I would expect LOT to be the least welcoming carrier in Poland for foreigners. Plenty of other options there fortunately, usually better than LOT anyway (despite being on the lower end in Europe - I'm talking Ryr, Wizz, Enter etc.). Then there are a couple of executive gigs in Warsaw, and if you dig that kind of work, you could also try your local flight school - Bartolini - they're pretty international, in need of instructors I hear, and definitely could help a bit with the conversion if you agreed to work there (I'm not affiliated with them btw.). If family is more important than money, there's nothing better than working in your town and being home every evening.