They all will. They have a major problem, there is no legacy flight training in those countries, and let's face it, who applies to Qatar, Emirates et al ? Pilots who didn't make it with their national airlines, old captains that got hit by the 60 year retirement limit...
Don't get me wrong, there are some great pilots flying for those companies, but there are some pretty bad ones too.
Management is pretty harsh, the contracts are not all that great once you take away the usually very expensive COL.
The A330 contract for FO with Qatar sucks. Big time. And upgrade time to CA is 4/6 years. That's a long time on those schedules.
Moving to the Middle East must be studied very, VERY carefully. It's a different game out there, socially, culturally,... It is particularly hard on the families, not even mentionning the weather factor.
But they'll train you well, you'll get tons of widebody intercontinental glass time... Oh an they bond you 3/5 years.
It's a good place to standby waiting for better days at home, but living there permanently ? One must be insane.
that's my personal goal. I would like to end up in that region sometime down the line near the future, but for now gotta take it step at a time