>>1559852You will not get a job if you know too much about bikes. You should know how to do normal maintenance, tune ups, and the big one now is change brake fluid. That's it. Just basic competence with tools beyond that.
I'm an engineering student and also hobbyist framebuilder, so I know a decent amount about bikes. I wanted to do the bike shop part time job during school before I got a real job and listed all my non-shop experience. Interview was a bunch of gotcha type questions, which I thought I pretty much all answered correctly so I thought I did well. Basically what happened was they hired another student with basically no experience over me because the head mechanic couldn't lord his knowledge over me and be the smartest person in the room. Apparently, according to the other people who volunteer at the campus co-op, there is a history of this and they never hire engineering students as mechanics.