Product Engineer / Warsaw

Product Engineer Hybrid from Warsaw – 2 days per week in the office We’re looking for a Product Engineer who blends frontend expertise with a product‑centric mindset. You’ll be working in a hybrid model from Warsaw (2 days a week onsite), directly shaping both the technical and user experience sides of our product. What you bring: Deep experience with React and TypeScript — hooks, state management, modern patterns. Strong UX/UI skills — comfortable with Figma/Sketch, wireframing, prototyping, and user flows. Solid CSS skills (CSS‑in‑JS or utility frameworks), responsive design, cross‑browser compatibility. Testing discipline using Playwright (E2E) and testing‑library/Jest (unit/integration). Accessibility knowledge — WCAG, semantic HTML, ARIA best practices. Ability to define and evolve a design system and component library. Experience integrating REST/gRPC/GraphQL APIs — handling auth, caching, and error states. Practical understanding of performance profiling, code splitting, and CI/CD for frontend apps. Clear communication, user empathy, and the ability to drive work from discovery through delivery. Nice to have: Data visualization (e.g., D3, OpenLayers), Storybook‑driven development, analytics/telemetry, and basic backend awareness for smooth end‑to‑end collaboration.