Senior Frontend Engineer

Umbrel; Poland; On-site; PLN 210,792 - 295,109; Full time

Job summary

A tech company based in Poland is looking for a Frontend Engineering Lead to manage the development of their web UI and first-party apps. Candidates should excel in React and TypeScript, and be passionate about shipping polished, user-friendly interfaces. The ideal applicant can effectively collaborate with designers, communicate clearly in writing, and possesses strong judgment for product decisions. This is an exciting opportunity to shape user experiences in a dynamic environment.

Qualifications

• Experience with React and TypeScript.
• Ability to improve designs based on reality.
• Strong product judgment.
• Experience communicating asynchronously and giving feedback.

Responsibilities

• Lead frontend engineering and own product surfaces.
• Ship polished, accessible interfaces.
• Write clear, readable code and tests.
• Prototype and iterate on designs.

Skills

React

TypeScript

Figma

API design

Microcopy

Job description

In this role, you will lead the frontend engineering at Umbrel, and own major product surfaces in umbrelOS (web UI), our first‑party apps, and our website.

We hope you are someone who:

• Treats Figma as a contract you’ll honor in code, and you’ll improve it when the reality demands.
• Ships polished, accessible interfaces in React + TypeScript (Tailwind, Shadcn, Radix).
• Sweats the last 5%: empty states, errors, skeletons, loading strategies, and microcopy that reduces cognitive load.
• Uses motion to communicate state (not decorate it): consistent easing/durations and meaningful transitions.
• Thinks in systems: API‑design, theming, responsive scales, and components that age well.
• Writes clear, readable code and tests, and leaves the codebase calmer than you found it.
• Can take a vague problem → write a short design doc → prototype in code → ship in small, reversible steps.
• Partners with design early: you’ll prototype, tweak spacing/typography/easing, and treat copy as part of the UI.
• Communicates crisply in writing (we’re async‑first) and gives kind, candid feedback.
• Has strong product judgment. Knows when to refine and when to press “ship.”