My dear Qr8000/pm is quite a less salary for your postion,you have not mentioned whether RasGas is offering you Acco,ticket,Allowances etc..a technician in Public Works Authority gets approx Qr9000/pm with Allowance and free Airticket..try to get work at PWA you will get nothing less than Qr15,000/pm as Mech. Eng..so now you decide..might you are paid less coz you are direct local recruit,or your qualification as Eng. are not too standard..Good Luck..
RasGas is a good Company to work anyway...