Please search before posting. This question has been asked many times before and there seems to be a lot of vets in Qatar looking for jobs.

First of all you need to contact the vet clinics and see if anyone has any vacancies at the moment. Then you need to contact the Animal Resource Department and ask about what exams you need to take, what licenses you would need and how to start the process.

I think you need to have been offered a job and have a sponsor here before you are allowed to sit the exam for a vet license.