Linux Systems Administrator

MANTECH seeks a motivated, career and customer-oriented Senior Linux System Administrator to join our team working in Crane, IN. This is a hybrid position requiring 3 days onsite per week.Responsibilities Include But Are Not Limited ToProvide support for the virtualization of Linux based virtual machines.Patch and STIG Linux Operating to ensure compliance with DoD Information Assurance standards.Provide troubleshooting support for Linux/Windows Operating Systems.Perform system updates and server configurations, including upgrades of the Operating System.Implement changes to locally hosted workstations/servers. Support virtual and physical networking configurations.Provide hardware, software, and network troubleshooting.Provide support for the administration of multiple VMWare ESXi environments across the RDT&E enterprise.Provide support the virtualization of Linux based virtual machines.Minimum QualificationsHigh School diploma or equivalent education7+ years of experience in IT2+ years of experience as a Systems Administrator working with LinuxMust possess a CASP+, CISSP, or equivalent DoD 8570.01 / 8140 IAT Level III certification, or successfully obtain it within 30 days of offer acceptance and prior to beginning employment. Start date is contingent upon verificationExperience with virtual and physical networking configurationExperience troubleshooting hardware, software, and networksExperience working with DISA STIG guidance and RMF requirementsPreferred QualificationsRedHat 7, or higher, Enterprise administration, including workstation and serverRedHat 8/Ubuntu22, or higher, Enterprise administration, including workstation and serverFamiliar with High Performance Computing (HPC) and Load Balancing for various applicationsClearance RequirementsMust have the ability to obtain and maintain an active US Government Secret Security ClearanceUncleared candidates will be required to obtain an interim secret security clearance to startPhysical RequirementsThe person in this position must be able to remain in a stationary position 80% of the time.Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations. Must be able to exchange accurate information in these situations.