To apply, you must have a valid ICAO ATPL (or USA equivalent). We will accept applications from pilots from multiengine, multicrew, turboprop and jet aircraft, including business jets, with a MTOW of 10 tonnes or more.
This is from the official website. I was actually also at a point in my life that I'm considering two companies at the moment, but Emirates having a restriction regarding frozen ATPL was actually a requirement that made me look more in to the other one for the time being.
I even e-mailed with Emirates to join one of their roadshows but I couldn't because of this frozen ATPL restriction.
While that other company from Abu Dhabi clearly states on their website they do not accept frozen ATPL unless UAE citizen, Emirates only states "must have a valid ICAO ATPL".