The two positions advertised are a site supervisor and assistant site supervisor at the U.S. embassy in BrasÃlia.
The company, which is a member of the Private Security Company Association of Iraq and last year won a contract to provide security at the Hoover Dam, describes itself as a "Service-Disabled Veteran-Owned Small Business firm providing full-spectrum security and investigative services."
Whitestone reportedly works for the Department of Defense, the Department of Energy, the U.S. Coast Guard, and the Federal Aviation Administration.
A gallery of images on its Web site features guards in a wide range of maneuvers, as well as four pictures of company chief John Clark with George W. Bush.
The Whitestone Group did not immediately respond to a call seeking comment about its recruiting practices.
(Special thanks to TPM Reader JH)