If you're OK with that, just visit the US and make some friends. Go to meetups and conferences. You will definitely find something much better than any EU offer (while still wildly underpaid in California) - that's your starting point. Do a good job, underpromise and overdeliver, and ask for referrals.
The supply of good, experienced software developers willing to work for $100k in the Bay Area is practically non-existent when "normal", nothing-special suburban houses there can go for a couple million. There are a much higher supply of developers willing to work for that in Poland because the CoL is so much lower.
Similarly, a gigantic reason American companies hire overseas in the first place is because wages are lower outside the US. Without that wage differential most of those jobs wouldn't exist.