Go to Canada, you will be in a much better position in a country that really encourages immigration for skilled professionals.
A company who wants to hire foreign citizens now need to first put out an ad for 1 month for the position in a Canadian job board seeking Canadian citizens. Once they are done with it, they have to apply for a Labor Market Opinion which takes 10-12 weeks. After receiving a positive LMO, they can apply for the work permit which takes 1-2 months more.
Canadians pay around 40% of taxes(not a liberal country, right?).
I'm still in a way better position here in Brazil(in income). I think what is going to change is the lifestyle... but I'm not looking for some lifestyle, I'm young and want to work hard and conquer a lot.
Those are things the US don't give to you, so it is an illusion thinking that in the US you make more money. Taxes there are quite high depending on the state you are going to live. A friend of mine moved from Rio to Massachusetts and told me there are a lot of taxes and he pays around 25% in taxes plus health care, private pension plan an so on. In the end 50% of his salary is for these things.
I moved to the UK this year and I make about the same as I did in Rio. I can say that I have a much better life now than before. Money here means a lot more than in Brazil.
If you want, we can take this conversation privately.