12 of 12 Part-Time Senior Front-End Engineer (Client-Side Engineer) Jobs in the UK

Senior Frontend Engineer - JavaScript I'm looking for a Senior Frontend Engineer (React, TypeScript), who is looking to join a fast-growing company where over the last 5 years they have scaled their platform More ❯

📍 Location: Hybrid/Remote/Office-based options available 🕒 Full-time | Competitive Salary + Benefits Are you a front-end expert with a passion for crafting beautiful, intuitive user interfaces? Do you thrive on turning design vision into reality using … to help shape the future of our digital experiences. This role is perfect for someone who’s hands-on with front-end tech, collaborative with cross-functional teams, and thrives in a modern DevOps-driven environment. 🔧 What You’ll Be Doing Build … and Own the Front-End: Implement sleek, high-performance interfaces using HTML, CSS, JavaScript, and frameworks like React or Angular. Component-Driven Development: Create modular, reusable UI components with a focus on maintainability and scalability. Design Collaboration: Partner closely with UX designers More ❯

Join Nscale as a Senior Frontend Engineer! Are you ready to build the next generation of cloud platforms for AI? Nscale is on a mission to challenge the hyperscalers with our vertically integrated GenAI cloud platform. We own the data centers, software … maintain our web-based cloud console, ensuring a consistent user experience across our platform. The ideal candidate has experience with front-end development, CLI design, and cloud platforms. You will write clean, well-tested code that follows modern UI/UX standards … team members, fostering a culture of continuous learning. About You: Must-Have Skills, Experience & Qualifications 5+ years of experience in front-end development (HTML, CSS, JavaScript). Expert-level knowledge of TypeScript. Strong proficiency in React & Next.js. Experience consuming OpenAPI 3.0+ specs More ❯

Senior Front End Engineer - REMOTE/React.js/Typescript/Javascript Key Skills: React.js, Typescript, REST APIs, Javascript ***FULL REMOTE WORKING BUT MUST BE BASED IN UK*** An exciting opportunity is on offer for … a Senior Front End Engineer to work for a innovative and growing SaaS business, with full remote working offered for candidates based in UK. The chosen Senior Front … software as a service) , ideally with start up experience. There is a huge opportunity for a Front End Engineer to progress quickly within this business and take ownership of large parts of the project. Excellent salary More ❯

Senior Front End Engineer - REMOTE/React.js/Typescript/Javascript Key Skills: React.js, Typescript, REST APIs, Javascript ***FULL REMOTE WORKING BUT MUST BE BASED IN UK*** An exciting opportunity is on offer for … a Senior Front End Engineer to work for a innovative and growing SaaS business, with full remote working offered for candidates based in UK. The chosen Senior Front … software as a service) , ideally with start up experience. There is a huge opportunity for a Front End Engineer to progress quickly within this business and take ownership of large parts of the project. Excellent salary More ❯

Senior Front End Engineer - REMOTE/React.js/Typescript/Javascript Key Skills: React.js, Typescript, REST APIs, Javascript ***FULL REMOTE WORKING BUT MUST BE BASED IN UK*** An exciting opportunity is on offer for … a Senior Front End Engineer to work for a innovative and growing SaaS business, with full remote working offered for candidates based in UK. The chosen Senior Front … software as a service) , ideally with start up experience. There is a huge opportunity for a Front End Engineer to progress quickly within this business and take ownership of large parts of the project. Excellent salary More ❯

Senior Front End Engineer - REMOTE/React.js/Typescript/Javascript Key Skills: React.js, Typescript, REST APIs, Javascript ***FULL REMOTE WORKING BUT MUST BE BASED IN UK*** An exciting opportunity is on offer for … a Senior Front End Engineer to work for a innovative and growing SaaS business, with full remote working offered for candidates based in UK. The chosen Senior Front … software as a service) , ideally with start up experience. There is a huge opportunity for a Front End Engineer to progress quickly within this business and take ownership of large parts of the project. Excellent salary More ❯

Senior Front End Engineer - REMOTE/React.js/Typescript/Javascript Key Skills: React.js, Typescript, REST APIs, Javascript ***FULL REMOTE WORKING BUT MUST BE BASED IN UK*** An exciting opportunity is on offer for … a Senior Front End Engineer to work for a innovative and growing SaaS business, with full remote working offered for candidates based in UK. The chosen Senior Front … software as a service) , ideally with start up experience. There is a huge opportunity for a Front End Engineer to progress quickly within this business and take ownership of large parts of the project. Excellent salary More ❯

Senior Front End Engineer - REMOTE/React.js/Typescript/Javascript Key Skills: React.js, Typescript, REST APIs, Javascript ***FULL REMOTE WORKING BUT MUST BE BASED IN UK*** An exciting opportunity is on offer for … a Senior Front End Engineer to work for a innovative and growing SaaS business, with full remote working offered for candidates based in UK. The chosen Senior Front … software as a service) , ideally with start up experience. There is a huge opportunity for a Front End Engineer to progress quickly within this business and take ownership of large parts of the project. Excellent salary More ❯

close to hand for business decisions, and a rigorous use of TDD. Expect continuous deployments, engaging colleagues, and ownership of challenging problems. As Senior Engineer, you will: Use your experience and expertise to guide technology decisions both on a project and company More ❯

Senior Frontend Engineer (Next.js, React Native) I’m working with a fast-paced, tech-focused, global technology platform that’s undergoing a multi-year transformation program to revolutionize its B2C services. Backed by substantial investment and part of a financially stable group More ❯

Product Engineer (Frontend) | £140,000 | TypeScript | Vue/React | Hybrid (1 day a week in London) My client are a cutting-edge AI company revolutionising AI-driven automation by transforming human expertise into trustworthy AI models . Their platform enables businesses to … pioneers, their solutions power AI adoption at Fortune 500 giants such as Sony, Boston Scientific, and Genentech . As a Product Engineer (Frontend) , you'll play a key role in crafting high-fidelity, interactive web applications that bring AI to life. You'll collaborate … If this sounds like your next challenge, click APPLY , and I (Sam Barcia) will be in touch to discuss further! Product Engineer (Frontend) | £140,000 | TypeScript | Vue/React | Hybrid (1 day a week in London More ❯