ok the total saalry you'll get is 3000 USD = QR 10921
if the company pays for accomodation, and you're single this would be ok. But if you need to pay for accomodation that would cost you soemthing like QR4000-5000 for a studio or the same or a bit less for a room in a flat in a decent location. In this case I wouldn't advise you to come because you wont be able to save money. And taxis here are a big problem, for sure you'd want to buy a car.

I hope that helped a bit