I have an ex gf working for AirServ in Africa. She's been there for about a year and was told that they lost funding and she was going to be let go, but the money came through at the last moment, so she get's to stay. The point being that things can change in a hurry.
The pay is lousy. She get's $1000/mo stipend, and they provide the room. Food is about double what it is here in the states. There is no retirement or pension that I know of. So if you spent 20 years there your 401K would be $0.00. Not good.
It's also not the safest job in the sky. There is a constant political unrest in most of the areas that they operate in. Especially during election time. Locals going down the street shooting off AK-47's and throwing rocks and bricks through windows.
She's also had the local police/military point guns in her face demanding her passport, and won't give thm back till you pay em enough. Not my idea of a good time.
The flying is surely not boring. There are still lots of people wanting to fill vacant positions there. The best way to get hired, as with any flying job, is to know someone.
If it still something you're still interested in, I wish you good luck. You won't be short of "And there I was..." stories for sure.
I hope all of my info is accurate.
JR