Programming languages: Visual Basic, C++, C#, Java
Web-programming: J2EE, PHP5
Web-design: JQuery, CSS.
PHP: Zend Framework, CakePHP, Symfony framework, Smarty, Joomla!, WordPress
DBMS: Oracle 9,10,11, SQL Server 2005, MaxDB, MySQL
OS: Debian, ASP Linux, Windows family.
Olap: Mondrian, MSAS.
Office technologies: MS Office, POI.
Reporting: FastReport, Crystal Reports, Pentaho Reporting.
ERP: 1C Enterprise 8.x.
Components: COM, COM+, CORBA.
Modeling: UML.
Networking: NS-2.