I'd likely fail that filter, but not for love of baroque fp purity. my career has largely tended to be at the bottom of the stack, building the bricks that other team members use to build features, and I would be excited about ocaml because I think it gives you good tools to build solid and composable components. I would also do good work in the C part of the codebase if needed, I just wouldn't be excited about getting to work in C.