Hopefully not, but I won't offer an educated guess on it. Depending on the relationship that you have with your employer then you might want to ask - but you would have to balance it with the "Career Limiting Move" factor. I don't think I would worry about it too much.

I would think that the company has already secured your work permit in order to allow you to immigrate to Qatar - that would make sense to men, anyway. Your wife, though, will be getting a job upon arrival in Qatar, so her permit for a specific job will be processed while she's here.

My guess is that someone on the forum has a better idea about this than me, though. I'm no employment expert :)