@DarkTuna
"Rig" (Rigu) is actually what the katakana said in the previous chapter. "Spid" must have been the translator's personal decision. Perhaps they got feedback and changed it to the original only a chapter later. Who knows.
@Lioness94
It could be a company you sign up for that sends you small job opportunities every once in a while
I used to be signed up to a company like that
@Lioness94 - the way he put it, he is some kind of freelancer. There are all kinds of jobs for freelancers - programming, design, art, animation, call center... When it comes to offline jobs, I know civilian sailors work like that.
Or maybe he works for a company that works on a similar approach and doesn't try too hard to fill all of its time. I suspect construction work is like that - it's not every day that somebody has the land and money to build a house.