It's ok as per 9 years experience and its a good salary about 28000qr.
Ppl are living in only 8000qr overall with 3 children.
Say thanks to God and start ASAP without any hesitation.
You know oil and gas sector already set off many employees about 4500 and other Govt related company as well due to oil prices down globally, now a days infrastructure is better in shape vs oil and gas.

Due to no of schools increased this yr also fees schedule shall be soon revised as many ppl are leaving due to crisis and due to no of many seats available now in Qatar for children as around 30 plus schools came in this yr including Qatari based plus private.

Also accomodation rents suddenly down not like last month due to crisis.
Just see and evaluate Qatar Living living accomodation cost which I made it comparison already 10 to 15 percent down and many flats are still vacant since lj g tune in market.

So it's ideal condition for you to come in and start if you are not in oil sector.

May this will help you much :)