1 to 25 of 40 DemandTrendPermanent Front-End Developer (Client-Side Developer) Jobs in London

Front-End Developer (one day a week in the central London office) Sports Analytics This role is a unique opportunity for a Front-End Developer to combine technical challenges with creativity in a collaborative, high-standard work environment. By joining this team, youll not … an ideal setting for those passionate about leveraging cutting-edge technology to make meaningful contributions in the world of sports analytics. Key responsibilities for the role of Front-End Developer include: Build responsive, accessible, and high-performance front-end interfaces using Next.js, React.js, and Tailwind CSS. Collaborate with … and scalability, with an emphasis on cloud integration. Contribute to CI/CD processes, deployments, and frontend build pipelines in a cloud-based environment. As the selected Front-End Developer, your background will include: 3+ years industry experience in a Front-End Developer role More ❯

Front-End Developer (ReactJS) Central London (Liverpool Street) – Hybrid; 2 in 3 days working from home £80,000 Benefits Bonus We’re working with a highly respected firm in Central London who are looking for a skilled Front-End Developer to join their team. … This is a fantastic opportunity to work on exciting, high-profile projects using ReactJS and modern web technologies in a collaborative, supportive environment. The role As Front-End Developer, you’ll be responsible for creating fast, responsive, and visually stunning web applications. You’ll collaborate with designers and back-end … team. What we’re looking for: Strong ReactJS and JavaScript (ES6+) skills. Experience with TypeScript, HTML5, CSS3. Understanding of responsive design and component architecture. Git and modern front-end workflows. Attention to detail and a problem-solving mindset. Desirable skills: Testing tools such as Jest, React Testing Library, or Cypress Build tools like Webpack or Vite More ❯

Front-End Developer (stealth mode start-up) A stealth mode start-up, recently established by a team of highly experienced engineers and entrepreneurs with substantial financial backing and a proven history of successful technology ventures, is seeking a Front-End Developer with a minimum … will include Typescript, but solid JavaScript is ok. Experience of React is 99% essential and Vue.js is a nice to have. This position is perfect for a Front-End Developer eager to pioneer novel technologies. You'll work closely with a dynamic team, facing unique challenges and bringing bold ideas to life. … of success through employing top-tier software engineers, they maintain high standards but also offer competitive compensation. Additionally, the package includes potentially very lucrative stock options. Ideal Front-End Developers should possess robust programming abilities coupled with an outstanding academic history, preferably from top-tier university. The company recognises that their exceptional products and commercial success More ❯

Front-End Developer (stealth mode start-up) A stealth mode start-up, recently established by a team of highly experienced engineers and entrepreneurs with substantial financial backing and a proven history of successful technology ventures, is seeking a Front-End Developer with a minimum … will include Typescript, but solid JavaScript is ok. Experience of React is 99% essential and Vue.js is a nice to have. This position is perfect for a Front-End Developer eager to pioneer novel technologies. You'll work closely with a dynamic team, facing unique challenges and bringing bold ideas to life. … of success through employing top-tier software engineers, they maintain high standards but also offer competitive compensation. Additionally, the package includes potentially very lucrative stock options. Ideal Front-End Developers should possess robust programming abilities coupled with an outstanding academic history, preferably from top-tier university. The company recognises that their exceptional products and commercial success More ❯

InnoWave is looking for a dynamic and agile Senior Front-end Developer with testing experience to join our team. This is a hybrid position for a client in the UK. Senior Front-end Developer Responsibilities Create well-crafted front-end … NextJS. Support and develop server-side rendered web applications, utilizing AWS Lambda. Write resilient code that is continuously tested, deployed, and performs at scale. Test front-end applications end-to-end with unit, functional, integration, visual regression, and lighthouse testing. Be part of a self-organizing, cross-functional Agile team More ❯

Front-End Developer – React Native/React – AI Product Up to £65k + 10% bonus + equity London (Hybrid) A cutting-edge AI company shaping the future of strategic insight is looking for a Front-End Developer to join their fast-moving team. You … joining a collaborative, design-focused team solving some of the most interesting problems in natural language processing and knowledge visualisation. What You’ll Be Doing Building responsive front-end experiences in React, React Native, and Expo Collaborating closely with the Lead Visual Designer on clean and consistent UI/UX Developing new user-facing features and … shipping high-quality code Working with cloud-based hosting services to support scalable applications Staying up to date with front-end technologies and contributing ideas to improve development Pair programming, code reviewing, and pushing to GitHub in a supportive engineering culture What Experience You Will Have Strong experience with JavaScript, HTML5, CSS3 and modern web development More ❯

Front-End Developer – React Native/React – AI Product Up to £65k + 10% bonus + equity London (Hybrid) A cutting-edge AI company shaping the future of strategic insight is looking for a Front-End Developer to join their fast-moving team. You … joining a collaborative, design-focused team solving some of the most interesting problems in natural language processing and knowledge visualisation. What You’ll Be Doing Building responsive front-end experiences in React, React Native, and Expo Collaborating closely with the Lead Visual Designer on clean and consistent UI/UX Developing new user-facing features and … shipping high-quality code Working with cloud-based hosting services to support scalable applications Staying up to date with front-end technologies and contributing ideas to improve development Pair programming, code reviewing, and pushing to GitHub in a supportive engineering culture What Experience You Will Have Strong experience with JavaScript, HTML5, CSS3 and modern web development More ❯

Front-End Developer – React Native/React – AI Product Up to £65k + 10% bonus + equity London (Hybrid) A cutting-edge AI company shaping the future of strategic insight is looking for a Front-End Developer to join their fast-moving team. You … joining a collaborative, design-focused team solving some of the most interesting problems in natural language processing and knowledge visualisation. What You’ll Be Doing Building responsive front-end experiences in React, React Native, and Expo Collaborating closely with the Lead Visual Designer on clean and consistent UI/UX Developing new user-facing features and … shipping high-quality code Working with cloud-based hosting services to support scalable applications Staying up to date with front-end technologies and contributing ideas to improve development Pair programming, code reviewing, and pushing to GitHub in a supportive engineering culture What Experience You Will Have Strong experience with JavaScript, HTML5, CSS3 and modern web development More ❯

Front-End Developer – React Native/React – AI Product Up to £65k + 10% bonus + equity London (Hybrid) A cutting-edge AI company shaping the future of strategic insight is looking for a Front-End Developer to join their fast-moving team. You … joining a collaborative, design-focused team solving some of the most interesting problems in natural language processing and knowledge visualisation. What You’ll Be Doing Building responsive front-end experiences in React, React Native, and Expo Collaborating closely with the Lead Visual Designer on clean and consistent UI/UX Developing new user-facing features and … shipping high-quality code Working with cloud-based hosting services to support scalable applications Staying up to date with front-end technologies and contributing ideas to improve development Pair programming, code reviewing, and pushing to GitHub in a supportive engineering culture What Experience You Will Have Strong experience with JavaScript, HTML5, CSS3 and modern web development More ❯

Role: Front-End Developer (ASP/.NET) with Firewall Experience Location: London, Remote Job Description: We are looking for a skilled ASP.NET/Front-End Developer with a strong foundation in network security and firewall configuration . The ideal candidate will have hands-on … experience with ASP.NET technologies and front-end development, coupled with working knowledge of firewall rules, access controls, and network policies. Experience with Palo Alto Networks is a strong advantage. Key Responsibilities: Develop and maintain web applications using ASP.NET (C#) and modern front-end technologies (e.g., HTML, CSS, JavaScript, React/Angular). … security protocols into applications. Assist in the design and validation of firewall rules and ACLs , ensuring secure access to application modules. Translate security and compliance requirements into front-end behavior and access control logic. Troubleshoot issues related to application-layer firewall conflicts and rule enforcement. Work closely with DevOps/network teams on deployment, access, and More ❯

We are a global digitalconsultancy specialising in AI, cloud, data, and digital product engineering ,delivering transformation at scale for clients in the UK, EU, and NorthAmerica. Our front-end developers are integral to our mission of deliveringseamless user experiences while maintaining technical excellence andoperational efficiency. Requirements Key Responsibilities Lead the development of complex user interfaces using … management strategies in alignment with our design systems andcoding standards. Collaborate closely with UX/UI designers totransform Figma prototypes into pixel-perfect, responsive web interfaces. Integrate front-end applications with RESTful APIsand GraphQL endpoints, ensuring robust data handling and error management. Participate in code reviews , provideconstructive feedback, and uphold high standards of code quality and … in applications, ensuring optimal load times and responsiveness acrossdevices. Mentor and support junior developers within theteam, fostering a culture of knowledge sharing and continuous improvement. Contribute to front-end build tooling and CI/CDpipelines , ensuring efficient developer workflows. Ensure compliance with accessibility (WCAG)standards across all interfaces. Proactively participate in sprint More ❯

Are you an experienced Front-End WordPress Developer looking for your … next challenge with a leading EdTech innovator? Our client, an award-winning business, is seeking a talented individual to take ownership of their website's front-end development and enhancements. About Our Client: Our client is a dynamic and growing EdTech company headquartered in London, with a team of … closely with cross-functional teams including PPC and SEO specialists, full-stack developers and content creators. The Role: As a Front-End WordPress Developer, you will be responsible for delivering visually appealing, highly functional, and performance-optimised platforms. You'll drive new website improvements across two group brands, ensuring a seamless user More ❯

Are you an experienced Front-End WordPress Developer looking for your … next challenge with a leading EdTech innovator? Our client, an award-winning business, is seeking a talented individual to take ownership of their website's front-end development and enhancements. About Our Client: Our client is a dynamic and growing EdTech company headquartered in London, with a team of … closely with cross-functional teams including PPC and SEO specialists, full-stack developers and content creators. The Role: As a Front-End WordPress Developer, you will be responsible for delivering visually appealing, highly functional, and performance-optimised platforms. You'll drive new website improvements across two group brands, ensuring a seamless user More ❯

Are you an experienced Front-End WordPress Developer looking for your … next challenge with a leading EdTech innovator? Our client, an award-winning business, is seeking a talented individual to take ownership of their website's front-end development and enhancements. About Our Client: Our client is a dynamic and growing EdTech company headquartered in London, with a team of … closely with cross-functional teams including PPC and SEO specialists, full-stack developers and content creators. The Role: As a Front-End WordPress Developer, you will be responsible for delivering visually appealing, highly functional, and performance-optimised platforms. You'll drive new website improvements across two group brands, ensuring a seamless user More ❯

Front End Developer (React.js) Central London (Liverpool Street) - Hybrid; 2 in 3 days working from home £80,000 + Benefits + Bonus We're working with a highly respected firm in Central London who are looking for a skilled Front End Developer to join … a fantastic opportunity to work on exciting, high-profile projects using React.js and modern web technologies in a collaborative, supportive environment. The role As Front End Developer, you'll be responsible for creating fast, responsive, and visually stunning web applications. You'll collaborate with designers and Back End developers, integrating … role? Hybrid working from a prime Liverpool Street location. Varied and interesting projects. Supportive team and professional growth opportunities. If you're a talented Front End Developer looking for your next move, we'd love to hear from you. More ❯

you'll be doing: Building responsive, high-quality web applications and user interfaces using HTML, CSS and JavaScript Translating design mock-ups and wireframes into accessible, functional front-end features Collaborating with back-end teams to ensure seamless integration of APIs and data services Testing, debugging and maintaining code to ensure usability across devices … and browsers Staying current with front-end development tools, trends and frameworks Participating in code reviews and contributing to continuous improvement within the team Supporting the adoption of new digital capabilities across Defence environments Working in a fast-paced, agile team to solve real-world user challenges What we're looking for: UK Developed Vetting (DV … clearance is essential Experience as a Front-End Developer with a strong portfolio of front-end applications Proficiency in HTML, CSS and JavaScript, including modern frameworks such as React, Angular or Vue.js Understanding of responsive design and cross-browser compatibility Familiarity with version control (Git) and front More ❯

you'll be doing: Building responsive, high-quality web applications and user interfaces using HTML, CSS and JavaScript Translating design mock-ups and wireframes into accessible, functional front-end features Collaborating with back-end teams to ensure seamless integration of APIs and data services Testing, debugging and maintaining code to ensure usability across devices … and browsers Staying current with front-end development tools, trends and frameworks Participating in code reviews and contributing to continuous improvement within the team Supporting the adoption of new digital capabilities across Defence environments Working in a fast-paced, agile team to solve real-world user challenges What we're looking for: UK Developed Vetting (DV … clearance is essential Experience as a Front-End Developer with a strong portfolio of front-end applications Proficiency in HTML, CSS and JavaScript, including modern frameworks such as React, Angular or Vue.js Understanding of responsive design and cross-browser compatibility Familiarity with version control (Git) and front More ❯

Office travel - Hybrid (3 Days a week in the office) Location - Central London Salary - £80,000 - £90,000 + Benefits Infinite Talent has partnered with a renewable energy start-up backed by a global business to recruit for two Front More ❯

We are seeking two Senior Front-End Blockchain Developers to join a UK-based B2B trading platform in the fintech space. You will continue the development of a Ruby/Rails and React web application, ensuring a seamless user experience and robust integrations with blockchain-based core services. This is a full-time, 12-month contract … Candidate Remuneration: £6,500-£7,500 per month (£78,000-£90,000 per year) Remuneration Frequency: Monthly Country of Resource: United Kingdom Responsibilities Develop and maintain the front-end of a Ruby/Rails and React-based web application. Collaborate with product and back-end teams to implement fintech and blockchain features. Ensure high … years of hands-on experience React: Minimum 7 years of hands-on experience API Integrations: Minimum 5 years of experience Professional Software Development: 10+ years of experience Front-End Architecture: Strong understanding required Language: English (Advanced proficiency) Nice-to-Have Skills Experience with fintech platforms or blockchain-based UIs Proficiency in JavaScript/TypeScript frameworks (e.g. 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 … 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 AI technologies Excellent training 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 … 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 AI technologies Excellent training More ❯

We're seeking an experienced Senior Frontend Developer to join our Professional Services team at Squiz. You'll advise on front-end architecture and implement the Squiz DXP ensuring the technical solution is tailored to the client brand and content strategy. You will have the following Technical Skills & Experience: 5+ … years experience front-end web development JavaScript (preferably vanilla JS), HTML, and CSS Experience building commercial grade Websites, Portals, Intranets etc Strong knowledge of web fundamentals, HTTP methods, integration patterns, RESTful APIs Experience with Node.js or other server-side JavaScript (backend 20% of role) Building web interfaces according to WCAG accessibility standards and inclusive … for the following: Experience delivering search implementations, indexing content and building search interfaces. Understanding of information architecture and how it applies to large content ecosystems Experience integrating front-end interfaces with content workflows and personalization engines Experience working on multi-tenant platforms or enterprise SaaS applications Understanding of micro frontends or component-based architectures Comfortable navigating 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 … 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 … developers You're likely to be degree educated in Computer Science or similar tech discipline What's in it for you: As a Senior Front End Developer you will receive a competitive package: Salary to £100k 25 days holiday (increasing to 30), plus Christmas Eve Vitality healthcare plus a host of wellbeing More ❯

of 2024. In the UK, Talan count 250 employees on several site, the main being: London, Edinburgh and Chester, Leeds. Job Description We are looking for a front-end developer to work on Issuemaster real-time web application. The successful candidate will work on key and large epics in our book of … work incl. new screens, core & shared functionalities and upgrade of the existing. This is an opportunity for a senior developer with the right skillset and mindset to take part in our major effort to rewrite this important FO application and be part in the Primary business evolution including integration to new venues, automation of core processes … an excellent knowledge and understanding of the software engineering fundamentals as well as strong solution design skills promoting simplicity, stability, performance and scalability. Experience as a senior developer on an eTrading or Front Office trading application will be a strong plus. Key Responsibilities: Contribute to the reengineering of the core components. Develop key business More ❯

of our patient-facing digital consultations and clinician-facing decision-making tools. We are passionate about health care and we are looking for a talented and thorough Developer to join the team to continue with revolutionizing health care for the benefit of millions of patients in the UK and across the world. You will share the … backend developers, clinicians, algorithm builders and Quality Analysts, who thrives on delivering robust, tested and high-quality solutions. Key Responsibilities You will be a hands-on Frontend developer (React & Angular) with good commercial awareness and stakeholder management skills. As part of this role, you will be required to design, implement, test and roll out new medical More ❯