Oracle
PL/SQL, Forms, Resports, Designer, Formsgenerierung, Portal, WebForms, Migration, ADF, JHeadStart, Spatial, Replication, DWH, Business Intelligence, BI Publisher, JDeveloper, etc.

Java
JSP, EJB, Servlets, Applets, JSF, JMS, Apache, Tomcat, JBoss, OpenCms, Eclipse, HTML, XML, XSLT, XSD, JSTL, JDO, Hibernate, Struts, Xerces, Xalan, Castor, hssf, Spring, Tidy, SOAP, RMI, Portlets (JSR-168), Oracle ADF, etc.

Technologies
SOA, Web Content Management, Mobile Computing, Open Source, Web Services, Portal/Portlet Technologies, MS .NET Framework, etc.

Products and tools
Apache (WebServer, Tomcat, JetSpeed, Cocoon, Turbine, etc.), OpenCms, Oracle (Designer, Forms, Reports, Portal, AS, etc. ), Eclipse, Lucene, etc.

Operating Systems
Linux, Unix, Windows, PocketPC, OS/400, VMS, OS/390, etc.

Datenbases
Oracle, mySQL, postgreSQL, DB2, Informix, Caché, SQL Server, Access, Paradox, Adabas, Sybase, OLAP-Technologien, Cognos, Crystal Reports, etc.