Shift: Active TS/SCI Full Scope Polygraph, Linux System Administration, UNIX System Administration, Kubernetes, Ceph Clustered Storage, Puppet or Ansible, Tier 3 Support, IT Infrastructure Management, Container Technology, Capacity Planning. This is a principal-level role managing IT system infrastructure and related processes, including day-to-day operations, monitoring, and problem resolution for client, server, storage, network, and mobile devices.