1 to 25 of 108 Front End Developer (Client-Side Developer) Jobs in London

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 ❯

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 ❯

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 ❯

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 ❯

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 ❯

the House of Commons Library, providing information and enquiry services about the business of Parliament for Members of Parliament, their staff, and staff of the House. The Developer role will focus on developing and maintaining software to support the provision of those services. you will work as part of a team on solving complex puzzles to More ❯

year FTC) Location: London/Remote Salary: £50,000-£60,000 DOE Skills: JavaScript, HTML, CSS, React, Vue, Wordpress, AWS We are seeking a skilled and detail-oriented Front-End Developer to join our dynamic team on a 12-month contract. As a key member of our development team, you will play … on diverse projects, bringing innovative ideas to life while ensuring consistent performance and usability across devices and browsers. Key Responsibilities ● Develop and maintain responsive web sites using modern front-end technologies ● Collaborate with designers to implement and refi ne designs ● Optimise applications for speed and scalability ● Ensure code quality through testing and peer code reviews ● Participate … in agile development processes, including sprint planning and daily stand-ups ● Troubleshoot and debug front-end issues across various browsers and devices ● Help maintain and improve CI/CD setups Required Qualifications ● 3+ years of experience in front-end development ● Strong proficiency in HTML, CSS, and JavaScript (ES6+) ● Strong understanding of WordPress More ❯

year FTC) Location: London/Remote Salary: £50,000-£60,000 DOE Skills: JavaScript, HTML, CSS, React, Vue, Wordpress, AWS We are seeking a skilled and detail-oriented Front-End Developer to join our dynamic team on a 12-month contract. As a key member of our development team, you will play … on diverse projects, bringing innovative ideas to life while ensuring consistent performance and usability across devices and browsers. Key Responsibilities ● Develop and maintain responsive web sites using modern front-end technologies ● Collaborate with designers to implement and refi ne designs ● Optimise applications for speed and scalability ● Ensure code quality through testing and peer code reviews ● Participate … in agile development processes, including sprint planning and daily stand-ups ● Troubleshoot and debug front-end issues across various browsers and devices ● Help maintain and improve CI/CD setups Required Qualifications ● 3+ years of experience in front-end development ● Strong proficiency in HTML, CSS, and JavaScript (ES6+) ● Strong understanding of WordPress More ❯

awards. These include British Young Entrepreneur of the Year, Forbes 30 under 30, the UK’s top tutoring company and best Edtech company. We are looking for a Front-End WordPress Developer to take ownership of front-end updates and enhancements for our websites. You will work closely … with cross-functional teams to deliver visually appealing, highly functional, and performance-optimised platforms that delight our users. Key Responsibilities Front-End Development: Implement new features, components, and layouts using WordPress, HTML5, CSS3, and JavaScript. Content Management: Update and maintain website content in alignment with branding and SEO strategies. Responsive Design: Ensure a flawless user experience … performance, including loading speed, code structure, and accessibility. Collaboration: Work with team members to enhance various aspects of UX/UI/SEO. Bug Fixing: Identify and address front-end issues promptly to maintain platform reliability. Plugin Management: Configure, update, and troubleshoot WordPress plugins to enhance functionality. Quality Assurance: Conduct regular testing for browser and device More ❯

awards. These include British Young Entrepreneur of the Year, Forbes 30 under 30, the UK’s top tutoring company and best Edtech company. We are looking for a Front-End WordPress Developer to take ownership of front-end updates and enhancements for our websites. You will work closely … with cross-functional teams to deliver visually appealing, highly functional, and performance-optimised platforms that delight our users. Key Responsibilities Front-End Development: Implement new features, components, and layouts using WordPress, HTML5, CSS3, and JavaScript. Content Management: Update and maintain website content in alignment with branding and SEO strategies. Responsive Design: Ensure a flawless user experience … performance, including loading speed, code structure, and accessibility. Collaboration: Work with team members to enhance various aspects of UX/UI/SEO. Bug Fixing: Identify and address front-end issues promptly to maintain platform reliability. Plugin Management: Configure, update, and troubleshoot WordPress plugins to enhance functionality. Quality Assurance: Conduct regular testing for browser and device More ❯

Senior React Developer London, United Kingdom · Full-time Description A fast-growing investment technology platform is seeking a talented Senior React Developer to join its frontend development team. The successful candidate will work on a suite of web applications supporting trade execution, portfolio management, and risk analysis across private equity, private debt … s core technology platform. Key Responsibilities: Deliver high-quality, tested features across core applications such as the order and risk management systems Collaborate with cross-functional teams on end-to-end features Mentor junior developers through code reviews and guidance Enhance UX and maintain consistent design principles across the platform Participate in Agile ceremonies including stand More ❯

Senior React Developer London, United Kingdom · Full-time Description A fast-growing investment technology platform is seeking a talented Senior React Developer to join its frontend development team. The successful candidate will work on a suite of web applications supporting trade execution, portfolio management, and risk analysis across private equity, private debt … s core technology platform. Key Responsibilities: Deliver high-quality, tested features across core applications such as the order and risk management systems Collaborate with cross-functional teams on end-to-end features Mentor junior developers through code reviews and guidance Enhance UX and maintain consistent design principles across the platform Participate in Agile ceremonies including stand More ❯

Working on behalf of a leading Tier 1 investment bank who are looking to make a hire for a strong Frontend Developer at the AVP level for their Global Financing and Credit Team. This team are a leading market maker of Credit products on major Dealer to Client platforms. Your key responsibilities Working in More ❯

Working on behalf of a leading Tier 1 investment bank who are looking to make a hire for a strong Frontend Developer at the AVP level for their Global Financing and Credit Team. This team are a leading market maker of Credit products on major Dealer to Client platforms. Your key responsibilities Working in More ❯

Job Title: Senior Front-End Developer/React Developer Duration: 6 Months Location: London Area, UK (2 Days per week) 8 Hours a day - 40 Hours Per week. What you'll do: Create extremely well-crafted front-end web applications using React.js and Next.js … develop Server Side Rendered (SSR) web applications, making use of AWS Lambda Write resilient code that will be continuously tested, deployed, and performed at scale Test front-end applications end-to-end with unit, functional, integration, visual regression, and Lighthouse testing Be part of a self-organising and cross-functional More ❯

Job Title: Senior Front-End Developer/React Developer Duration: 6 Months Location: London Area, UK (2 Days per week) 8 Hours a day - 40 Hours Per week. What you'll do: Create extremely well-crafted front-end web applications using React.js and Next.js … develop Server Side Rendered (SSR) web applications, making use of AWS Lambda Write resilient code that will be continuously tested, deployed, and performed at scale Test front-end applications end-to-end with unit, functional, integration, visual regression, and Lighthouse testing Be part of a self-organising and cross-functional More ❯

Javascript Front End Developer ?" Central London JavaScript Engineer required to join a fast growing company and shape the future of payments cross-platform and cross-device? Evolving in an agile and collaborative environment, you will be part of a multidisciplinary and excellence-driven team and bring your solid native JavaScript skills and … that you’re involved in. The role is uniquely positioned to be deeply involved in the entire product lifecycle, working side by side with Front-End & Back-End Developers, Architects and Designers towards a common goal: provide millions of online shoppers worldwide with the best possible payment experience. The ideal More ❯

Front End React Developer, React, Javascript, NW London to £70K A leading financial software company are looking for a Front End JavaScript developer who is proficient with React.js. The role is Offcie based in North West London, Your primary focus will be on developing … the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is important. Responsibilities Developing new user-facing features using React.js Building reusable components and front-end libraries for future use Translating designs and wireframes into high quality code Optimising components for maximum performance across a vast array of web-capable devices and … core principles Experience with Redux and RTK (RTKQuery also a bonus) Familiarity with RESTful APIs Knowledge of modern authorization mechanisms, such as JSON Web Token Familiarity with modern front-end build pipelines and tools (Github actions a bonus) Experience with common front-end development tools such as Babel, Webpack, NPM, etc. Ability More ❯

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 of the role: As a Front End Developer you will join one of our multinational Scrum teams to create state-of-the-art software solutions. In all teams we cooperate with internal and external experts from different knowledge domains to discover and build the best solutions possible. Main Responsibilities: · Primarily working on integrations into the ongoing platform and contribute to various … nrwl, or Nest.js. · Demonstrated ability to 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 to optimize performance. · Capable of More ❯

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 of the role: As a Front End Developer you will join one of our multinational Scrum teams to create state-of-the-art software solutions. In all teams we cooperate with internal and external experts from different knowledge domains to discover and build the best solutions possible. Main Responsibilities: · Primarily working on integrations into the ongoing platform and contribute to various … nrwl, or Nest.js. · Demonstrated ability to 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 to optimize performance. · Capable of More ❯