**Description**

Leidos' Corporate Information Security Office, reporting through the Digital Sector, is seeking an **Alternate Information Systems Security Manager (Alt. ISSM)** in our San Diego, CA Campus Point office.

In this role, you will oversee several **DCSA-approved Collateral Information Systems** and maintain accreditation throughout the system lifecycle. You will serve as the Information Assurance (IA) Subject Matter Expert (SME), providing technical leadership and security oversight for collateral enclaves across the enterprise, with demonstrated expertise in SIPRNet environments and requirements. To be successful in this role, you will have a proven track record supporting and leading successful **CORA / CCRI inspections** , ensuring compliance with DoD, DCSA, and applicable cybersecurity policies and directives. Additionally, you will oversee day-to-day information system security operations; manage collateral IA and IT personnel; resolve complex cy...