Core Data, MVVM, Mvp, Multithreading, Autolayout, Android Studio, Typescript, Flutter, Java, Kotlin, Uikit, Android SDK, Core Animation, Mvc, React Native, Swift, Architecture design patterns, Coroutines, RIBs, Apple Push Notifications, Jetpack Compose, Performance memory management, Platform profiling tools, Native iOS development, Native Android development, SwiftUI, GCD, Coordinator, Viper, Combine, Networking concurrency