Also what are the chances of a foreigner getting such a job in poland and is there many oppotunites for finance graduates in poland???
Depends on what kind of school you finished abroad, where you worked abroad.
If you have big 4 experience they lust, and pay you quite well to reward foreign experience. But your 1 yr experience is equivalent to almost an internship, so I wouldn't count it as that much.
Have 5-7yrs of big 4 experience in actg, and you'll get 30-35,000pln a month.