MS Visual Studio .NET (C#, VB, ASP)
MS Visual Basic
MS Visual C++
MS Visual FoxPro
MS Office und VBA inkl. Access
SQL-Server
Oracle
Teradata
DB2
dBase, mySql, CodeBase
intellution Dynamics, iFIX HMI/SCADA
prodat

Team Foundation Server, ClearCase, PVCS, SourceSafe

Rational Rose, Visio