Dani is right; however you have to be carefull because sometimes or I'd really like to say all too often the agency screws with you more than the airline itself. Often people think it's their airline thats bad where the real bs pain is coming from their agency. Many of these agencies totally rip you off and it's not a one time pay. They keep pulling money out of every pay check you get.
If you work for the right company working in Asia can actually be fun as long as you are not stuckup who expects everything to be like home. If you end up at the wrong place you'll probably never wanna leave home after one term.
You are in the right track. Keep looking and reading reviews of each airline you are interested in. Plus most good companies don't require contracts and you will receive a civilized response from them. Exaple: Emirates.
If you work for companies like Emirates, Etihad etc. you might just actually end up miving there for good because I'v never head one bad thing about them