[runewell]

We would love to have you in the USA. The other countries you listed are fantastic places to live but if your passion is in programming then the USA is an excellent place to be. There are plenty of immigrant success stories here. Look at recent news, Jan Koum moved here from Ukraine, created a mobile application, and is now worth over $6,000,000,000 thanks to the Facebook acquisition!

[kovrik]

Thank you! But where should I start from?

[BugBrother]

I doubt that life quality is better in USA. But the money is better -- and your local social environment is what decides if you like living somewhere, anyway. (Tell me if you like it. :-) )

A suggested plan, with small steps:

Try the waters with Scandinavia/EU? If you travel by Finland from St Petersburg, you can get an EU VISA, right? Then you can do interviews etc in place. But maybe not for Britain? I think it is easier to move to the EU if a company wants to hire you, than getting a Green Card (disclaimer: I only really know about Sweden and Finland for non-EU migrants). If you don't like it, try USA.

(I would offer you to stay at my place and look for jobs, but I'm not in the North right now.)