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October 1, 2026

Senior Frontend Engineer (React/TypeScript)

Senior • Remote

269,346 - 346,302 PLN/yr

Warsaw, Poland

Quick Facts

  • Role: Senior Frontend Engineer (React/TypeScript)

Description

Own end-to-end frontend features, from early product conversations through shipped production UI. Maintain and improve a multi-year React/TypeScript codebase while partnering with product and business stakeholders to deliver higher quality, speed, and accessibility. Build rapid, credible prototypes using AI coding tools, ensuring outputs stay reviewable.

Responsibilities

  • Deliver own frontend features end to end, including parts nobody assigned

  • Build quick, credible prototypes to help the team choose direction before committing

  • Work directly with product and business stakeholders to refine questions that change the spec

  • Push back on specifications and API designs when they make the frontend worse

  • Keep a several-year-old React codebase healthy so it remains pleasant to work in

  • Improve UI quality, performance, and accessibility

  • Turn designs and rough sketches into interfaces that look right on every screen

  • Prototype and ship faster with AI coding tools while keeping output reviewable

  • Review code and participate in technical decisions in a small senior frontend team

Requirements

  • 5+ years of experience building production web applications

  • Deep knowledge of React (rendering behavior, state management trade-offs)

  • Strong TypeScript skills

  • Solid CSS and layout skills

  • Experience consuming and shaping REST APIs

  • Daily use of AI coding tools as a core part of development

  • Ability to build faster working prototypes with AI and explain concretely how you delegate, write, and review

  • Working knowledge of AI failure modes and habits to catch issues (e.g., plausible-but-wrong code, scope drift)

  • Experience owning frontend work in a small team or startup

  • Ability to communicate effectively with non-technical stakeholders

  • Availability for at least 3 hours daily overlap with US Eastern Time

  • Professional spoken and written English

Benefits

  • Take features from concept to production while influencing product direction

  • Work in a small senior frontend team with direct collaboration

  • Use AI coding tools to prototype and ship faster with reviewable output

  • Focus on improving quality, performance, and accessibility in a real production UI

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