Heorhii Z.

🚀 Senior Mobile Developer (Flutter & Native Android) I build high-quality mobile applications using Flutter and native Android (Kotlin) with a strong focus on performance, scalability, and clean architecture. Over the past years I have worked on complex production applications including mobile platforms with real-time APIs, Firebase integrations, payment systems, reservations, offers systems, and interactive UI experiences. I can help you with the full mobile development cycle: • Designing clean and scalable mobile architecture • Building Flutter cross-platform applications • Developing native Android apps using Kotlin & Jetpack Compose • Integrating REST APIs and backend services • Firebase integration (Auth, Firestore, Analytics, Crashlytics, Push Notifications) • Implementing modern Android Jetpack components • Performance optimization and debugging • Publishing apps to Google Play and App Store ⚙️ Core Technologies • Flutter / Dart • Kotlin / Java • Jetpack Compose • Android Jetpack (ViewModel, Navigation, Room) • Coroutines & Flow • REST APIs / JSON • Firebase services 🧰 Libraries & Tools • Retrofit / OkHttp • Dio (Flutter networking) • Hilt / Dagger (Dependency Injection) • Gson / Moshi / Kotlin Serialization • SQLite / Room • Google Maps API • Deep links / Dynamic links • Push notifications 🧑‍💻 Development Tools • Android Studio • IntelliJ IDEA • Git / GitHub / GitLab I focus on writing clean, maintainable, and well-structured code, following modern development practices such as Clean Architecture, MVVM/MVI patterns, and modular project structure. If you need a developer who can quickly understand complex systems and deliver reliable mobile solutions, feel free to contact me. Let’s build something great