I develop, improve, and maintain production-ready Android and Flutter applications. I can build new features, fix bugs and crashes, integrate REST APIs and Firebase, implement authentication, subscriptions, in-app purchases, notifications, background services, local databases, and backend communication.

I work with Java, Kotlin, Dart, Android SDK, Flutter, SQL, and Google Play services. My process includes reviewing requirements, planning the implementation, writing maintainable code, testing key user flows, and delivering clear documentation.

I can help with: • New Android and Flutter applications • Bug fixing and performance improvements • REST API and backend integration • Firebase and authentication • Subscriptions and Google Play Billing • Notifications and background services • Application maintenance and Google Play release support