Senior Design Engineer
$80,000–$120,000 year
Remote · London, England, United Kingdom or GB
Job Summary
Join StackOne as a Senior Design Engineer and be the authority on UX, focusing on front-end craft and design systems. You'll own the component library, drive our micro-frontend architecture, and ensure optimal performance and aesthetics in our platform. Responsibilities include collaborating with designers, shipping pixel-perfect UIs primarily using React, optimizing performance, maintaining internal tooling, and championing design quality. Required qualifications include 4+ years in front-end engineering, expertise in React and TypeScript, strong CSS skills, and experience with performance tuning and component libraries. Nice-to-haves include familiarity with Svelte and B2B developer tools.
Required Qualifications
- 4+ yrs professional front-end engineering with a portfolio that focus on the details
- React & TypeScript at production scale; comfortable with hooks, suspense, and server components
- Deep CSS fluency (Tailwind or equivalent) and experience of modern browser APIs
- Proven track record building or migrating component libraries/design systems
- Strong performance tuning instincts: Lighthouse, Core Web Vitals, bundle analysis, code-splitting
- Familiarity with monorepo tooling (NX or Turborepo) and micro-frontend patterns
- Ability to dive into back-end code (Node, React-router, sveltekit) to remove perf bottlenecks, instrument metrics, or adjust API shape
Desired Qualifications
- Svelte, Web Components, or other framework experimentation
- Experience with auth flows (OAuth2, OpenID Connect) and secure front-end patterns
- Web Motion & animation chops
- Prior work on B2B developer tools or dashboards at seed-to-Series-B stage
Additional Requirements
- We believe diversity drives innovation. We encourage individuals from all backgrounds to apply. As an equal-opportunity employer, we celebrate diversity and are committed to creating an inclusive environment for all employees.
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