• Microsoft Access, MySQL, Oracle (8i,9i), MS SQL Server 2000.
• C, C++, Visual Basic 6, VBA, Java, J2EE, ABAP/4, Visual C++.
• SAP R/3 (PP, MM, CRM).
• MFC, JFC, MVC (Struts, Tiles), DAO, Java Web Server, Apache.
• Windows 9x/2K/XP/NT, Linux, Solaris, Macintosh.
• Eclipse 2.0~3.1, JBuilder, Visual Studio 6.0, Microsoft Office.
• Microsoft .NET, Embedded SDK 2.4, Net weaver.
• Tomcat, Apache Web Server, JBoss 4.0., Application Server.
• JSP, ASP, VBScript, XML, XHTML, XSL, WSDL, CGI/Perl, PHP.
• Object Oriented Analysis & Design (UML).

Engineering:

• CATIA V5R16, CATIA V5R14 Customization, DMU Navigator, I-deas, Unigraphics, Pro/engineer, Solidworks, CAD Data conversion.