What about mult-rated pilot with engineering studies/exams? Myself.
Now there's something to choose from. I want to fly everything, but rotary is the best love affair.
I do want to get some mechanic/engineer experience on helicopters, but it's not easy to do both in some respect. One can't do two fulltime jobs if flying enough. Not the same for some utility in Canada, Australia etc.
I can't imagine B1.1 engineer flying fulltime as well. It's more of a divide in Europe than, let's say America or Australia and small turbine or piston gear.
I know plenty turbine airliners engineers who went to the front for the dreams, lifestyle and PAY. But that's not in Western Europe, mind you.
Being helicopter pilot and mechanic can be useful for lower time pilots in the job market, but the general advice I'm given is not to try both, for example in Canada, else I'd be slaving like a donkey.
It's very relative and broad. It depends on aircraft type, size, country, type and area of operations etc. Also the person and lifestyle.