Hi, I'm Hans Engel, a WordPress documenter, developer, and tester.
My roles here at the Codex and with WordPress in general:
I speak fluent PHP and constantly document new things about WordPress. I develop plugins; see them here.
Usually I'll be in #wordpress under the name hansengel or hansengel|eee. If I am—for some reason—not there, I can be contacted via email: engel [at] engel [dot] uk [dot] to.
These are the plugins that I have made.