MANTECH seeks a motivated, career and customer-oriented Network/System Administrator (NSA) - to join our team in El Segundo, CA. The Network/System Administrator (NSA) - will leverage their strong technical background and knowledge to support Special Access Programs (SAPs) and other classified networks supporting SSC Directorates and/or AFSPC Operational Units. This role supports day-to-day operations for Collateral, Sensitive Compartmented Information (SCI), and Special Access Program (SAP) ac