Frontend Developer

November 4, 2026

Middle

Warszawa, Poland

Indeed

Keep in mind

Original vacancy is in Polish
You will likely need Polish for the job. The employer can confirm

Description

A Frontend Developer is sought to evolve a popular eCommerce platform. The role focuses on implementing a new React-based framework for mobile solutions and migrating ShowProduct components so vertical teams can build interactive views with standard frontend skills. The framework is at an early stage and requires completing selected UI functionalities together with the platform team. The project runs for six months with a possible extension, starting 01.12.2026.

Responsibilities

Implement a new React-based framework for mobile solutions and migrate ShowProduct components
Enable vertical teams to build interactive views using standard frontend skills, reducing dependence on mobile development
Complete selected UI functionalities of the early-stage framework in cooperation with the platform team

Requirements

Commercial experience building frontend applications with JavaScript/TypeScript
Practical knowledge of React, JSX, the component model and state management
Ability to analyze complex code, component dependencies and edge cases before making changes
Experience testing components and diagnosing rendering problems
Experience with migrations of applications, component libraries and microfrontend architecture
Knowledge of A/B tests, component variants and frontend performance metrics
Ability to use coding agents and evaluate and fix generated code
Experience with React Native, UI migrations and migration automation (scripts, codemods, AI agents), plus knowledge of iOS or Android platforms