He still does, I think.
Ah, sorry, he doesn't anymore - he worked on SpaceX's Dragon for 7 years and once it was done he worked a bit on Starlink, but I guess he left. They'd want him back, but he's more interested in working on spaceships. SpaceX is working now in Texas on a spaceship that is supposed go the Moon and he's been thinking about that, but he doesn't feel like working for other people for the time being and he has a son in Poland now and lives here. I wonder what he's going to be up to in the future :)
Btw, when he was working on SpaceX's Dragon he saved a Falcon launch, because he managed to find a mistake in the code made by the team working on Falcon - he was sitting for the whole night trying to find out what's wrong - the launch was supposed to happen literally the next day :))
(Oh, and he's a zodiacal Gemini, like me! :D)