In the table top role playing game, Hc Svnt Dracones, Grey Polf's day job is in the construction industry when not taking on more risky contracts. It's a field shared by their player, as they work in that field too!
He is stationed on mars most the time, in a Dracoloup corp town that's currently designated Haven. It's a project name, as the city is incomplete.
The job pays well, but Gey is an adventurous sort that takes on more dangerous side contracts for the chance of unusual encounters. Of course the extra money to rapidly pursue his personal goals with is always nice.