* Look for the Who's Hiring threads (every 3 months)
* Two years is not long, so be prepared to accept a junior position. (I don't know what other experience you have.)
* Have you considered other countries like Germany or Estonia (where I live) which have lots of Ukrainian folk and great startups? I can personally recommend Estonia. I know SF is "the" scene, especially if aiming at riches, but there are difficulties immigrating into the US these days.
Stay in Eastern Europe. You are not welcome here.
If you come here anyway, join a YC startup so we can keep their failure rate hilariously high since they only hire dipshit immigrants like you