Requirements: 5+ years of experience with Flutter/Dart. Deep knowledge of Flutter SDK, widget lifecycle, state management, animations, and performance optimization. Proficient in Dart: async, isolates, generics, mixins. Experience creating custom UI components, pixel-perfect interfaces, and smooth 60/120 FPS animations. Knowledge of Bloc/Cubit/Provider, SOLID, and Clean Architecture. Practical experience with Flutter DevTools, Firebase, analytics, in-app purchases, and push notifications. Understanding of Android/iOS and platform channels. Experience writing unit and integration tests. English-B1+.

**Location:**📍Hybrid. Warsaw, Poland.