I was a member of the Firebug Working Group. I like to program in JavaScript, ColdFusion and PHP.

Currently I am working on improving the Firefox DevTools and a Firefox extension called Regular Expressions Tester (TRex). Furthermore I'm helping to document on the Mozilla Developer Network (MDN) and giving some input to the Inkscape team.

I am also an invited expert of the W3C, providing some feedback in regard of the CSS standards and helping to shape the specifications.