If his friends are engineers that's, uh, believable. It depends on the kind of engineer of course, but they are certainly like that. The question is if they're high-functioning or not.
I always think of the SMBC "old physicist" comic: https://www.smbc-comics.com/comic/2012-03-21
"High-functioning" is contextual for most autistic people. (The trick is to remain in those contexts, while developing skills to push the boundary a bit further out: get good enough at it, and even your closest friends will say "wow, that meltdown came out of nowhere!".)