You definitely need to convert your license into a FAA license. As well as getting yourself a work permit or green card in the US. That my friend is not an easy task.. Best chance is to marry an american, but that's not a sure thing either.
If the US is really low on pilots I guess an airline can sponsor some pilots from overseas with the green cards, but that is not likely to occur with todays over crowded pilot situation.
I was hoping to be flying in US as well... But I guess I should have been in an american flight school at first for that to happen.