either which, you can do so.

have your HR/PRO process it.

then if you get the schedule already, they will instruct you to go to traffic department at Madinat Khalifa, bring with you:

1.) original Dubai/KSA license (make sure it is still valid)
2.) QR 250
3.) Qatar ID

you'll undergo Eye Test, and in less than 30 mins, you'll get your Qatar Driving license.

they will give you back too the Dubai/Ksa License.

hope these help.