I don't understand what we are talking about. He can't enter the US to work except on this particular work/travel program, and I don't think that it provides permanent work. For permanent work he would have to get an H1B visa, and with no skills or sponsor, that will be impossible.
n8m, it seems to me that you have very little knowledge of the US, work or otherwise. There is no way that you will be able to earn decent money - it will all be minimum-wage jobs, as capecoddah has said. You may think that $10 per hour is a lot, but it is not.
brutally hot?? Not if he goes to work on the Outer Banks. I live in NC and have been out there many times. It's fantastic, breezes, water -- an infinite improvement over where I live (Chapel Hill). On second thought, If he's from Moscow, he may indeed find it brutally hot.