General:

• Software Developer
• Database Architect
• Distributed Systems
• XML/XSD
• Computer Graphics
• Data/Text Mining
• Knowledge Management
• NoSQL
• AI
• Rule/Flow Engines

Programming Languages:

• C/C++
• Java
• C#
• Objective-C
• PHP
• Python

Databases:

• Oracle
• Mysql
• Postgresql
• MSSQL
• Neo4J

Frameworks:

• JEE
• Servlets/Portlets/JSF/Seam
• Hibernate
• Map-Reduce (Hadoop)
• MQ-Series
• OpenGL
• OpenSG
• Rapidminer
• EIP Apache Camel
• Jboss Drools

Webserver:

• Apache
• Tomcat
• JBoss
• Websphere
• IIS