11 of 11 Senior Front-End Engineer (Client-Side Engineer) Jobs in the Thames Valley

Role: Senior Frontend Engineer (Angular) 🌍 Location: Banbury – Hybrid (2-3 days a week in office) 💰 Salary: £75,000 🛠 Key Skills: TypeScript, Angular We’re hiring on behalf of a fast-scaling SaaS company in the public safety space and while they’re focused on backend transformation, the real need is YOU: a … Senior Frontend Engineer with strong Angular/TypeScript skills ready to own and rebuild the entire frontend of a critical platform. The current UI is legacy-heavy and built with a custom frontend pattern that frankly, doesn’t follow standard. As the Senior Frontend Engineer … you will get a clean slate to architect and implement a new Angular-based frontend your way, with full ownership and a strong say in UX/UI. Senior Frontend Engineer Responsibilities: Rebuild the frontend from scratch in Angular Define structure, standards, and design direction Own all frontend and UX decisions Collaborate More ❯

Role: Senior Frontend Engineer (Angular) 🌍 Location: Banbury – Hybrid (2-3 days a week in office) 💰 Salary: £75,000 🛠 Key Skills: TypeScript, Angular We’re hiring on behalf of a fast-scaling SaaS company in the public safety space and while they’re focused on backend transformation, the real need is YOU: a … Senior Frontend Engineer with strong Angular/TypeScript skills ready to own and rebuild the entire frontend of a critical platform. The current UI is legacy-heavy and built with a custom frontend pattern that frankly, doesn’t follow standard. As the Senior Frontend Engineer … you will get a clean slate to architect and implement a new Angular-based frontend your way, with full ownership and a strong say in UX/UI. Senior Frontend Engineer Responsibilities: Rebuild the frontend from scratch in Angular Define structure, standards, and design direction Own all frontend and UX decisions Collaborate More ❯

React/TypeScript) Location: Remote (1 day per month in Oxford, UK) Type: Permanent | SaaS | Global Tech Company Are you passionate about building exceptional, scalable front-end applications? Our client — a leading SaaS company based near Oxford — is expanding and looking for a Senior Front … and back-end developers to deliver intuitive, high-performance web applications. 🌟 What You’ll Do Develop, optimise, and maintain high-quality front-end applications using React.js and TypeScript Collaborate with cross-functional teams to bridge the gap between design and technical implementation Contribute to a culture of clean … improvement (Optionally) take on a technical lead role , mentoring others and influencing best practices ✅ What You’ll Bring 5+ years of experience building production-grade front-end software with React.js and TypeScript Strong skills in HTML5 , CSS3 , and RESTful APIs Experience with unit and integration testing Background in SaaS product development 💡 Nice More ❯

Senior Frontend Engineer | Up to £850/day Outside IR35 We are partnered with a well-funded, growing force in the BioTech sector. They are bringing cutting edge, fully customisable technology to critical workflows, enhancing efficiency, reducing errors and reducing workload. They are looking for a highly experienced Senior Frontend … Engineer on a contractual basis: Senior Frontend Engineer Typescript, React based Desireable: Experience with FE testing strategies, large, complex, data-intensive applications and owning best practices (delivery and user-focused) Up to £850/day (Outside IR35) - 6m+ term Hybrid - Central London This isn't an … ordinary Senior Frontend Engineer role; you will be given a large degree of autonomy and infuence over wider technical strategy in a Staff-like capacity as they overcome exciting challenges to further improve their platform. Their backend is largely Python and AWS based (Terraform, CircleCI). Whilst this experience is not required More ❯

React/TypeScript) Location: Remote (1 day per month in Oxford, UK) Type: Permanent SaaS Global Tech Company Are you passionate about building exceptional, scalable front-end applications? Our client a leading SaaS company based near Oxford is expanding and looking for a Senior Front … closely with UX designers and back-end developers to deliver intuitive, high-performance web applications. Develop, optimise, and maintain high-quality front-end applications using React.js and TypeScript Collaborate with cross-functional teams to bridge the gap between design and technical implementation Contribute to a culture of clean … code, testing, and continuous improvement (Optionally) take on a technical lead role , mentoring others and influencing best practices 5+ years of experience building production-grade front-end software with React.js and TypeScript Experience with unit and integration testing Experience with Playwright or other end-to-end More ❯

About the Job Senior Frontend Engineer – London (Victoria) | Hybrid £80k - £110k Are you ready to craft the next generation of data-driven digital experiences for one of Europe’s most technically advanced SaaS innovators? Our client, a pioneer in B2B SaaS solutions , is building “Your Shipping Analytics Supercomputer” , providing cutting … that blends creativity, collaboration, and engineering excellence, ideal for someone who thrives in fast-paced, high-growth environments. What You’ll Bring 5+ years of front-end development experience building large-scale web applications. Expertise in React, TypeScript/JavaScript, HTML, and CSS . A strong appreciation for UI/UX design … AI start-up exit , they’re focusing all their attention on this next big venture. This is an outstanding opportunity to design and deliver the front-end of a platform that’s redefining how businesses interact with data. If you’re a passionate engineer who loves More ❯

Job Role: Senior Software Engineer, Frontend Job Type: Full Time, Permanent Location: London, Hybrid (3 office days a week) Role purpose As a valued member of our engineering team, you will contribute to the development of our new web application, powered by a Headless CMS, using the latest frontend technologies. Working with More ❯

Senior Frontend Engineer – Next.js/React Location: Monument WeWork in London Type: Full-Time About Admanage.ai We’re building the Cursor for ad management. Admanage.ai helps companies launch ads 10x faster on Meta & TikTok. Created by top performance marketers who’ve managed over $50M+ in ad spend. Our mission? Level the playing … profitable, fast-moving, and backed by experience, not just ideas. We commit to GitHub multiple times a day and ship continuously. Why This Role Rocks This is a senior-level frontend role where you’ll design and deliver features that directly impact how the top advertisers launch and manage hundreds of thousands of ads per month. You’ll More ❯

the Machine Learning team to understand the underlying concepts and user flows; however, you are not required or expected to have background in Machine Learning. This is a senior-level role, and we are looking to hire a software engineer with background in product design, UI/UX design, and with a … a startup work environment and wider ecosystem. Why join us? Work in an environment conducting cutting-edge research in AI. An official role title of “Founding Engineer” – make an impact on day one. Competitive salary, equity and benefits package. 28 days + public holidays allowance. Opportunities for professional growth and progression with your career. More ❯

D3/visx · Storybook · Tailwind CSS · Jest · Cypress · Playwright What You Bring 8+ years building and evolving large-scale web applications. Proven track record in front-end architecture (modular codebases, micro-frontends, design systems, scalability). Strong portfolio of data-heavy, real-time UIs and reusable component libraries. Expertise in TypeScript, CSS … and modern testing frameworks. Passion for developer experience, tooling, and mentoring. Degree in Computer Science or equivalent experience. Bonus points for: Open source contributions to front-end tooling, design systems, or data-visualisation libraries. Experience with WebSockets, PWAs, offline support, or design-token pipelines. How They Work Speed with craftsmanship: Continuous delivery … This is a chance to join a hyper-growth company at the forefront of AI-powered collaboration, tackling some of the most exciting challenges in front-end engineering today. Interested? Reach out to Stax for a confidential discussion. Please be advised that, owing to the expected volume of applications, we may only More ❯

Job Description Bits is a UK based Fintech startup backed by Y Combinator (the investor behind Stripe and Airbnb) that promotes financial inclusion. You will be joining a small engineering team (10 ppl) that are all about ownership and commitment. More ❯