•••••• is a mobile game development company, creator of Happy Color. We are looking for a Flutter Developer to work on our flagship project and new projects.
Responsibilities:
- Develop and maintain high-quality Flutter applications with a focus on performance, stability, and clean architecture.
- Implement adaptive, responsive UI and complex animations with pixel-perfect precision.
- Design modular and testable architectures.
- Identify and fix performance bottlenecks (scrolling, rendering, rebuilds).
- Collaborate closely with designers and backend engineers to deliver smooth UX across iOS and Android.
- Continuously improve code quality through reviews, refactoring, and automated testing.
Requirements:
- 4+ years of Flutter/Dart experience; solid understanding of widget lifecycle, state management, and animation system.
- Strong knowledge of Flutter SDK; proficiency in Dart (async programming, isolates, generics, mixins).
- Experience building custom UI components, pixel-perfect layouts, and smooth 60/120 FPS animations.
- Deep understanding of Bloc / Cubit / Provider and clean architectural principles (SOLID, Clean Architecture).
- Hands-on experience with Flutter DevTools for performance profiling and optimization.
- Ability to integrate Firebase, analytics, in-app purchases, and push notifications; understanding of Android/iOS ecosystems and platform channels.
- Experience writing and maintaining unit and integration tests. Russian - C1/higher, English - B1+.
What we offer:
- Competitive salary and benefits package.
- Flexible working hours and office (Warsaw) or remote work options.
- Career growth and professional development opportunities; inclusive company culture.