Senior Systems Administrator (Linux)

Amentum is seeking a Senior Systems Administrator (Linux) to oversee and manage enterprise-level Linux infrastructure supporting U.S. Navy operations within a Department of Defense environment. The role requires deep technical expertise in Linux systems, leadership in secure system administration, and a strong working knowledge of Risk Management Framework controls. The ideal candidate will demonstrate the ability to lead teams, manage complex environments, and ensure cybersecurity compliance across classified and unclassified networks.