Hi, I'm Karl. I work for MoCo on the Firefox Testing Engineering Services Team. I started at Mozilla on Mon 2013-02-11.
The projects I'm currently focusing on are listed on my Projects page. They fall into three broad classes: Documentation, load testing of new projects (Kinto and friends), and older, infrastructure/plumbing-type maintenance (Sync and friends, Location Services.) Officially I sit in the Cloud Services group in SF, at desk 7010. (When I'm in MTV, I usually sit over by Delphine Lebédel on the away-from-Evelyn-Avenue side of the second floor.)
My heavy meeting days are Monday (in SFO) and Wednesday (in MTV.) I try to keep Tuesday and Friday open for heads-down work, and Thursday for collaborative/whiteboard activity. If I'm not at my desk (especially on Tuesday or Friday), I'm probably either working remotely or in a conference room somewhere, searching for quiet. I keep my calendar up-to-date; a calendar invite is by far the best way to book some of my time.
When I'm in the US/Pacific time zone, I try to keep the 8-9am and 9-10am time slots available for meetings with Europeans, and 3-4pm and 4-5pm open for Australians and Kiwis.
More information will appear here as I have time to update.