Certificate for visa..?

Hi
Im a graduate in Engineering from India. I have recently got a job as sales engineer in a company in qatar. however my problem is that I hav just recently graduated and it will take atleast 2 months for my Enginnering Degree from the University to be in my hand. Presently I have a course completed certificate from my College mentioning that I have completed my Engineering Studies.
Will this be a problem in getting a visa here..? Will I be able to get an Engineer or Sales Engineer visa with the present certificate that I hold?
There is no problem with the company that hired me. what i need to know is will i need my degree certificate for getting visa or will my course completion certificate issued by my college be enough for that?
it depends upon the agency who hired you.if you meet their requirements as sales engineer, you must at least present your credentials
if its attested from university and educational board,and foreign office and also from Qatar embassy.