Its probably a fake listing so they can get a Visa-nigger from the 3rd world. They do this all of the time. "We could not find someone to meet the job requirements, please give us a visa allowance to hire a pejeet". I have seen it too many times and worked with too many of those pejeets (that are also given fake degrees) to ever want to work with any of those people ever again.
It's probably this as well...might as well advertise it like this:
Help Wanted Masters Degree Required Must be willing to accept government gibs and be their dependent $15 an hour