Software developer at yWorks GmbH.
My interests are mostly HCI, Interaction Design and UX. Recently I18n joined that list as well. That does not mean I have profound knowledge in either of those fields, just that I am interested in them.
Note: People contacting me outside SO/SE is fine, but for discussing their own questions or answers SO already provides a mechanism, namely edits and comments. So please use those things first.
I do hang around on Freenode as Hypftier, though.