KSS. Job ID 2435001. . Koniag Information Security Systems. a Koniag Government Services company, is seeking a Staff Registered Nurse with an active CAOHC certification to support. KSS. and work PRN at our Occupational Health Clinic at the Bureau of Engraving and Printing in Washington DC. . Essential Functions, Responsibilities & Duties may include, but are not limited to. . Must possess Certified Occupational Hearing Conservatist (CAOHC) certif...