• Database: Oracle 10g/11g, MySQL 5, MS SQL Server 2000/2008,PostgreSQL 9.2 • Operation system: Windows 7, Ubuntu 13.10 • Programming: C#, PL/SQL, Delphi, PHP • Web: HTML, CSS, JavaScript, jQuery • Software engineering: OOP • IDE: Netbeans, Oracle SQL Developer, Toad, Visual Studio 2010 . • SVN: Bitbucket