Some jobs (particularly telecommuting jobs) have requirements on the applicant's location. For example, can work remotely, but must be in USA or Europe. I propose adding a property applicantLocationRequirements to describe this situation.

For example:

{
  "@context": "http://schema.org/",
  "@type": "JobPosting",
  "name": "Telecommute from anywhere in USA!",
  "applicantLocationRequirements": {
    "@type": "Country",
    "sameAs": "https://www.wikidata.org/wiki/Q30",
    "name": "USA"
  }
}

Note: This is separate from citizenship or work visa requirements, which I think are complicated enough that we should handle those separately.