26 to 50 of 60 Senior Front-End Engineer (Client-Side Engineer) Jobs in London

Insightful Technology in London on-site is looking for an experienced Front-end Developer to design and build intuitive, responsive web applications using React and TypeScript. You will own frontend features from initial requirements and design through testing, deployment and ongoing improvement ...

Gamingtec in London is seeking a Senior Frontend Developer (React & React Native) to lead frontend engineering across web and mobile platforms. You will own UI quality, collaborate with product and back-end … teams, and ship robust SPA/PWA experiences with modern tooling. You should have 7+ years as a Front-End Engineer, mastery of React 18+ with TS, Redux/MobX/Zustand, REST/GraphQL ...

Applied Data Science Partners Ltd. seeks a Senior UX Engineer to bridge design and frontend development, delivering accessible, high-performance experiences. You will lead prototyping, champion design systems, and mentor teammates in UI engineering best practices. Responsibilities include translating designs into production ...

Fresha is seeking a Senior Frontend Engineer to join our global engineering team in London. You will design, build, and ship user-facing features using React and TypeScript, collaborating with cross-functional teammates to deliver high-quality product experiences. You’ll leverage ...

Group is seeking a Senior Frontend Engineer specialising in 3D graphics, digital twins and geospatial visualisation. The role focuses on building high-performance 3D digital twin applications and interactive mapping platforms with real-time data and AI-driven analytics. You will work ...

Arcus Search is seeking a Senior Frontend Engineer to own and evolve a production React application across web and mobile platforms. You will collaborate closely with backend and ML engineers, shape the frontend architecture, and drive the release process ...

Faculty is seeking a Senior Frontend Engineer to partner with cross-functional teams and transform AI and data science models into client-facing software. You will champion modern frontend engineering, mentor engineers, and contribute to a growing frontend community. ...

Rightmove is hiring a Senior Software Engineer II (Frontend) for the Search Core team in London. This hybrid role requires collaboration with Product, Design and Engineering to build scalable, high-quality frontend experiences for the UK's leading property platform. You will ...

HASH is hiring a senior frontend engineer in London or Berlin to own end-to-end delivery of world-modeling and AI-native interface components. You’ll shape frontend architecture and collaborate with ...

Entrust is seeking a Senior Front End Engineer to evolve our product experiences. You will work with designers, product managers, and fellow engineers to deliver robust front-end solutions using React and modern architectural patterns. You will prototype across devices, ensure accessibility, and contribute to our test automation ...

A renewable energy startup located in London is seeking a skilled Web Developer to create and maintain responsive applications using modern technologies like React and TypeScript. The ideal candidate should have over 5 years of ...

Clear Street in London is seeking a Senior Software Engineer focused on Front End for Studio (Core) to build scalable, API-driven payments platforms and modern UX. You will translate product needs into robust ...

innovation, LSEG is a place where everyone can grow, develop and fulfil your potential with meaningful careers. Role Profile We are seeking a Senior Frontend Developer to join our Customers Identity & Access Management team at LSEG. You will play a pivotal role in maintaining and evolving our JavaScript ...

Perk, a global company headquartered in London, is hiring a Senior Front End Engineer for Perk Events. You will own the end-to-end experiences ...

JPMorganChase in London seeks a Senior Lead Software Engineer to lead the delivery of secure, scalable technology … Equities Sales and Trading Technology group. You will guide cross-functional teams, drive architectural decisions, and implement robust software across front-end and back-end stacks. The role emphasizes cloud-native delivery, performance optimization, and high-quality production ...

Senior Front End Software Engineer in Holborn, London, is sought to deliver data-heavy web apps using D3, React and modern JavaScript. You will collaborate in a close-knit team … craft robust, scalable UI solutions for a major consultancy's digital transformation. The role requires 7–10 years of front-end delivery experience, strong React.js and Redux-like workflows, and hands-on data visualization with D3. You will work with cutting-edge ...

leading technology company in Greater London is looking for a Senior Front End Software Engineer to develop sophisticated applications on the Palantir Foundry platform. This role involves architecting and developing user interfaces and tools ...

Bond Williams seeks a Senior Frontend Design Engineer to join on an initial 3-month contract. You will bridge product design and frontend engineering, taking ideas from wireframes through to production-ready applications on a London hybrid/remote setup. We value ...

Co. in London is seeking a Software Engineer to join the accelerator, building scalable front-end solutions in TypeScript with React to bring innovative financial products to customers. You will work in cross-functional squads, embrace ...

leading global financial services firm in London seeks a Senior Lead Software Engineer to join an agile team focused on enhancing and delivering top-notch technology products. The successful candidate will have 5+ years of experience, excel in software engineering concepts ...

Pigment is seeking a senior hands-on Frontend Engineer who will also take on people management within the Reporting & Collaboration community. You will design, build and ship production features while guiding engineers and collaborating with Product and Design. This IC with leadership ...

Fullstack Engineers for an energy-sector project delivering AI-enabled capabilities on Azure. Lead the design of scalable front-end architectures and collaborate with backend, cloud, and AI teams to ship production-ready applications. Role emphasizes building high-performance ...

Bright Purple Resourcing Ltd is seeking a Frontend Software Engineer (Angular) to join a B2B software business redesigning their client portal. You will lead frontend work, turning ideas into production-ready interfaces in a collaborative product team. Expect a hands-on role ...

Futureheads Recruitment Ltd is seeking a Creative Front End Developer for a fully remote role. You will build high-quality public-facing websites using React, Next.js and ...

Tantilium is building a web-based interface for deploying and observing Kubernetes workloads. You will own the frontend experience from design to production, shaping how the control plane feels in the browser, with Next.js, React ...