Android skills: MVC, multithreading, networking, SMS authorization, Material Design concepts, SQL database interaction with JDBC, soap/wsdl webservices interaction Testing skills: TDD, JUnit, Robolectric Databases: SQLite, H2Database, ObjectBox, Oracle 12c VCS: Git, GitHub, Bitbucket. Software: Android Studio, Astah, Genymotion, JetBrains Datagrip, SoapUI, Kanban Tool Other: XML, Gradle