Android, Android NDK, Java, Kotlin, JNI, C, C++, Core Java, React Native, Rx Java, JDBC, Coroutines, Jetpack Components, Compose, HTML5, XML, Junit, Mockito, Espresso, Mac OS, Windows, Linux Ubantu, Logcat, DDMS, Android Shell, SQL, SQLite, Room, Eclipse, Android Studio, Visual Studio, IntelliJ IDEA, Git, GitHub, Source Tree, Bitbucket, SVN, Coroutines, Rx Java, Retrofit, Volley, OkHttp, Firebase, GlassBox, Adobe Ensighten Manage, Glide, Picaso, Hilt, Dagger2, Branch IO, Appsflyer, Payeezy, Braintree, ChatIO, LivePerson, Medallia, Launch Darkly, Webrtc, JIRA, Jenkins, Gradle, Maven, Ant, Wireshark, App center, Teigha, Crashlatics, asmack, Daon, V-Guard