1 to 25 of 104 Front-End Engineer (Client-Side Engineer) Jobs in the UK

FRONT END ENGINEER (AI/… ML START UP COMPANY) UP TO 75k LONDON - HYBRID (2 DAYS A WEEK) React, Javascript, Typescript, GraphQL, TDD, CSS, HTML A start-up company is hiring a Front-End Engineer to join their growing team to work on R&D projects in Machine Learning and Data Visualisation. They are looking for a … front-end engineer that is seeking career progression to more senior roles at a faster pace than most. THE ROLE: As a Front-End Engineer, you will have an expansive range of responsibilities, including: Design, development and upkeep of required software using React. Design More ❯

Front-End Engineer (Javascript/React) 100% Remote (UK-based) Up to 55,000 | Full-Time About the Role Our HealthTech client is building a cohesive, high-performing in-house engineering team to power their growing technology suite from web applications and analytics dashboards to AI-driven tools and internal … systems. Theyre looking for a Front-End Engineer (React) whos passionate about building intuitive, high-quality interfaces and crafting experiences that genuinely improve peoples lives. What Youll Do Collaborate with engineers, designers, and product leads to create beautiful, responsive web applications Build and maintain front-end features using … React , JavaScript , and modern frameworks Contribute to UI design, component libraries, and front-end architecture decisions Implement best practices for performance, accessibility, and maintainable code Integrate APIs and work closely with backend engineers to deliver seamless user experiences Help standardise front-end tools, workflows, and design systems What Were Looking For Strong More ❯

Front-End Engineer (Javascript/React) 🌍 100% Remote (UK-based) 💰 Up to £55,000 | Full-Time About the Role Our HealthTech client is building a cohesive, high-performing in-house engineering team to power their growing technology suite — from web applications and analytics dashboards to AI-driven tools and internal … systems. They’re looking for a Front-End Engineer (React) who’s passionate about building intuitive, high-quality interfaces and crafting experiences that genuinely improve people’s lives. What You’ll Do Collaborate with engineers, designers, and product leads to create beautiful, responsive web applications Build and maintain front-end features using React , JavaScript , and modern frameworks Contribute to UI design, component libraries, and front-end architecture decisions Implement best practices for performance, accessibility, and maintainable code Integrate APIs and work closely with backend engineers to deliver seamless user experiences Help standardise front-end tools, workflows, and design systems What More ❯

Senior Front-End Engineer (React) Manchester/Hybrid Up to £70,000 + excellent benefits Build Products That Scale. Shape the Future of Engineering. We’re partnering with a global digital platform business on the hunt for a Senior Front-End Engineer (React) to … culture that gives engineers space to challenge, experiment, and deliver. What You’ll Be Doing Designing and building performant, scalable, and intuitive UIs using React and modern front-end tooling. Collaborating closely with engineers, designers, and product managers to deliver high-impact features. Writing clean, testable, maintainable code with a focus on performance and accessibility. Helping … environment with CI/CD, automated testing, and code reviews at the core. What We’re Looking For Deep expertise in React , JavaScript/TypeScript, and modern front-end frameworks. Experience working with RESTful APIs and building rich, data-driven interfaces. Knowledge of cloud environments (Azure or AWS) and CI/CD pipelines (GitHub Actions, Jenkins More ❯

Senior Front-End Engineer (React) Manchester/Hybrid Up to £70,000 + excellent benefits Build Products That Scale. Shape the Future of Engineering. We’re partnering with a global digital platform business on the hunt for a Senior Front-End Engineer (React) to … culture that gives engineers space to challenge, experiment, and deliver. What You’ll Be Doing Designing and building performant, scalable, and intuitive UIs using React and modern front-end tooling. Collaborating closely with engineers, designers, and product managers to deliver high-impact features. Writing clean, testable, maintainable code with a focus on performance and accessibility. Helping … environment with CI/CD, automated testing, and code reviews at the core. What We’re Looking For Deep expertise in React , JavaScript/TypeScript, and modern front-end frameworks. Experience working with RESTful APIs and building rich, data-driven interfaces. Knowledge of cloud environments (Azure or AWS) and CI/CD pipelines (GitHub Actions, Jenkins More ❯

Senior Front-End Engineer (React) Manchester/Hybrid Up to £70,000 + excellent benefits Build Products That Scale. Shape the Future of Engineering. We’re partnering with a global digital platform business on the hunt for a Senior Front-End Engineer (React) to … culture that gives engineers space to challenge, experiment, and deliver. What You’ll Be Doing Designing and building performant, scalable, and intuitive UIs using React and modern front-end tooling. Collaborating closely with engineers, designers, and product managers to deliver high-impact features. Writing clean, testable, maintainable code with a focus on performance and accessibility. Helping … environment with CI/CD, automated testing, and code reviews at the core. What We’re Looking For Deep expertise in React , JavaScript/TypeScript, and modern front-end frameworks. Experience working with RESTful APIs and building rich, data-driven interfaces. Knowledge of cloud environments (Azure or AWS) and CI/CD pipelines (GitHub Actions, Jenkins More ❯

Senior Software Engineer lI (Front-end focused) page is loaded Senior Software Engineer lI (Front-end focused)remote type: Remotelocations: Remote - Spain: Edinburghtime type: Full timeposted on: Posted Todayjob requisition id: R-100889We're UserTesting-the leader in human insight. Our mission is to … a passionate group focused on transforming how companies understand and connect with their customers.Let's build experiences people love-together.# About this opportunity: As a Senior Software Engineer, you'll play a critical role in designing and building scalable, reliable systems. You'll collaborate closely with a diverse team to create software solutions that are impactful More ❯

(React/TypeScript) Location: Remote (1 day per month in Oxford, UK) Type: Permanent | SaaS | Global Tech Company Are you passionate about building exceptional, scalable front-end applications? Our client — a leading SaaS company based near Oxford — is expanding and looking for a Senior Front-End Software Engineer … closely with UX designers and back-end developers to deliver intuitive, high-performance web applications. 🌟 What You’ll Do Develop, optimise, and maintain high-quality front-end applications using React.js and TypeScript Collaborate with cross-functional teams to bridge the gap between design and technical implementation Contribute to a culture of clean code, testing … and continuous improvement (Optionally) take on a technical lead role , mentoring others and influencing best practices ✅ What You’ll Bring 5+ years of experience building production-grade front-end software with React.js and TypeScript Strong skills in HTML5 , CSS3 , and RESTful APIs Experience with unit and integration testing Background in SaaS product development 💡 Nice-to-Have More ❯

I'm recruiting for a unique technology start-up in Cheltenham who are looking to secure a talent front-end SW Engineer to develop a functional but attractive (sexy) user interface for their engineering products. The work involves developing platforms and services for the products involving temporal imagery, datasets and hardware/… sensor data. ROLE: Front-end Software Engineer LOCATION: Cheltenham SALARY: up to £65k Skills required for the Front-End SW Engineer are: Javascript/Typescript React or modern CSS frameworks Swift or Kotlin Ability to operate autonomously The majority of the work will be More ❯

million users. Growing market-leader with excellent career development and training. Be part of a collaborative, forward-thinking digital development team. We’re hiring a Frontend Software Engineer to join a high-performing digital development team working on innovative services for millions of users. You’ll design, build and maintain user-facing applications that deliver seamless … paced environment. Excellent stakeholder management and communication skills. Passion for automation and eliminating duplication. Ability to manage multiple projects and deadlines. What you’ll be doing The Front-end Engineer will be responsible for delivering high-quality, scalable web applications. Collaboration on technical designs and contribution to architectural decisions are key aspects 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 ❯

Job Description Bits is a UK based Fintech startup backed by Y Combinator (the investor behind Stripe and Airbnb) that promotes financial inclusion. You will be joining a small engineering team (10 ppl) that are all about ownership and commitment. More ❯

Job Description Bits is a UK based Fintech startup backed by Y Combinator (the investor behind Stripe and Airbnb) that promotes financial inclusion. You will be joining a small engineering team (10 ppl) that are all about ownership and commitment. More ❯

Job Description Bits is a UK based Fintech startup backed by Y Combinator (the investor behind Stripe and Airbnb) that promotes financial inclusion. You will be joining a small engineering team (10 ppl) that are all about ownership and commitment. More ❯

Job Description Bits is a UK based Fintech startup backed by Y Combinator (the investor behind Stripe and Airbnb) that promotes financial inclusion. You will be joining a small engineering team (10 ppl) that are all about ownership and commitment. More ❯

Job Description Bits is a UK based Fintech startup backed by Y Combinator (the investor behind Stripe and Airbnb) that promotes financial inclusion. You will be joining a small engineering team (10 ppl) that are all about ownership and commitment. More ❯

and applications that empower investment professionals across the business. The team is currently re-architecting its technology stack to become fully cloud-native (AWS), using React for front-end development and Python for backend services. You’ll be working in a culture that values craftsmanship, test-driven development, clean code, and collaboration through pair programming and … code reviews. What You’ll Do Build dynamic front-end applications and UI components using React, TypeScript, and modern libraries. Collaborate with UX and product teams to refine user journeys and ensure intuitive design. Deliver scalable and testable code within a cloud-native architecture. Partner with portfolio managers, researchers, and analysts to translate complex needs into … , and GraphQL/REST APIs . Experience working in a cloud-native environment ( AWS or Azure ). Familiarity with data streaming (WebSockets, chunked responses) and front-end performance optimisation . Strong understanding of testing frameworks (unit, integration, E2E) - Playwright experience a plus. Bonus points for knowledge of Material UI or other design systems, and More ❯

and applications that empower investment professionals across the business. The team is currently re-architecting its technology stack to become fully cloud-native (AWS), using React for front-end development and Python for backend services. You’ll be working in a culture that values craftsmanship, test-driven development, clean code, and collaboration through pair programming and … code reviews. What You’ll Do Build dynamic front-end applications and UI components using React, TypeScript, and modern libraries. Collaborate with UX and product teams to refine user journeys and ensure intuitive design. Deliver scalable and testable code within a cloud-native architecture. Partner with portfolio managers, researchers, and analysts to translate complex needs into … , and GraphQL/REST APIs . Experience working in a cloud-native environment ( AWS or Azure ). Familiarity with data streaming (WebSockets, chunked responses) and front-end performance optimisation . Strong understanding of testing frameworks (unit, integration, E2E) - Playwright experience a plus. Bonus points for knowledge of Material UI or other design systems, and More ❯

and applications that empower investment professionals across the business. The team is currently re-architecting its technology stack to become fully cloud-native (AWS), using React for front-end development and Python for backend services. You’ll be working in a culture that values craftsmanship, test-driven development, clean code, and collaboration through pair programming and … code reviews. What You’ll Do Build dynamic front-end applications and UI components using React, TypeScript, and modern libraries. Collaborate with UX and product teams to refine user journeys and ensure intuitive design. Deliver scalable and testable code within a cloud-native architecture. Partner with portfolio managers, researchers, and analysts to translate complex needs into … , and GraphQL/REST APIs . Experience working in a cloud-native environment ( AWS or Azure ). Familiarity with data streaming (WebSockets, chunked responses) and front-end performance optimisation . Strong understanding of testing frameworks (unit, integration, E2E) - Playwright experience a plus. Bonus points for knowledge of Material UI or other design systems, and More ❯

🚨 Staff Frontend Developer 💰£100–120k + 20% bonus + equity 🌍(London Hybrid OR Remote options available) I've partnered with a revolutionary Fintech whose code is helping the world’s top investment teams make smarter, faster, measurably better decisions. This 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 ❯

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 ❯