1 to 25 of 246 Front End Developer (Client-Side Developer) Jobs in London

London, United Kingdom | Posted on 27/06/2025 VE3 is a technology and business consultancyfocused on delivering end-to-end technology solutions and products. We havesuccessfully serviced enterprises across multiple markets, including the publicand private sectors. Our services span all aspects of business, providing aholistic approach to managing an organization. We are committed to … savings and increased operational efficiency. Ourcommitment to quality is adopted throughout the organization and sets thefoundation for delivering our full suite of capabilities. Job Description Job Title: Senior Front-EndDeveloper Role Summary We are seeking a SeniorFront-End Developer with a minimum of 5 years of professional experience in building scalable, high … quality web applications using React, TypeScript,and Redux . You will play a critical role in designing and developingfront-end solutions within modern architecture, collaborating with productowners, UX designers, and backend engineers to deliver seamless and performantuser experiences across our platforms. About VE3 We are a global digitalconsultancy specialising in AI, cloud, data, and digital product engineering ,delivering More ❯

We’re looking for a Senior Frontend Developer who’s passionate about building beautifully crafted, high-performance user interfaces. You’ll play a key role in shaping the user experience of innovative software solutions, working closely with backend developers and data scientists to bring complex ideas to life. We’re looking for someone who thrives on … Design user-friendly interactions and interfaces using tools such as Figma Facilitate UX/UI requirements elicitation sessions with clients Interact with RESTful APIs for seamless communication between front-end and back-end systems Deliver high-quality code and successful project outcomes Provide mentorship to other software engineers Stay updated with the latest advancements More ❯

Founding AI Frontend Developer | naptha.ai About the role: We are seeking a talented frontend developer to join our team as a founding member, focusing on rapidly developing and deploying dynamic user interfaces for products built on our custom multi-agent system stack. This role involves creating intuitive, responsive, and powerful interfaces that … Job function Job function Engineering and Information Technology Industries Software Development Referrals increase your chances of interviewing at Naptha AI by 2x Get notified about new Frontend Developer jobs in London, England, United Kingdom . London, England, United Kingdom 4 months ago London, England, United Kingdom £90,000 - £130,000 1 month ago Software Engineer - Python … Container Images London, England, United Kingdom 1 month ago London, England, United Kingdom 3 weeks ago Remote Senior Frontend Developer (m/w/d) - Vaadin/GWT (Google Web Toolkit)/Apache Wicket London, England, United Kingdom 4 days ago Software Engineer - Blockchain Data (fully remote) London, England, United Kingdom 3 days ago London, England More ❯

are revolutionising the financial industry with cutting-edge technology solutions. Their innovative platform is designed to empower individuals and businesses by providing seamless financial services. As a Senior Front-End Developer, you will play a pivotal role in shaping the company's products and driving the development of our user interfaces. You … will work closely with cross-functional teams to deliver high-quality front-end solutions that enhance the user experience and drive business growth. This role also presents an excellent opportunity for someone who aspires to move into a leadership position within the organisation. Responsibilities: Collaborate with product managers, designers, and back-end engineers to … develop user-friendly, responsive front-end applications. Build robust and scalable web applications using React, ensuring the highest standards of performance, security, and usability. Participate in the full software development life cycle, from requirements gathering to deployment and maintenance. Identify and resolve technical challenges, optimising front-end performance and improving user interfaces. More ❯

are revolutionising the financial industry with cutting-edge technology solutions. Their innovative platform is designed to empower individuals and businesses by providing seamless financial services. As a Senior Front-End Developer, you will play a pivotal role in shaping the company's products and driving the development of our user interfaces. You … will work closely with cross-functional teams to deliver high-quality front-end solutions that enhance the user experience and drive business growth. This role also presents an excellent opportunity for someone who aspires to move into a leadership position within the organisation. Responsibilities: Collaborate with product managers, designers, and back-end engineers to … develop user-friendly, responsive front-end applications. Build robust and scalable web applications using React, ensuring the highest standards of performance, security, and usability. Participate in the full software development life cycle, from requirements gathering to deployment and maintenance. Identify and resolve technical challenges, optimising front-end performance and improving user interfaces. More ❯

Join to apply for the Senior Frontend Developer role at Applied Data Science Partners Join to apply for the Senior Frontend Developer role at Applied Data Science Partners We’re looking for a Senior Frontend Developer who’s passionate about building beautifully crafted, high-performance user interfaces. You … Design user-friendly interactions and interfaces using tools such as Figma Facilitate UX/UI requirements elicitation sessions with clients Interact with RESTful APIs for seamless communication between front-end and back-end systems Deliver high-quality code and successful project outcomes Provide mentorship to other software engineers Stay updated with the latest advancements … at Applied Data Science Partners by 2x Sign in to set job alerts for “Frontend Developer” roles. Romford, England, United Kingdom 2 weeks ago Front End Developer (Remote Fixed Term Contract) London, England, United Kingdom 1 month ago London, England, United Kingdom 2 weeks ago London, England, United More ❯

Senior Lead Software Engineer - Front-End Developer Join to apply for the Senior Lead Software Engineer - Front-End Developer role at JPMorganChase Job Description Be an integral part of a team that's constantly pushing the envelope to enhance, build, and deliver top-notch More ❯

designing and delivering autonomous AI teams that work alongside humans to solve real-world problems. As we continue to expand our product offerings, we are seeking a talented Front-End Developer to help shape the future of human-AI collaboration. In this role, you'll build intuitive dashboards that allow users to … based interfaces to solve one of the AI era’s biggest challenges: making complex systems usable through powerful, non-chat user experiences. Key Responsibilities Develop, maintain, and optimize front-end components for modern web applications Implement responsive, mobile-friendly designs that ensure cross-platform compatibility Translate wireframes and prototypes into polished, production-ready applications in collaboration … with UX/UI designers Integrate front-end interfaces with REST and GraphQL APIs, as well as back-end systems Ensure high-quality, maintainable code through testing, debugging, and adherence to best practices Stay current with emerging UI/UX technologies to continuously improve the user experience Participate in agile development processes, including Test More ❯

designing and delivering autonomous AI teams that work alongside humans to solve real-world problems. As we continue to expand our product offerings, we are seeking a talented Front-End Developer to help shape the future of human-AI collaboration. In this role, you'll build intuitive dashboards that allow users to … based interfaces to solve one of the AI era’s biggest challenges: making complex systems usable through powerful, non-chat user experiences. Key Responsibilities Develop, maintain, and optimize front-end components for modern web applications Implement responsive, mobile-friendly designs that ensure cross-platform compatibility Translate wireframes and prototypes into polished, production-ready applications in collaboration … with UX/UI designers Integrate front-end interfaces with REST and GraphQL APIs, as well as back-end systems Ensure high-quality, maintainable code through testing, debugging, and adherence to best practices Stay current with emerging UI/UX technologies to continuously improve the user experience Participate in agile development processes, including Test More ❯

Front End Developer/Engineer (TypeScript React Native AI) London/WFH to £65k Want to work on intellectually and technically challenging AI systems at the cutting edge of what is possible, whilst learning and collaborating with an amazing team and enjoying flexible working and a range of other perks? You could … be progressing your career as a Front End Developer at a well-established AI company acting as tech incubator within the World Economic Forum to tackle issues like climate change, AI, battery technology and other real world problems. As a Front End Developer you … within a cloud environment (AWS preferred) You are a bright, proactive individual and a strong problem solver with commercial acumen What's in it for you: As a Front End Developer/Engineer, you will earn a competitive package including: Salary to £65k Bonus Pension Healthcare Work with the latest cutting-edge More ❯

Front End Developer/Engineer (TypeScript React AI) London/WFH to £65k Want to work on intellectually and technically challenging AI systems at the cutting edge of what is possible, whilst learning and collaborating with an amazing team and enjoying flexible working and a range of other perks? You could be … progressing your career as a Front End Developer at a well-established AI company acting as a tech incubator within the World Economic Forum, tackling issues like climate change, AI, battery technology, and other real-world problems. As a Front End Engineer, you'll design and develop new … with cloud environments (AWS preferred). You are a proactive problem solver with commercial acumen and a bright, enthusiastic personality. What's in it for you: As a Front End Developer/Engineer, you will earn a competitive package including: Salary up to £65k Bonus Pension Healthcare Opportunity to work with the More ❯

in other countries, and Fat Media, a traditional full-service agency based in the North West focused on aspiring SMEs. The Opportunity We’re seeking an experienced Senior Front End Developer who will complement and bolster our current team of talented developers.You will get to explore new technology and influence ways of … us develop ours; we are receptive to new solutions and love finding innovative ways of delivering modern software solutions. We’re looking for someone who’s serious about front-end technologies and also has a keen eye for nice design and really cares about how the things they make end up looking on screen. … collaborating closely with both the design and development team to come up with beautiful award-winning solutions to challenging yet exciting briefs. Key Responsibilities & Accountabilities: Work with the Front End Development team implementing web applications, and with the Back End Development team to integrate Front End and Back End More ❯

Social network you want to login/join with: Front End Developer TypeScript React Native, London col-narrow-left Client: Client Server Location: London, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Reference: 86c77cf7c4e6 Job Views: 3 Posted: 29.06.2025 Expiry Date: 13.08.2025 … col-wide Job Description: Front End Developer/Engineer (TypeScript React Native AI) London/WFH to £65k Want to work on intellectually and technically challenging AI systems at the cutting edge of what is possible, whilst learning and collaborating with an amazing team and enjoying flexible working and a range of … other perks? You could be progressing your career as a Front End Developer at a well-established AI company acting as tech incubator within the World Economic Forum to tackle issues like climate change, AI, battery technology and other real world problems. As a Front End Developer More ❯

where you can genuinely make an impact – and be recognized for it. We believe great businesses thrive on diversity, inclusion, and the contributions of all employees. To that end, we recruit candidates from different backgrounds and foster a work environment that encourages employees to collaborate and learn from each other, completely free of barriers. We encourage you to … apply if your qualifications and experience are a good fit for any of our openings. Your role: The Senior Frontend Developer is a member of a small, highly focused team, responsible for building modern, sophisticated applications, using leading edge technologies. This is an opportunity to work alongside some of the best developers in London and apply … experience Web Service API integration Selenium/Cypress Unit testing with Mocha, Jasmine/Jest, React Test Related web technologies like Sass/Less, AJAX and JSON Micro Front-End What you can expect: At Global Relay, there’s no ceiling to what you can achieve. It’s the land of opportunity for the energetic, the More ❯

Join to apply for the Senior Front-End Developer role at Cynomi We are seeking a Senior Front-End Developer to join our growing in-house engineering team and work on our user-facing React-based vCISO platform. As a senior team member, you … will contribute to shaping the future technical direction of our front-end codebase, deliver new features and improvements, and mentor junior colleagues. The ideal candidate will be passionate, self-motivated, with significant web development experience, capable of working in a fast-paced environment to support business success. About us: Cynomi is a fast-growing, Silicon Valley … powered platform, enabling high-quality cybersecurity services for MSPs and MSSPs. Key Responsibilities: Develop, test, debug, and maintain features, ensuring high-quality, efficient code. Research and promote new front-end technologies and methodologies to improve processes and influence architecture decisions. Transform requirements and mockups into robust, high-quality code, providing technical insights and addressing constraints. Collaborate More ❯

first-ever crowdfunding solution for sports betting, Colossus Syndicates. This technology can also be made available to partners who wish to operate their own pools for their own end players. About This Role We are looking for a passionate Front End developer with a good eye for UX design, eager More ❯

are rich and complex, and our purpose is unique. We'd love you to join us. What skills, knowledge and experience will you need? Significant demonstrable expertise in Front-end development of large-scale systems dealing with high numbers of users, transactions and business processes. Detailed working knowledge and extensive experience of open-source technologies including … HTML, CSS, client and server-side JavaScript, TypeScriptNode.js and other modern front-end frameworks and templating languages. Experience in building accessible compliant user interfaces. Proven ability in delivering thorough unit level test coverage using common testing frameworks such as Jest or Mocha. Experience integrating with a wide range of technical systems including … database technologies (SQL or NoSQL), caching tools such as Redis and API Microservices, all deploying into cloud-based infrastructure. (AWS or Azure). Influential and able to lead front-end activities, set and develop best practice for an agile team and contribute across multiple teams. You will ensure consistency whilst promoting standards as well as creating More ❯

Senior Front End Developer/Engineer (JavaScript Vue.js) London to £100k Do you enjoy working with a range of programming languages? You could be progressing your career in a senior, hands-on Front End Developer role at a scale-up tech company, that enables … years, with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior Front End Developer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to … help scale and future proof the business. You'll focus on front end components using JavaScript and Vue.js, there's a range of other tech in the stack (TypeScript, Node.js, Java, Python and of course a bit of legacy PHP!), you'll be encouraged to explore new technologies and use the best tool for the job More ❯

Senior Front End Developer/Engineer (JavaScript Vue.js) London to £100k Do you enjoy working with a range of programming languages? You could be progressing your career in a senior, hands-on Front End Developer role at a scale-up tech company, that enables … years, with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior Front End Developer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to … help scale and future proof the business. You'll focus on front end components using JavaScript and Vue.js, there's a range of other tech in the stack (TypeScript, Node.js, Java, Python and of course a bit of legacy PHP!), you'll be encouraged to explore new technologies and use the best tool for the job More ❯

Senior Front End Developer/Engineer (JavaScript Vue.js) London to £100k Do you enjoy working with a range of programming languages? You could be progressing your career in a senior, hands-on Front End Developer role at a scale-up tech company, that enables … years, with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior Front End Developer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to … help scale and future proof the business. You'll focus on front end components using JavaScript and Vue.js, there's a range of other tech in the stack (TypeScript, Node.js, Java, Python and of course a bit of legacy PHP!), you'll be encouraged to explore new technologies and use the best tool for the job More ❯

blockchain and artificial intelligence to shape the future of these industries, we would love to hear from you. Role Overview: MetaWin Games Studio is looking for a talented Front End Developers at mid or senior levelto join our team to build state-of-the-art slot games and to improve our framework. The ideal candidate is More ❯

Social network you want to login/join with: Our Team At Trilitech, our mission is to power the Web3 revolution by building cutting-edge solutions on the Tezos blockchain. We specialise in core development, application development, and business development More ❯

Join to apply for the Front-End Developer (12-Month Contract) role at ECA International Join to apply for the Front-End Developer (12-Month Contract) role at ECA International About Us As a leading group of companies, the ECA International Group stands as … us to experience a rewarding career where your potential is celebrated, and your journey to excellence begins. About The Role We are seeking a highly skilled and experienced Front-End Developer (12-Month Contract) to join our Technology & Engineering team at ECA International. This is a hands-on role ideal for a … is passionate about building responsive, user-centric web applications using React, Remix, TypeScript/JavaScript, CSS, and Tailwind. The successful candidate will be responsible for designing and implementing front-end solutions that integrate seamlessly with back-end services, ensuring a scalable and maintainable architecture. You will work collaboratively within an Agile team, translating business More ❯

market demand and is incredibly profitable. I've placed 11 Engineers here across backend node.js, frontend react and AI and they have 2 more immediate requirements for expert Front End Developers, 1 Senior Front End Dev and 1 Mid level FE Dev. Role - Front End Developer … SaaS/Software/complex web applications with a massive focus on exceptional user experience Customer/User experience mentality - has worked collaboratively with a Product Engineering team Front End React experience - at least 3 years of expert frontend experience using React ecosystem Very strong core HTML, CSS, JavaScript/TypeScript Longevity (2-3+ years More ❯

a female founded company, with a culture focused on diversity and inclusion amongst our entire team. About the Role We have an exciting opportunity for a talented Senior Front End Developer to join our London based scrum team. The Technology team is primarily offshore but are looking to build out a London … but also someone that can bring their own expertise to push forward our overall technical excellence. Skills & Experience Significant experience with a JavaScript framework for front end development preferably Vue or React and preferably within a Single Page Application context Be an active part of the engineering community team and collaborating with other … developers Solid experience working in an agile development environment Experience working with modern front end frameworks, APIs and GraphQL Some knowledge of Single Page Apps, App/Play store and Apache Cordova or similar technology Coding best practice for performance, security and other architectural best practices Experience working with Git Ability to quickly implement solutions from More ❯