20 of 20 Front End Developer (Client-Side Developer) Jobs in London

product-led SaaS business is hiring a Front End Developer with a strong focus on Angular to help build and scale a modern, customer-facing web platform. This is a hands-on role for someone who enjoys working on complex interfaces, data … driven products and clean, well-structured front end architecture. You will work closely with product and engineering teams to deliver high quality user experiences, taking ownership of features from build through to release. This role suits someone who wants to stay deeply technical rather than move ...

travel to Croydon Duration: 12 Months Day rate: £520 Umbrella Only SC clearance required About the Role We are looking for a skilled Front-End Engineer to join our team and help build high-quality, user-focused web applications. You'll work closely with designers, product … managers, and backend engineers to deliver maintainable front-end solutions using modern web technologies. Responsibilities Build and maintain scalable front-end applications using React Develop clean, reusable, and well-structured code using TypeScript and JavaScript Translate designs and product requirements into high ...

Front End Developer 12-month Fixed-Term Contract (with potential to become permanent) Salary: Up to £45,000 per annum, dependent on experience Location: Central London (hybrid – 1–2 days per week in the office) About the role We are looking … experienced Front End Developer to join our team on a 12-month fixed-term basis . The role has been created to support current and upcoming product initiatives, with workload expected to be strong over the initial contract period. Continuation beyond this ...

team of DV Cleared technologists to help design and deliver next-generation solutions that keep our nation secure. The Opportunity As a Front-End Developer, you'll play a key role in building intuitive, high-performance user interfaces for secure government … environments. This is a hands-on technical role for someone who's passionate about modern web development, user experience, and crafting elegant, reliable front-end solutions. Key Responsibilities Develop high-quality, responsive, and accessible web applications using HTML, CSS, and JavaScript . Build interactive, user-focused ...

Senior Front-end Developer - Active SC, React, Next.js Up to £550 per day (Inside IR35 ) London/Remote 12 months My client is an instantly recognisable consultancy who urgently requires a Senior Front-end Developer with Active SC, to join a business-critical programme. Key Requirements: Proven experience working as a Front-end Developer within the public sector Active Security Clearance (SC) Solid experience with React and Next.js for Frontend development Hands ...

Position: Front End JavaScript Developer Reports to: Front End Development Team Lead Hours: 40 hours Location: 3 days in North London office (Monday – Wednesday) Salary: £60 - £80,000 + eligibility for performance bonus Start date: ASAP Purpose … thrive in an Agile environment. · Proficient in addressing cross-browser compatibility issues and employing effective strategies to resolve them. · Well-versed in front-end build tools, such as Webpack. · Skilled in utilizing code versioning tools, notably Git. · Sound understanding of browser rendering behavior and techniques ...

Front-End Developer - React, Typescript Location: Ipswich (Onsite, 5 days per week) Contract Duration: 7 months IR35 Status: Inside IR35 About the Role My client, a leading global tech company , is looking for an experienced Front-End … collaborative development activities Essential Skills & Experience Strong proficiency in TypeScript and React Experience with Agile methodologies and tools like JIRA Solid understanding of front-end architecture and best practices Ability to write automated tests and maintain high-quality code Excellent communication and collaboration skills ...

payments/fintech business modernising its customer‐facing platforms and internal tools. You’ll be one of the go‐to engineers for the front end, shaping how customers and partners experience the product. The role This is a hands‐on senior Vue.js role with real ownership … front‐end stack. You’ll evolve and scale existing platforms, lead on new greenfield builds and set standards for code quality, performance and front‐end architecture. What you’ll do Design, build and ship modern PWAs, web apps and sites using Vue.js ...

Senior Front-end Developer - Active SC, React, Next.js Up to £550 per day (Inside IR35 ) London/Remote 12 months My client is an instantly recognisable consultancy who urgently requires a Senior Front-end Developer ...

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 … 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 ...

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 … 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 ...

Front-End Developer (SC clearance required) Start Date: ASAPRole Duration: 1 year£500/day Inside IR-35Location: Remote with occasional travel to Croydon OverviewThis position is part of a major public sector programme focused on building secure, user-friendly interfaces … technologies to deliver responsive and accessible solutions. Required Skills* React* TypeScript/JavaScript (when used in the browser) Nice to Have Skills* Playwright (front-end testing) Reasonable Adjustments: Respect and equality are core values to us. We are proud of the diverse and inclusive community ...

Role: Front End Developer Location: Remote - Occasional … travel to Croydon Duration: 12 Months Day rate: £520 Umbrella Only SC clearance required About the Role We are looking for a skilled Front-End Engineer to join our team and help build high-quality, user-focused web applications click apply for full job details ...

saying they're building the financial future and it needs to not look like crap. They're looking for a Senior Front End Engineer who understands that in DeFi, the "Front End" is the only "End" most users will ever ...

build something great. The Role & Culture We are a team that prioritizes delivery over desk-time . We are looking for a developer who takes pride in their work and understands the "startup rhythm." We don't watch the clock, but we do expect our team ...

Senior Frontend Developer Up to £90,000 Central London - Flexible Hybrid Options Health-Tech A start-up within the health space are seeking a Senior Frontend Developer to lead a high performing squad of engineers building a unique SAAS platform which … with the company This is an exciting opportunity to work on impactful projects in a forward-thinking environment. If you are passionate about front-end development, we’d love to hear from ...

welcomed and supported by some truly talented people, in a company that is constantly innovating. We are looking for a Senior Frontend Developer, based in the UK. This role will involve building and maintaining our new website platform using Next.js, React, TypeScript, TailwindCSS and MongoDB. … Getting involved with team-building during stand-ups, retros and team discussions We're looking for someone who has 5+ years' experience in front end web development Strong competency with TypeScript, React and Next.js Strong problem solving and debugging ability Good understanding of performance, optimisation ...

Senior Frontend Engineer - London Based 🚀 They've been named a Disruptor in the industry for their mission that is putting users in control of how their data is being used! I'm now looking for ...

Frontend Developer Up to £70,000 + Bonus Central London – Flexible Hybrid Options Health-Tech A fast-growing healthtech company is seeking a Frontend Developer to help build a user-centric SaaS platform transforming pharmaceutical R&D. You’ll contribute … architecture, advance component systems, and collaborate closely with product and design to elevate usability and responsiveness. As a Frontend Developer, you will have: Strong commercial experience in React with TypeScript Exposure to UI/UX principles and design collaboration Background in healthtech or data-driven applications ...

next 2 weeks. The Role Build and maintain scalable, high-performance frontend applications Work closely with cross-functional teams to deliver projects end-to-end Contribute to technical decisions and frontend architecture Ensure best practices around code quality, performance, and accessibility Required Experience Strong commercial experience ...