Operating systems
- Windows, including mobile and embedded systems;
- Unix/Linux;
- Android;
- iOS;
- Symbian.
Platforms
- Java (J2EE, EJB, SP/JSTL, Struts/Tiles, JBOSS);
- .NET;
- Win32;
- J2ME.
Programming languages
- Java;
- C/C++;
- Objective C;
- C#;
- PHP;
- Python;
- Perl.
DBMS
- Oracle;
- PostgreSQL;
- MSSQL;
- Interbase/Firebird;
- MySQL.
Web
- Wordpress;
- Drupal;
- HTML/CSS;
- JavaScript;
- Adobe Flash.