Development of applications using the stack: Kotlin, Android SDK, Android Architecture Components, Dagger2, Coroutines/RxJava, Android XML/Jetpack Compose, ExoPlayer, Retrofit/Ktor, Room, Firebase (Crashlytics, Config, and others).

Development and maintenance of a native multi-module application using: Kotlin, Android SDK, Dagger2/Koin, Coroutines + Flow, ExoPlayer, Pdfium. I've extracted Analytics tracking into a separate module (AppMetrica and Firebase Analytics). Contributed to the migration of the application to Jetpack Compose and the creation of a shared network module for Android and iOS using KMM (Ktor + kotlinx.serialization).

Development of an MVP for a multi-platform banking application using Kotlin Multiplatform (KMM). Stack: KMM, Ktor, kotlinx.serialization, Android SDK, iOS SDK (UIKit, Foundation), Coroutines.

Developing an Android application: implementing new features and fixing bugs. Stack: Kotlin, Java, Android SDK, Retrofit, Room, working with geolocation, Firebase (Crashlytics, Config, Analytics), WebView. Writing Unit and UI tests.

Native Android application development. Stack: Java, Android SDK, Android Architecture Components, Retrofit, Dagger2, RxJava, Firebase services. Developed a chat using WebSocket protocol. Migrated the application from MVP to MVVM architecture. Started migrating the application to Kotlin and multi-modularity. Proposed a transition to Flutter and converted a couple of screens for demonstration purposes. Organized CI/CD for building and publishing applications.

Development of mobile banking applications for Android and iOS.Android Stack: Java, Android SDK, Dagger2, RxJava, Google Maps, Retrofit.iOS Stack: Swift, UIKit, Foundation, Alamofire, CoreData, Keychain.