Work / Work in Poland after finishing university in the UK (business management) [3]

Hello, recently I've been considering what i want to do after i finish university, going back to Poland seems like a good idea for non-work related reasons, as for work related, I will hopefully gain a degree in business management from a decently high ranking UK university, I wanted to know what kind of jobs I would be looking to apply for, specifically in Warsaw and would being fluent in both English and Polish be of any large advantage.

Additionally what kind of starting salary would be possible with a degree like this? if anyone has had a similar experience.

This is my first thread here, so please state any improvements or any details to answer any of my questions, thank you for reading!