who could get a tourist visa upon arrival, then go to Qatar as a tourist.

But before doing that, be specific of what kind of job you're looking for, your salary expectations and the current salary package given to the job you're looking for.

Do you have enough money to support yourself while you're here? Do you have friends that could support you while you're looking for a job?

These are the things you need to consider as Qatar is an expensive place to live especially if you're on a limited budget. There's a lot of people coming to Qatar every day to work or looking for a job.

By the way, what job/position are you searching for anyways?