Agree with UkEngQatar. Don't forget that you have end of service gratuity and annual salary increase if it's the company that UkEngQatar think it is.

You should go for it.....Also, you don't have to pay much/nothing to the IRS for overseas exemption. However, keep in mind that you won't get that exemption if not staying out of the country for 11 months out of a year.

Good Luck!