Conmuting to any of those places is feasible since those are pretty close , but not recommended Singapore is your home base, and you would have to let the company know when you leave. Don't know about the 330, but there have been about 20 new DECs on the 777 hired over the last 3 months, apparently a few more that already have done the interview and that's about it, then it is all 330, hope it helps...