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September 15, 2026

Senior React Developer

Senior • Remote

100 - 110 PLN/yr

Warsaw, Poland

Quick Facts

Role: Build and maintain large-scale React/JavaScript applications; deliver user-facing features in collaboration with product and design.

Description

Partner with product and design to shape solutions, validate assumptions, and deliver user-facing features. Architect, build, and maintain large-scale React and JavaScript applications, including established codebases. Diagnose and resolve complex dependency, build, integration, and cross-browser runtime issues.

Responsibilities

  • Partner with product and design to shape solutions, validate assumptions, and deliver user-facing features
  • Architect, build, and maintain large-scale React and JavaScript applications, including established codebases
  • Diagnose and resolve complex dependency, build, integration, and cross-browser runtime issues
  • Drive automated testing (unit, integration, UI) and maintain CI/CD pipelines through production releases
  • Optimize app performance, handle production monitoring, and contribute to technical design and estimation

Requirements

  • Extensive experience building scalable web applications using React and core JavaScript
  • React architecture, state management, component design, WebViews, caching, and modern web standards
  • CI/CD pipelines, automated testing frameworks, and collaborative Git workflows
  • Product-minded approach with experience working directly with cross-functional design and product teams
  • Strong communication skills suited for remote-first environments

Benefits

  • Production-oriented development with automated testing and CI/CD
  • Cross-functional collaboration with product and design teams

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