Is there an age limit for an expat assignment and a work visa in Qatar

Hello everyone.
My name is Tpie, I am 60 years old male in good health and wanted to know what is the age limit to be hired as a contractor for an expat assignment in Qatar and still be granted a work visa.
Also what are the health conditions that will cause someone to be denied a work visa?
Thanks for your responses.

It depends on the role demand and requirement then above age 60 years wont be an issue.