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
(Desirable) Svelte, Web Components, or other framework experimentation
(Desirable) Experience with auth flows (OAuth2, OpenID Connect) and secure front-end patterns
(Desirable) Web Motion & animation chops
(Desirable) Prior work on B2B developer tools or dashboards at seed-to-Series-B stage
What the job involves
StackOne's product experience is our brand. As our first dedicated UX Engineer you will be the in-house authority on taste, polish, and performance
You will own the component library, shape our micro-frontend architecture, and ensure that every pixel, motion, and millisecond of latency makes customers feel like they're using the best-engineered platform on the market
80 % Front-end craft & design systems
20 % API-aware performance engineering
Collaborate with our Designer to define & steward our design system - set the visual language, build reusable primitives, and maintain libraries that power every StackOne user interfaces
Ship pixel-perfect UIs - React (primarily) plus; own theming, performance, and thoughtful motion
Make performance a feature - instrument Core Web Vitals, budget bundle sizes, optimise hydration patterns, and chase performance where it matters
Provide and maintain internal tooling as well as AI rules to allow every technical team to contribute to the front-end while aligning with the best practices you will help set
Prototype & validate - turn product ideas into interactive proofs-of-concept that help PMs and designers converge on the right solution fast
Champion taste & detail - host design-quality critiques, stamp out visual debt, and be the go-to voice when "good enough" isn't