1 to 25 of 145 Front-End Engineer (Client-Side Engineer) Jobs in the UK

We're looking for a Webflow Frontend Engineer to join a leading global advisory firm in Central London. You'll be part of a small, high-performing Design & Technology team building and maintaining world-class websites for some of the world's most recognised brands. What you'll be doing: • Building responsive, accessible websites in Webflow … React, or motion design principles Details: £65,000 per annum Central London (2 days onsite) 12-month fixed term (maternity cover) If you're a detail-driven engineer who loves crafting clean, accessible, and visually polished digital experiences - this one's worth a look. More ❯

Role : Front-End Engineer within Quant/Research Location : London (Hybrid) Comp : Up to £175,000 + exceptional guaranteed bonus + full package Company : Award-winning Quant Fund, founded by Computer Scientists Why this stands out: Tech Lead is not only an absolute/distinguished beast but one of the nicest people … flat structured, elite team = real & visible impact Beautiful offices with all the expected perks like food, gyms etc What you will be working on: Building next-gen front-end systems powering real-time trading Crafting interactive dashboards and research tools with live insights and streaming data Working with the quants to turn complex models into intuitive … powered interfaces for instant updates Applying modern React patterns, component architecture, and performance optimisations to mission-critical apps Shaping the future of trading interfaces, using the latest front-end tech to solve unique quant challenges Innovating! Ideal background: Minimum 1 year+ experience with React/TypeScript/Next.js etc Ideally someone Python Solid CompSci fundamentals (degree More ❯

Front End Engineer/Developer (React v19 TypeScript) London/WFH to £95k Are you a Front End technologist looking for an opportunity to progress your career in a hands-on role with lots of learning opportunities? You could be joining a Hedge Fund with complex work and … substantial bonus earning potential. As a Front End Engineer you'll join a globally distributed team to develop engaging and simple user interfaces across all internal business systems. You'll collaborate with UX and Product teams, actively participating in all stages of a project, through product design, development, implementation, testing and maintenance. … are degree educated, having achieved a 2.1 or above in Computer Science or similar technical discipline What's in it for you: As a Front End Engineer you will receive a competitive package: Salary to £95k Bonus Pension Self development and career progression opportunities Apply now to find out more about this More ❯

Duration: 3 Months – Possible extension Location : UK- Remote Key Responsibilities: Develop a high-performance 3D brain visualization tool in the browser using WebGL and Three.js . Build and maintain React components to enable user interaction with different types of media More ❯

Role : Front-End Engineer within Quant/Research 📍 Location : London (Hybrid) 💰 Comp : Up to £175,000 + exceptional guaranteed bonus + full package 🏆 Company : Award-winning Quant Fund, founded by Computer Scientists Why this stands out: Tech Lead is not only an absolute/distinguished beast but one of the nicest people...probably … flat structured, elite team = real & visible impact Beautiful offices with all the expected perks like food, gyms etc What you will be working on: Building next-gen front-end systems powering real-time trading Crafting interactive dashboards and research tools with live insights and streaming data Working with the quants to turn complex models into intuitive … powered interfaces for instant updates Applying modern React patterns, component architecture, and performance optimisations to mission-critical apps Shaping the future of trading interfaces, using the latest front-end tech to solve unique quant challenges Innovating! Ideal background: Minimum 1 year+ experience with React/TypeScript/Next.js etc Ideally someone Python Solid CompSci fundamentals (degree More ❯

Role : Front-End Engineer within Quant/Research 📍 Location : London (Hybrid) 💰 Comp : Up to £175,000 + exceptional guaranteed bonus + full package 🏆 Company : Award-winning Quant Fund, founded by Computer Scientists Why this stands out: Tech Lead is not only an absolute/distinguished beast but one of the nicest people...probably … flat structured, elite team = real & visible impact Beautiful offices with all the expected perks like food, gyms etc What you will be working on: Building next-gen front-end systems powering real-time trading Crafting interactive dashboards and research tools with live insights and streaming data Working with the quants to turn complex models into intuitive … powered interfaces for instant updates Applying modern React patterns, component architecture, and performance optimisations to mission-critical apps Shaping the future of trading interfaces, using the latest front-end tech to solve unique quant challenges Innovating! Ideal background: Minimum 1 year+ experience with React/TypeScript/Next.js etc Ideally someone Python Solid CompSci fundamentals (degree More ❯

however, you are not required or expected to have background in Machine Learning. This is a senior-level role, and we are looking to hire a software engineer with background in product design, UI/UX design, and with a strong sense of aesthetics. Portfolio We would love to see your recent frontend works! If possible … with a startup work environment and wider ecosystem. Why join us? Work in an environment conducting cutting-edge research in AI. An official role title of “Founding Engineer” – make an impact on day one. Competitive salary, equity and benefits package. 28 days + public holidays allowance. Opportunities for professional growth and progression with your career. Work More ❯

however, you are not required or expected to have background in Machine Learning. This is a senior-level role, and we are looking to hire a software engineer with background in product design, UI/UX design, and with a strong sense of aesthetics. Portfolio We would love to see your recent frontend works! If possible … with a startup work environment and wider ecosystem. Why join us? Work in an environment conducting cutting-edge research in AI. An official role title of “Founding Engineer” – make an impact on day one. Competitive salary, equity and benefits package. 28 days + public holidays allowance. Opportunities for professional growth and progression with your career. Work More ❯

DuckDB, WebGPU) · D3/visx · Storybook · Tailwind CSS · Jest · Cypress · Playwright What You Bring 8+ years building and evolving large-scale web applications. Proven track record in front-end architecture (modular codebases, micro-frontends, design systems, scalability). Strong portfolio of data-heavy, real-time UIs and reusable component libraries. Expertise in TypeScript, CSS methodologies (Tailwind … in-JS), and modern testing frameworks. Passion for developer experience, tooling, and mentoring. Degree in Computer Science or equivalent experience. Bonus points for: Open source contributions to front-end tooling, design systems, or data-visualisation libraries. Experience with WebSockets, PWAs, offline support, or design-token pipelines. How They Work Speed with craftsmanship: Continuous delivery, short feedback … Why Apply? This is a chance to join a hyper-growth company at the forefront of AI-powered collaboration, tackling some of the most exciting challenges in front-end engineering today. Interested? Reach out to Stax for a confidential discussion. Please be advised that, owing to the expected volume of applications, we may only be able More ❯

DuckDB, WebGPU) · D3/visx · Storybook · Tailwind CSS · Jest · Cypress · Playwright What You Bring 8+ years building and evolving large-scale web applications. Proven track record in front-end architecture (modular codebases, micro-frontends, design systems, scalability). Strong portfolio of data-heavy, real-time UIs and reusable component libraries. Expertise in TypeScript, CSS methodologies (Tailwind … in-JS), and modern testing frameworks. Passion for developer experience, tooling, and mentoring. Degree in Computer Science or equivalent experience. Bonus points for: Open source contributions to front-end tooling, design systems, or data-visualisation libraries. Experience with WebSockets, PWAs, offline support, or design-token pipelines. How They Work Speed with craftsmanship: Continuous delivery, short feedback … Why Apply? This is a chance to join a hyper-growth company at the forefront of AI-powered collaboration, tackling some of the most exciting challenges in front-end engineering today. Interested? Reach out to Stax for a confidential discussion. Please be advised that, owing to the expected volume of applications, we may only be able More ❯

engineering. Our products are redefining experiences within the industry, so help us reach our goals while we help you reach yours! We’re seeking a Senior Frontend Engineer to join our UI Engineering team. This team is focused on providing frontend solutions to multiple projects and tooling to the whole company. We are deeply committed to … our Design Systems, and collaborating with backend teams to deliver consistent, reliable, and user-friendly experiences across the platform. What You Will Do As a Senior Frontend Engineer, you will join our globally distributed team to shape and elevate Cint’s Measurement, Survey Platform, and Design System experiences. Your mission is to craft high-quality, scalable … research products delivering intuitive experiences for our customers while also enabling internal teams to move faster with confidence. You will be a product-oriented and platform UI engineer, taking full ownership of the end-to-user experience. This includes partnering closely with UX designers, product managers, and fellow engineers to understand customer and stakeholder More ❯

Senior Frontend Engineer – Join a profitable FinTech Scale-Up 🚀 💰Up to £110,000 🏡Remote working – once a month onsite in London 💻React, TypeScript, API experience We’re partnered with a leading FinTech scale-up who are transforming how small businesses access finance to grow and scale. The business is backed by a strong track record and … Frontend Engineer as the business continues to scale. What will you be doing: Be responsible for taking ownership of projects and running the front-end development for their customers Build the interfaces that allow customers to choose between different products to best find the product that meets their requirements Implement robust A More ❯

Front End Engineer (Product focus for AI) - Perm £115 - £130K basic + equity Central London (On-Site, 5 Days a Week) £115 - £130K basic + meaningul equity Backed by the biggest name in AI Investment $6M of recent funding Very quick feedback and process! About the Company An AI company on a … to power the next wave of innovation. Our culture values hands-on collaboration, experimentation, and fast iteration. About the Position We’re hiring a Front End Engineer who’s excited about blending solid product engineering with applied AI research. You’ll work closely with product and research teams to design, prototype, and … and ambitious goals. Curious, resourceful, and eager to learn about emerging AI technologies. Bonus: experience with large language models, AI frameworks, or prompt engineering. Front End Engineer (Product focus for AI) - Perm £115 - £130K basic + equity More ❯

Front End Engineer (Product focus for AI) - Perm £115 - £130K basic + equity Central London (On-Site, 5 Days a Week) £115 - £130K basic + meaningul equity Backed by the biggest name in AI Investment $6M of recent funding Very quick feedback and process! About the Company An AI company on a … to power the next wave of innovation. Our culture values hands-on collaboration, experimentation, and fast iteration. About the Position We’re hiring a Front End Engineer who’s excited about blending solid product engineering with applied AI research. You’ll work closely with product and research teams to design, prototype, and … and ambitious goals. Curious, resourceful, and eager to learn about emerging AI technologies. Bonus: experience with large language models, AI frameworks, or prompt engineering. Front End Engineer (Product focus for AI) - Perm £115 - £130K basic + equity More ❯

We’re looking for a Webflow Frontend Engineer to join a leading global advisory firm in Central London. You’ll be part of a small, high-performing Design & Technology team building and maintaining world-class websites for some of the world’s most recognised brands. What you’ll be doing: • Building responsive, accessible websites in Webflow … React, or motion design principles Details: 💰 £65,000 per annum 📍 Central London (2 days onsite) 🕐 12-month fixed term (maternity cover) If you’re a detail-driven engineer who loves crafting clean, accessible, and visually polished digital experiences — this one’s worth a look. More ❯

We’re looking for a Webflow Frontend Engineer to join a leading global advisory firm in Central London. You’ll be part of a small, high-performing Design & Technology team building and maintaining world-class websites for some of the world’s most recognised brands. What you’ll be doing: • Building responsive, accessible websites in Webflow … React, or motion design principles Details: 💰 £65,000 per annum 📍 Central London (2 days onsite) 🕐 12-month fixed term (maternity cover) If you’re a detail-driven engineer who loves crafting clean, accessible, and visually polished digital experiences — this one’s worth a look. More ❯

Senior Product Engineer (Frontend) 2 days a week in Central London Salary paying £90k-£105k + benefits Oliver Bernard have partnered with a high-growth, product-led tech company on the search for a Senior Product Engineer (Frontend) to take ownership of a core product area and help shape the technical and … are valuable and impactful. End-to-end ownership of projects in a lean, collaborative environment. Please apply now for more information. Senior Product Engineer (Frontend More ❯

Senior Frontend Engineer (React.js) Brand New Energy Trading Desk £130,000 + Bonus + Benefits London Hybrid I am looking for a Senior Frontend Engineer with React focus for a Trading House that build cross asset trading systems. The FinTech are building from the ground up and currently expanding their team to … completely greenfield build, payments platform. As a Senior Frontend, your role will be to come in and assess the current build, working very closely with the lead Engineer to redesign parts of the system and lead from the front in terms of the build. Responsible for developing new features for the public website and … bonus + benefits Located in London City, St Paul's, with 3 days per week from the office React.Js, React Hooks, TypeScript Responsibilities of the Senior Frontend Engineer (React.js): Designing, coding, and testing all components of modern web applications. Contribute to the overall architecture and design of the technology created/maintained by the delivery team. More ❯

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. This role is open to candidates based in Oxford or London in the UK. We embrace flexibility in where More ❯

Role : Front-End Engineer within Quant/Research 📍 Location : London (Hybrid) 💰 Comp : Up to £175,000 + exceptional guaranteed bonus + full package 🏆 Company : Award-winning Quant Fund, founded by Computer Scientists Why this stands out: Tech Lead is not only an absolute/distinguished beast but one of the nicest people...probably … flat structured, elite team = real & visible impact Beautiful offices with all the expected perks like food, gyms etc What you will be working on: Building next-gen front-end systems powering real-time trading Crafting interactive dashboards and research tools with live insights and streaming data Working with the quants to turn complex models into intuitive … powered interfaces for instant updates Applying modern React patterns, component architecture, and performance optimisations to mission-critical apps Shaping the future of trading interfaces, using the latest front-end tech to solve unique quant challenges Innovating! Ideal background: Minimum 1 year+ experience with React/TypeScript/Next.js etc Ideally someone Python Solid CompSci fundamentals (degree More ❯

Role : Front-End Engineer within Quant/Research 📍 Location : London (Hybrid) 💰 Comp : Up to £175,000 + exceptional guaranteed bonus + full package 🏆 Company : Award-winning Quant Fund, founded by Computer Scientists Why this stands out: Tech Lead is not only an absolute/distinguished beast but one of the nicest people...probably … flat structured, elite team = real & visible impact Beautiful offices with all the expected perks like food, gyms etc What you will be working on: Building next-gen front-end systems powering real-time trading Crafting interactive dashboards and research tools with live insights and streaming data Working with the quants to turn complex models into intuitive … powered interfaces for instant updates Applying modern React patterns, component architecture, and performance optimisations to mission-critical apps Shaping the future of trading interfaces, using the latest front-end tech to solve unique quant challenges Innovating! Ideal background: Minimum 1 year+ experience with React/TypeScript/Next.js etc Ideally someone Python Solid CompSci fundamentals (degree More ❯

Role : Front-End Engineer within Quant/Research 📍 Location : London (Hybrid) 💰 Comp : Up to £175,000 + exceptional guaranteed bonus + full package 🏆 Company : Award-winning Quant Fund, founded by Computer Scientists Why this stands out: Tech Lead is not only an absolute/distinguished beast but one of the nicest people...probably … flat structured, elite team = real & visible impact Beautiful offices with all the expected perks like food, gyms etc What you will be working on: Building next-gen front-end systems powering real-time trading Crafting interactive dashboards and research tools with live insights and streaming data Working with the quants to turn complex models into intuitive … powered interfaces for instant updates Applying modern React patterns, component architecture, and performance optimisations to mission-critical apps Shaping the future of trading interfaces, using the latest front-end tech to solve unique quant challenges Innovating! Ideal background: Minimum 1 year+ experience with React/TypeScript/Next.js etc Ideally someone Python Solid CompSci fundamentals (degree More ❯

About the Job Senior Frontend Engineer – London (Victoria) | Hybrid £80k - £110k Are you ready to craft the next generation of data-driven digital experiences for one of Europe’s most technically advanced SaaS innovators? Our client, a pioneer in B2B SaaS solutions , is building “Your Shipping Analytics Supercomputer” , providing cutting-edge data visualisation and … technical role that blends creativity, collaboration, and engineering excellence, ideal for someone who thrives in fast-paced, high-growth environments. What You’ll Bring 5+ years of front-end development experience building large-scale web applications. Expertise in React, TypeScript/JavaScript, HTML, and CSS . A strong appreciation for UI/UX design and a … a £100m AI start-up exit , they’re focusing all their attention on this next big venture. This is an outstanding opportunity to design and deliver the front-end of a platform that’s redefining how businesses interact with data. If you’re a passionate engineer who loves solving complex problems through More ❯

About the Job Senior Frontend Engineer – London (Victoria) | Hybrid £80k - £110k Are you ready to craft the next generation of data-driven digital experiences for one of Europe’s most technically advanced SaaS innovators? Our client, a pioneer in B2B SaaS solutions , is building “Your Shipping Analytics Supercomputer” , providing cutting-edge data visualisation and … technical role that blends creativity, collaboration, and engineering excellence, ideal for someone who thrives in fast-paced, high-growth environments. What You’ll Bring 5+ years of front-end development experience building large-scale web applications. Expertise in React, TypeScript/JavaScript, HTML, and CSS . A strong appreciation for UI/UX design and a … a £100m AI start-up exit , they’re focusing all their attention on this next big venture. This is an outstanding opportunity to design and deliver the front-end of a platform that’s redefining how businesses interact with data. If you’re a passionate engineer who loves solving complex problems through More ❯

Senior Frontend Engineer - Up to 100k - Fully Remote Morson Edge have teamed up with a well known European Tech business as they seek a number of Senior level Frontend Engineers to join a high performing team. You will translate big ideas into shippable, high quality products by collaborating closely with engineers and designers to solve complex More ❯