Support Manager, trumpet player, and sort of the technical go-to guy.
Mattias is the guy answering your e-mails and helping you with whatever problems you might have. There are no issues that he hasn't seen before so if you just follow his instructions everything will get sorted out.
At night he's usually seen with a soda (Trocadero, a speciality from northern Sweden) engineering behind a live console or playing some kind of game with very small figures or something like that. As long as he has a steady supply of soda he can keep going forever.