Manager's, Doctors, Accountant's, Engineers can get their visa upon arrival. In your case, I am not sure but I guess being a Finance Controller falls in the category as Accountant. I just been to Dubai recently and I got the visa upon arrival. I paid Dhs 170 for the visa with 30 days validity. Your Qatar Residence Visa should be valid still for more than 6 months to avoid any problem. Hope this tips would help you. Enjoy your stay!