There are many ways on how to find a job here in Doha
1. Walk in application- You can knock on each company's door and submit your CV/resume.
2. Online application - you can start to Google which companies are open for hiring in Qatar.
3. Look on the classified ads - you can go to a coffee shop, or neighbors or you can buy your own newspaper and start reading their classified ads
4. Job Fairs - i am not sure if they are organizing this here in Doha.
5. Use your connections - ask your friends, relatives, so they can ask their friends, relatives as well for any opening here.
6. Lastly, Don't just sit there........do something!! APPLY! Sheeshz... :)