I do have some FX experience working for banks but I'm not really looking to work with bitcoin myself TBH. I just wondered how much activity there is and if I'd pop up in any database search from head hunters and get included in one of their automated emails. A bit like scouring patent applications for clues as to whether to buys shares in Apple/Google.
I dont understand your approach. If a bank or whoever, wants BTC skills, they will go to market and advertise it. You taylor your CV to the position you're applying for.
BTC apis are just REST / Json, which nearly every developer has experience with.