Work / Working in Poznań - competitive salary? (customer service related to languages) [2]

I'm from Spain and I am looking for a job in Poznań, Poland. I mostly find offers for customer service since I am looking for things related to languages (also checking about teaching spanish). I have a degree in law but I don't find much about it, and long story short I don't give a **** about it and about law.

My problem is that I usually find things with 'competitive salary'. What is the normal (minimum) salary for this jobs, or how much would I need to survive modestly in Poznań?

Also, what are good websites for finding a room in Poznań? I will happily share a flat with people since I'm going on my own

Language / What is the difference between jeść and jadać? [10]

As far as I know both mean to eat. Thanks!