We are an international product technology company developing consumer-facing mobile applications for a global audience.

We are looking for an experienced Flutter Developer to join our mobile engineering team and work on high-quality, performance-focused applications for iOS and Android.

What You’ll Do

Develop and maintain cross-platform mobile applications using Flutter and Dart.
Build adaptive, responsive interfaces and complex animations with pixel-perfect precision.
Design modular, scalable, and testable application architecture.
Identify and resolve performance issues related to rendering, scrolling, rebuilds, and memory usage.
Collaborate with Design and Backend teams to deliver a smooth user experience across iOS and Android.
Improve code quality through code reviews, refactoring, and automated testing.
Integrate analytics, in-app purchases, push notifications, and other third-party services.

Requirements

4+ years of commercial experience with Flutter / Dart.
Strong knowledge of Flutter SDK, widget lifecycle, state management, and animation systems.
Advanced Dart skills, including asynchronous programming, isolates, generics, and mixins.
Experience building custom UI components, pixel-perfect layouts, and smooth 60/120 FPS animations.
Strong knowledge of Bloc, Cubit, or Provider.
Good understanding of SOLID and Clean Architecture principles.
Hands-on experience with Flutter DevTools and performance profiling.
Experience with Firebase, analytics, in-app purchases, and push notifications.
Understanding of iOS and Android ecosystems and platform channels for native integrations.
Experience with unit and integration testing.
Russian — C1+.
English — B1+.

Nice to Have

Experience with complex consumer-facing mobile applications.
Strong understanding of mobile application performance and optimization.
Experience building highly interactive interfaces and custom animations.

What We Offer

Competitive compensation.
Full-time employment via B2B or local employment contract.
Hybrid work in Warsaw.
Flexible working hours.
Opportunity to work on technically challenging mobile applications.
Professional growth within an international product team.