All these comments are good, but what is job? that is the main question to establish if this is good or not so good.

If you're posting for "senior lawyer", it's not so good. Lawyers in private practice in North America make minimum $150/hr +, that means $ 22,500/m, double (after taxes) of what you're gonna be making in Doha. Unless you're not native North American and you're moving closer to home...