(Senior) Frontend Developer with React and Flutter - freelance

Description […] is a trusted partner in digital commerce. The company helps leading brands modernize B2B solutions, marketplaces, and retail ecosystems. Since 2008, it has empowered businesses with cutting-edge technology, AI-powered personalization, and world-class engineering and design teams.

A certified B Corporation®, […] is trusted by major brands including IKEA, VW, OLX, Delivery Hero, Żabka, Wolt, Careem, and Vinted. How freelancing works at […]? As a , you can choose what works well for you.

You decide when, where, and how you work on projects and tasks. We match you with work that fits your skills. Plus, you have access to various opportunities across different industries and companies.

That means you will not only gain more experience, but also develop various skills. But there's more. […] freelancers can benefit from full-time collaboration and really be a part of the team.

So, are you ready to make an impact? Join […], and let's build beautiful software together. Salary range (Senior): up to 188 PLN/h Salary range (Regular): up to 135 PLN/h Engagement: fulltime Working Hours: CET Start date: around mid August 2026 Project duration: 3 months

Min. 3 years of experience for regular role and min. 5 years of experience for senior role React & Flutter: Strong expertise in React (Web) and Flutter (Mobile) development; Design Systems: Proven experience in building, structuring, and maintaining component libraries / design systems; AI-Read