> Markdown version of [/jobs/ext/2797597-senior-frontend-engineer](https://www.wearedevelopers.com/jobs/ext/2797597-senior-frontend-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Frontend Engineer - **Company:** Xapien - **Location:** Greater London, UK - **Experience:** Expert - **Salary:** £12,000.0 - **Contract:** Permanent contract - **Skills:** Clean Code Principles, HTML, Application Programming Interfaces (APIs), Component-Based Software Engineering, Cascading Style Sheets (CSS), Software as a Service, Software Quality, Code Review, Software Debugging, Design of User Interfaces, TypeScript, Web Performance Optimization, Web Standards, Tailwind, ReactJS, Pixel Perfect, Backend, Webpack, Build Tools, Front End Software Development - **Published:** September 8, 2026 - **Apply:** https://www.collegerecruiter.com/job/2840619503-senior-frontend-engineer ## About the Role * 5+ years of professional frontend engineering experience * Deep understanding of HTML, CSS, and web standards * Experience building responsive, accessible user interfaces * Proficiency with modern frontend build tools and workflows * Strong understanding of state management patterns * Experience with component-driven development and design systems * Commitment to testing and code quality * Excellent collaboration and communication skills * Self-driven with ability to work independently and as part of a team, * Experience with our specific stack (Vite, Turbo, Tailwind, Storybook) * Background in SaaS platforms or complex B2B products * Understanding of web performance optimization and monitoring * Familiarity with backend technologies to enable better cross-stack collaboration * Framework: React, TypeScript * Build Tools: Vite, Turbo * Styling: Tailwind CSS * Component Development: Storybook * Testing: Modern testing frameworks ## Description We're hiring Senior Frontend Engineers to join our Core App team. You'll be responsible for building the interfaces and experiences that our users interact with daily, working closely with backend engineers, product managers, designers, and other teams across the organisation. Our frontend stack is modern React with Vite, Turbo, Tailwind CSS, and Storybook. You'll work on everything from core user journeys to sophisticated data visualisations, collaborating with teams across engineering including our Investigations, Platform, and Customer Success teams. What You'll Do * Build responsive, accessible, performant user interfaces using React and modern frontend tooling * Collaborate closely with designers to implement pixel-perfect UIs and great user experiences * Work with backend engineers to design and consume APIs effectively * Write well-tested, maintainable code following established patterns * Contribute to our component library and design system * Participate in code reviews and help maintain frontend standards * Work cross-functionally with other teams to deliver features * Debug and optimize frontend performance * Mentor junior engineers and share knowledge with the team * Build new features and improve existing user journeys ## Related Videos - [But, you're not Facebook](https://www.wearedevelopers.com/videos/378-but-you-re-not-facebook) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Micro Frontends with Module Federation: Why and How?](https://www.wearedevelopers.com/videos/165-micro-frontends-with-module-federation-why-and-how) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [The Eternal Sunshine of the Zero Build Pipeline](https://www.wearedevelopers.com/videos/279-the-eternal-sunshine-of-the-zero-build-pipeline) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) ## Related Articles - [The Best 7 Frontend Frameworks for Developers in 2025](https://www.wearedevelopers.com/magazine/400-the-best-7-frontend-frameworks-for-developers-in-2025) - [25 Essential Tools for Front End Developers](https://www.wearedevelopers.com/magazine/210-25-essential-tools-for-front-end-developers) - [16 Best Free React UI Libraries in 2025](https://www.wearedevelopers.com/magazine/148-16-best-free-react-ui-libraries-in-2025) - [Dev Digest 133 - Back to Front](https://www.wearedevelopers.com/magazine/474-dev-digest-133-back-to-front) - [Frontend Developer Salary in The UK](https://www.wearedevelopers.com/magazine/233-frontend-developer-salary-in-the-uk) - [Top 7 CSS Frameworks in 2025](https://www.wearedevelopers.com/magazine/362-top-7-css-frameworks-in-2025)