Разработка приложений и игр под ОС Android
— Android (2.x & 4.x): Fragments API, In-App Billing, AndEngine, Location and Sensors API, SQLite, UI, Services, Maps, ActionBarSherlock, AdMob, TapJoy, Facebook SDK, Google Play Services, Google Play Game Services, Image Processing, Performance Optimization, WebSocket, etc;
— Java Core: Java Core, Multithreading, Collections API, etc;
— Core web: XML, JSON, REST, PHP;
— IDE: Eclipse, IntelliJ IDEA;
— OS: Linux, Windows;
— VCS: Git, SVN;
— Bug/Issue trackers: Jira, Redmine;
— DB: SQL, NoSQL, MongoDB.