The company work with a wide variety of FTSE clients across different industries, focusing on creating More ❯

UI/UX Designer & Frontend Developer – Mobile, WCAG, Adobe CC, HTML, CSS, Javascript, Blazor Outstanding opportunity to join this global enterprise and famous brand within the ‘magic circle’ of the legal sector. From a technology perspective, this organisation is a leader in its domain, significantly investing in AI and automation within an established cloud native (Azure … emerging AI powered tools being built in house. Key Responsibilities: Design and implement responsive, user-friendly interfaces for Mobile, SaaS and Microsoft Word Add-In solutions Develop front-end components using HTML, CSS, TypeScript, and Blazor within a .NET environment Collaborate with product managers, engineers and end-users to translate requirements into elegant UI … documentation and UI component libraries Required Skills & Experience: Proven creative experience in UI/UX design and wireframing tools like Figma, Blasamiq or Adobe Creative Cloud Strong front-end development skills in HTML, CSS, TypeScript, and JavaScript Hands-on experience with Blazor and .NET (C#) Extensive experience with Mobile & SaaS product development and cloud deployment (Azure More ❯

UI/UX Designer & Frontend Developer Mobile, WCAG, Adobe CC, HTML, CSS, Javascript, Blazor Outstanding opportunity to join this global enterprise and famous brand within the magic circle of the legal sector. From a technology perspective, this organisation is a leader in its domain, significantly investing in AI and automation within an established cloud native (Azure … emerging AI powered tools being built in house. Key Responsibilities: Design and implement responsive, user-friendly interfaces for Mobile, SaaS and Microsoft Word Add-In solutions Develop front-end components using HTML, CSS, TypeScript, and Blazor within a .NET environment Collaborate with product managers, engineers and end-users to translate requirements into elegant UI … documentation and UI component libraries Required Skills & Experience: Proven creative experience in UI/UX design and wireframing tools like Figma, Blasamiq or Adobe Creative Cloud Strong front-end development skills in HTML, CSS, TypeScript, and JavaScript Hands-on experience with Blazor and .NET (C#) Extensive experience with Mobile & SaaS product development and cloud deployment (Azure More ❯

software. They are undergoing a major evolution of their platform and are now seeking a talented Frontend Developer to help re-architect the front-end of their flagship product. This is an exciting opportunity to join an exceptionally skilled engineering community and have genuine architectural influence on a modern, high-impact system. … teams across the stack, including those working in C#/.NET on the backend. Key Responsibilities Lead and contribute to the re-architecture and modernisation of the front-end system Develop high-quality, scalable, and responsive UI components using React, TypeScript, and JavaScript Work collaboratively with a highly experienced engineering community Implement best practices for code … or able to commute to the London office on a hybrid schedule Why This Role Is Exciting Opportunity to own and lead the redesign of a core front-end system Work alongside exceptionally skilled engineers with deep domain expertise Join a company experiencing strong growth and technological evolution Modern tech stack and meaningful architectural responsibilities Hybrid More ❯

Are you an experienced Frontend Developer looking for a new challenge and to work for an AI startup with an important mission? 🚀 Senior Frontend Developer – AI Data Security 🚀 Location : Hybrid working 1-3 days a week in central London (King’s Cross) Salary : up to £135,000 + bonus + equity We … exciting time to join the team as they are growing across multiple areas of the business, having just secured over £17mil in funding. As a Senior Frontend Developer, you will: Have 6+ years experience as a Frontend Software Engineer Experience developing with: React, Typescript, HTML, CSS A desire to be part of an important mission Be … illness cover If you enjoy a flexible culture with the ability to work from home a few days a week, apply now for this unmissable Senior Frontend Developer opportunity now! Please note : Due to compliancy reasons, we will only be able to consider applications based in and eligible to work in the UK. More ❯

Frontend Developer - React, NodeJS and TypeScript – Up to £500/day (Outside IR35) – Hybrid (London) – 3 month contract My client is seeking an experienced Frontend Developer to join their team. You will need strong commercial experience in working with React, NodeJS and TypeScript. Essential Skills: Strong commercial experience with React More ❯

EdTech Frontend Developer – Vue/Nuxt (Mid-Level+) I am looking for a Frontend Developer with 2+ years' experience working with modern web technologies to join my clients team who are in the EdTech space! Core Skills: Vue.js & Nuxt 4 (Vite, Composition API, Pinia, Nuxt Plugins) TypeScript/JavaScript (ES6) – clean, maintainable More ❯

EdTech Frontend Developer – Vue/Nuxt (Mid-Level+) I am looking for a Frontend Developer with 2+ years' experience working with modern web technologies to join my clients team who are in the EdTech space! Core Skills: Vue.js & Nuxt 4 (Vite, Composition API, Pinia, Nuxt Plugins) TypeScript/JavaScript (ES6) – clean, maintainable More ❯