**Description**

Join Leidos’ Digital Modernization Sector supporting the Transportation Security Administration (TSA) by protecting classified programs, personnel, facilities, and information critical to national transportation security.

This role serves as a key security liaison between government requirements and day-to-day operations, ensuring compliance with federal security regulations and safeguarding sensitive assets. The position is contingent upon TSA contract award and requires an active Top Secret clearance with SCI eligibility.

**PRIMARY RESPONSIBILITIES:**

**Personnel Security**

+ Process and manage security clearances, SCI nominations, reinvestigations, upgrades/downgrades, and continuous vetting.
+ Conduct security briefings, indoctrinations, debriefings, and foreign travel briefings.
+ Maintain compliance with DISS, NISS, NBIS, DHS, and related requirements.

**Physical Security**

+ Manage facility acce...