.NET: C#, ASP.NET, Windows Forms, WCF, WF, LINQ, NHibernate, NUnit, MSBuild
Java: J2SE, J2EE, JSP, Struts, Tomcat, Hibernate, JUnit, Ant
Web Technologies: CSS, HTML, JavaScript, XML, XSLT
Other Languages: C, C++, Python and Visual Basic
Other Languages: Haskell, Objective-C and PHP
Methodologies: Design Patterns (GoF), UML, Version Control (mainly Subversion)
Operating Systems: Windows and Mac OSX
Operating Systems: Unix, Linux and Solaris