Implement and provide guidance on a broad range of security matters, including classified inventory and document control, security investigations, personnel access nominations, classification management, visitor control, facility access, DD254 requirements, Program Classification Guides, Intelligence Community Directives, export-controlled information, and applicable government security policies. June 17, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.