14 of 14 Permanent Front-End Developer (Client-Side Developer) Jobs in East London

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 … 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 … 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 More ❯

Senior React Developer required for an exciting sports technology start up with a fantastic product based around fan interaction during live sporting events. You will be joining a business who are already at the forefront of their industry and have a small but highly skilled team. …/Senior Frontend Developer role we are looking for an experienced Senior Front End Developer to work remotely apart from 1-2 days a month where you would need to come to the London office … to work as a Senior React Developer/Typescript Developer/Front End Developer on a fantastic, cutting-edge product? Want to work with the latest technology and continually evolve? My client More ❯

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 … 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 More ❯

Department: Information Technology Employment Type: Full Time Location: Romford Compensation: £35,000 - £45,000/year Description As a Front-End Developer, you'll be responsible for developing user-friendly, responsive websites using modern front-end … and visually appealing web interfaces using HTML, CSS, and JavaScript. Translate UI/UX wireframes and design mock-ups into fully functional front-end code. Ensuring cross-browser compatibility. Assist in generating downloadable assets (such as PDFs) from web content using appropriate libraries. Write clean, efficient … and maintainable code following industry best practices. Implement dynamic client-side functionality using JavaScript frameworks or vanilla JS. Perform basic PHP coding tasks such as templating, working with simple CMS functions, or integrating front-end components with back-end logic. More ❯

Department: Information Technology Employment Type: Full Time Location: Romford Compensation: £35,000 - £45,000/year Description As a Front-End Developer, you’ll be responsible for developing user-friendly, responsive websites using modern front-end … and visually appealing web interfaces using HTML, CSS, and JavaScript. Translate UI/UX wireframes and design mock-ups into fully functional front-end code. Ensuring cross-browser compatibility. Assist in generating downloadable assets (such as PDFs) from web content using appropriate libraries. Write clean, efficient … and maintainable code following industry best practices. Implement dynamic client-side functionality using JavaScript frameworks or vanilla JS. Perform basic PHP coding tasks such as templating, working with simple CMS functions, or integrating front-end components with back-end logic. More ❯

Frontend Engineer | AI x Defence | London (Hybrid) | Up to £110k + Meaningful Equity Shape the Interface to the Future of Autonomous Defence Join one of the UK’s most ambitious AI-defence startups, backed by top-tier investors and moving More ❯

Greenfield projects, autonomy, and a blank canvas for you to implement the ideas that motivate you. Does this sound like you, or what you’re missing right now? This role sits within the internal tooling team at a globally renowned More ❯

Front-end Developer- Start-Up Venture Looking for a frontend-focused software developer to join a stealth-mode start-up with a team that has a history of several multi-million-dollar exits. They've worked together at More ❯

Software Engineer – Next.JS Salary up to £80000 - plus bonus Next.JS, Serverside Rendering and Static Rendering, JavaScript, AGGrid, JavaScript. Harrington Starr has partnered with an innovative Digital Investment & Crypto Currency house that specialise in developing unique software systems for Crypto Trading More ❯

exciting opportunity to contribute to the development of innovative digital products across various domains, leveraging cutting-edge technologies and best practices in front-end engineering. Key Responsibilities Develop and maintain responsive, high-quality user interfaces using React.js Translate UI/UX designs into functional and visually … processes and tools Required Skills and Experience Proven experience as a React Developer , with a strong portfolio of front-end projects Proficient in React Hooks , React Scripts , and modern JavaScript (ES6+) Experience building UIs from scratch based on design specifications (e.g., Figma … technologies Familiarity with HD data visualisation techniques Exposure to cloud platforms and CI/CD pipelines Interest in building scalable and maintainable front-end architectures Personal Attributes Adaptable, pragmatic, and solution-oriented Self-starter with a proactive mindset and strong ownership of deliverables Passionate about clean More ❯

Senior Frontend Developer (React) | FinTech | Hybrid London | up to £80,000 + 10% bonus Company Overview: We are working with a client who is a leading Private Equity Data Analytics firm. They transform complex PE data into actionable insights for CIOs, CFOs, and General … Partners, using AI to predict future fund performance. Role: They're seeking a Senior Frontend Developer with strong expertise in React and TypeScript to enhance the user experience of their data analytics platforms. You'll be a key contributor in building intuitive and responsive interfaces. Responsibilities More ❯

Lead Frontend Developer (Vue) Contract: Up to £110k Location: 2-3 days p/week in London Lead Frontend Developer - would you like the opportunity to work for a FinTech organisation that helps its consumers improve their financial well-being. You should … be a competent Lead Frontend Developer who enjoys working with Vue, although they are happy to consider other Frontend frameworks. As a Lead Frontend Developer, you will get a lot of responsibility and work on super interesting projects, while working alongside engineers … production apps with Vue and Angular. Proven experience building enterprise Saas UIs. Knowledge of state management. If you’re a Lead Frontend Developer, please apply. More ❯

Front End Developer | Contract | SolidJS | Remote | Outside IR35 | £400-£500 per day Position: Contract Front End Developer Location: Remote IR35: Outside Rate: £400-£500 per day Part time/Short term I'm currently … recruiting for a contract frontend developer with an expertise in SolidJS, to join my client for an exciting project! You will be working alongside their CTO (full-stack developer) and their UX UI design specialist to translate high-fidelity designs … must highlight you experience with SolidJS. I'll give you a call if you look like a good fit! Front End Developer | Contract | SolidJS | Remote | Outside IR35 | £400-£500 per day More ❯

becoming the go-to AI education platform for all major exams worldwide. The Role We're looking for a talented full-stack developer with a passion for exceptional mobile experiences and interaction design. You'll craft beautiful, engaging user experiences that rival the best consumer apps … out of 5 days a week to our office in Kings Cross, with Wednesday being work from home Ideal Candidate Design-Developer Hybrid : Someone who thinks like both a developer and an interaction designer Game/Gamification Background : Experience in gamified applications More ❯