Aká bola práca Boba?

It's impossible to know what "Bob's job" is without more information. "Bob" is a very common name, and there are countless people named Bob with different jobs.

To help me understand what you're asking, please provide more context:

* Kto je Bob? Je to konkrétna osoba, ktorú máte na mysli? Ak áno, povedzte mi o ňom viac.

* Aký je kontext vašej otázky? Is this a question about a specific story, movie, or piece of information?

With more information, I can hopefully give you a more helpful answer.