51 to 75 of 85 Front-End Engineer (Client-Side Engineer) Jobs in London

personal growth, and providing our team with resources to succeed. Ready to shape the future? Let's talk. We're looking for a seasoned SRE with a front-end focus, expert in React applications, to join our SRE team. In this role, you'll ensure the reliability, performance, and operability of our React-based user interfaces … running on AWS and Kubernetes. You'll lead incident response for client-side issues, diagnose end-to-end failures in the stack, and build tooling to automate detection and self-healing. Key Responsibilities Incident Response & Troubleshooting Act as primary on-call for React application incidents: crashes, memory leaks, performance regressions, or deployment … AWS , and Kubernetes layers. Orchestrate post-incident reviews: document findings, define mitigation plans, and drive tickets to resolution. Reliability Engineering & Automation Develop and maintain robust observability for front-end components: integrate Datadog for observability. Define SLIs/SLOs for page load times, Time to Interactive, and error rates; build alerting that balances sensitivity with noise reduction. More ❯

Staff Frontend Engineer (Vue.JS) Up to £115,000 Remote - London | High-Growth SaaS Scale-Up Are you a frontend specialist ready to take the lead on complex, high-impact user experiences? I'm hiring for a Staff Frontend Engineer to join a cutting-edge B2B SaaS company that's reimagining how professionals More ❯

Junior Frontend Software Engineer - Remote (UK-Based) Location: Greater London, UK 100% Remote Compensation: Competitive Salary + Stock Options Build Scalable UI & Explore AI Innovation at Skedulo Skedulo powers mobile workforce operations for deskless professionals worldwide. As a Junior Frontend Engineer, you'll learn rapidly, contribute directly to AI features, and shape More ❯

Staff Frontend Engineer Location: Remote (UK-based) Salary: Up to £115,000 We're working with our client, a fast-growing SaaS company founded by serial entrepreneurs, to recruit a Staff Frontend Engineer. Their platform is transforming how leading professional services firms interact with complex data-think Figma for financial, legal, and consulting workflows. More ❯

position. We currently have a number of remote engineers based in the UK, Germany, Turkey, Poland, Italy, Spain and Portugal. We're looking for an experienced frontend engineer to join the engineering team. You'll be working alongside a highly technical and motivated team and report to one of our Tech Leads. You would be expected … requirements for improved or new features Write technical documentation of code, algorithms and APIs Help in drafting of end-user manuals Identify, evaluate and communicate front-end best practices. Skills Expert level knowledge of TypeScript or JavaScript (ES6), and most common Styling libraries. Strong grasp of the React Framework, relative patterns and best practices. … Good understanding of UI/UX best practices and considerations. Understanding of front-end observability with tools like Sentry, LogRocket, Datadog, or New Relic. Experience with CI/CD pipelines, like Github Actions, ArgoCD. Awareness of common front-end security risks (e.g., XSS, CSRF). Passion for writing clean, modular, scalable, well More ❯

and automated marketing through mobile apps and advanced integrations with major tech brands including Instagram , Facebook and Google. Role overview Fresha is seeking an experienced Principal Frontend Engineer who can lead the frontend guild, provide mentorship and vision for our frontend engineers, and drive the overall quality and productivity across the entire organisation. The ideal candidate More ❯

need your skills to support us on this exciting journey! Don't look back and submit your application before the opportunity passes you by Job title: Frontend Engineer Department: Technology Who we are We're part of Super Group, the NYSE-listed digital gaming company behind some of the world's leading Sports and iGaming brands. … expect you to bring your A-game. In return, you'll find a supportive environment where your skills can flourish and your career can soar. The Frontend Engineer works as part of a self-organising agile team, using various web-focused technology to deliver a cutting-edge experience to our users. Ready to become a game More ❯

Frontend Engineer - London Live shows make us feel good. They're a time to hang with our friends, discover new artists or lose ourselves on a dancefloor. We're on a mission to bring all of this to more fans, more often - and that's where you come in. We're looking for a highly skilled … and curious Frontend Engineer to join our Product, Design & Engineering team and help more fans get to shows they love. At DICE, you'll be part of the company that's redefining live entertainment. It's a place where you can be yourself, influence the culture, and create work that you're proud of. About the … role As a Frontend Engineer, you'll be working with the Product, Design & Engineering team to build web apps that delight fans and provide partners a great experience. You'll be developing our event discovery, ticketing and event management products. Our team is global, although our core is based out of our London offices, where we More ❯

smartphone to, literally, have a say on the most important decisions - ranging from workplace strategy to new product offerings. Remote (EU) (GMT +- 3 hours) Staff FE Engineer Responsibilities As a Staff FE Engineer at Natter, you'll: You'll be stepping into a role that offers not only technical challenges but More ❯

Mid Level Frontend Engineer (React/React Native) Office: London Apply for this role 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 More ❯

we are continuing to onboard some huge names in the mortgage industry and are looking to expand our team. The role: We are looking for a lead front-end developer that wants to help both make the home buyer process better and build a great frontend engineering team . Your role will be to work closely … with other front-end developers and the broader engineering organisation to deliver a smooth and seamless user experience for Acre. You will be highly motivated, be technology agnostic, and be passionate and proud of the work you produce. Our team believes in user-centric product design, and you will be building an iconic, beautiful system unlike … Passionate about software engineering and about delivering a quality product. Enjoy creating beautiful and enjoyable user interfaces that delight users. Have an excellent understanding and experience with client-side JavaScript (Typescript), React, and of course CSS and HTML. Committed to using automated testing platforms and unit tests to deliver readable, maintainable code. Proficient with issue management More ❯

marketing: Accelerating the migration of CRM platforms which provides enhanced efficiency in delivering targeted communication to help drive CTR The role: We are looking for a thoughtful engineer who loves creating smart, user-friendly tech. You care about code quality and collaboration and enjoy solving real-world business problems. You've worked in fast-paced teams More ❯

Senior Fullstack Engineer - Digital Scale-Up £450-£500/day Outside IR35 Hybrid - 1 day/week in London 3-month contract (likely to extend) We're hiring Senior Fullstack Engineers for a rapidly growing digital company expand its London team. This is an exciting opportunity to join a scale-up focused on improving user experience More ❯

Casey Neistat, and Kevin Lin (Twitch), we've grown from startup to global challenger in just a few years. The Role: As a Senior Front End Engineer for the direct to consumer (DTC) Platform Team, you'll play a crucial role in designing and developing innovative features for our website, including e …/Developer in a high-growth, fast-paced environment, with the ability to quickly adapt new technologies to our platform Proficiency in both front-end and back-end technologies, including frameworks like React, Angular, Node.js, and databases such as MongoDB or PostgreSQL Experience with e-commerce platforms and a strong More ❯

fixed income system evolution, and ensure strategic tech integration. Enjoy flexible work, ongoing training, and a supportive, inclusive environment. Key Responsibilities: Design and develop modern, high-performance front-end applications using React and TypeScript, ensuring they meet the demanding needs of real-time trading environments. Plan and deliver solutions that align with business goals and support … intricate trading workflows Build resilient and maintainable user interfaces by implementing comprehensive testing strategies and code reviews Ensure that all front-end components are well-architected, scalable, and integrate seamlessly Collaborate effectively with cross-functional teams-including traders, backend engineers, and product managers Contribute actively to the decommissioning of legacy systems by facilitating the adoption of … gather requirements, provide technical guidance, and ensure that delivered solutions address real-world challenges faced by end users. Key Requirements: Demonstrated expertise in developing sophisticated front-end applications using React.js, JavaScript/TypeScript Proven experience building real-time trading or financial applications where high performance and low latency are essential for business success. Comprehensive More ❯

Software Engineer I - Frontend Focus (Viator) Oxford or London, UK Viator, a Tripadvisor company, is the leading marketplace for travel experiences. We believe that making memories is what travel is all about. And with 300,000+ travel experiences to explore-everything from simple tours to extreme adventures (and all the niche, interesting stuff in between)-making … our inventory. We provide the tools which help our customer services team provide world class service to travellers and operators internationally. We're looking for a Software Engineer I Frontend Focus to join our fast-growing team. Viator is a remote first company. This role is open to candidates based in Oxford or London in the More ❯

Mintago is looking for a Senior Frontend engineer (individual contributor) to join our growing team. We're building sleek, responsive web applications with cutting-edge technologies and frameworks underpinned by TypeScript and React. You will join Mintago at the start of its engineering journey. As a crucial member of our team, you will make decisions that … A strong drive to build scalable and performant software Increasing quality through best practice and high quality tooling Skills we'd like you to have Expert TypeScript engineer with a strong understanding of React Experienced with NextJS, preferably app router You consider unit testing a key part of software delivery You have used testing libraries such More ❯

passive income, regardless of their investment experience or the amount of capital they have to invest. We're looking for a passionate and detail-oriented Sr Frontend Engineer with a strong interest in Web3 technologies to join our team. In this role, you'll build responsive, high-performance user interfaces that interact with Solana-based smart More ❯

the challenges we are likely to encounter in 6-12 months' time. What we're looking for: At least seven (7) years of experience as a software engineer, at least 3 on the senior/lead level. You have experience in a high-performing engineering team that is operating at scale. This could come from a More ❯

Software Engineer II - Frontend Focus (Viator) Oxford or London, UK Viator, a Tripadvisor company, is the leading marketplace for travel experiences. We believe that making memories is what travel is all about. And with 300,000+ travel experiences to explore-everything from simple tours to extreme adventures (and all the niche, interesting stuff in between)-making … our inventory. We provide the tools which help our customer services team provide world class service to travellers and operators internationally. We're looking for a Software Engineer II to join our fast-growing team. This role is open to candidates based within a commutable distance (generally within 2-3 hours) of one of our office More ❯

Software Engineer II - Frontend Focus (Viator) Oxford or London, UK Viator, a Tripadvisor company, is the leading marketplace for travel experiences. We believe that making memories is what travel is all about. And with 300,000+ travel experiences to explore-everything from simple tours to extreme adventures (and all the niche, interesting stuff in between)-making … our inventory. We provide the tools which help our customer services team provide world class service to travellers and operators internationally. We're looking for a Software Engineer II to join our fast-growing team. This role is open to candidates based within a commutable distance (generally within 2-3 hours) of one of our office More ❯

real-time accounting. We're founded by two experienced entrepreneurs: David Tuck , an accountant then CFO by training who founded Chaser; and James Scott-Griffin , a software engineer who was CTO at Idio (now Optimizely) and Rungway. We've had a brilliant first four years. We've built an incredible initial team in the UK and … ok if you aren't - we're looking for great people, so your experience is more valuable than the specifics. About You You're an experienced frontend engineer with multiple years of working in startups; You have a strong, pragmatic problem solving mindset; You're comfortable working both collaboratively and on your own as location and More ❯

ll work closely with product teams to build and optimise highly responsive, secure, and scalable web applications using the latest in frontend technology. As the Senior Frontend Engineer, you'll guide your team through the development of new interactive features and integrations with backend services using tools like gRPC Gateway and Protocol Buffers. You'll ensure More ❯

re a fast-moving, deeply technical team building the future of retail intelligence, one image at a time. The Role We're looking for a Senior Frontend Engineer to help shape and scale the way customers and field teams interact with our platform-across both web and iOS . You'll take full ownership of frontend More ❯

Role: Frontend Software Engineer (Data Experience) Reports to: Software Delivery Manager Work location: Anywhere, 100% remote in the UK About YouGov YouGov is a global online research company, offering insight into what the world thinks. We speak daily to our panel of over 24 million registered members to understand opinion and behaviors around the world. We … Europe, the Nordics, the Middle East, India, and Asia Pacific, YouGov has one of the world's largest research networks. About the Crunch Team The Frontend Software Engineer role in the Data Experience tribe will work within the Crunch team. Crunch is the core web application for our syndicated data products, custom research, and first-party More ❯