Frontend Developer — UX/UI-First

apartmentART2HIRE placeWarszawa calendar_month 

Our client, is a global leader in the development, integration, and implementation of advanced physical and cybersecurity, intelligence, and IT solutions, delivering complete end-to-end solutions on the enterprise and national levels. They are now looking for an experienced Frontend Developer — UX/UI-First (Designer Developer).

Location: Europe
Type: Remote, Full-time
Start date: ASAP

About the Role:

This role requires a highly experienced UX/UI-first frontend developer — ideally someone who started as a UX/UI designer and moved into development. You care deeply about usability and polish, and you can take a flow from concept design production UI quickly.

You'll use Cursor to implement and iterate your own designs efficiently.

Responsibilities:

  • Own the UI/UX for key product areas: dashboards, learning flows, content editors, assessments, analytics, and AI-driven experiences.
  • Design and implement interfaces in React, using React Query for data fetching/caching and app state synchronization.
  • Use Cursor as a core part of your workflow to translate designs into clean, scalable components quickly.
  • Build and maintain a consistent component system (reusable patterns, UI states, accessibility, responsiveness).
  • Collaborate with backend to integrate APIs with great UX (loading/error states, optimistic updates, graceful edge cases).
  • Continuously improve usability through iteration: simplifying flows, reducing friction, improving clarity and completion rates.
  • Ensure high quality: performance, responsiveness, cross-browser behavior, and pixel-level polish.

Requirements:

  • Strong experience building production apps with React.
  • Strong experience with React Query (caching, invalidation, pagination, optimistic updates, etc.).
  • Strong UX/UI background: you understand product UX, visual hierarchy, spacing, typography, interaction design, and accessibility.
  • Proven ability to design and ship complete features (not just implement tickets).
  • Excellent communication and product sense: you can argue for UX improvements and make tradeoffs.

Preferred:

  • EdTech experience (learning flows, content delivery, assessments/quizzes, progress tracking, analytics).
  • Experience with complex UIs (editors, drag/drop, dashboards, real-time or collaborative interactions).
  • Familiarity with design tools like Figma and turning systems into reusable UI.
  • JavaScript, component libraries/design systems, and frontend testing.
  • Experience using Cursor (or similar AI coding tools) to speed up implementation while keeping code quality high.

What success looks like

A UI that feels premium: intuitive, fast, consistent, and polished.

Learning experiences that reduce confusion and increase completion.

A scalable component system that speeds up shipping without losing quality.

Strong collaboration with backend so features feel seamless end-to-end.

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