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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Systems Administrator - **Company:** DEMASE TECHNICAL SERVICES, LLC - **Location:** Oak Ridge, TN, United States - **Experience:** Expert - **Salary:** $80,000.0 - $160,000.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Active Directory, User Authentication, Backup Devices, Bash Shell, Ubuntu (Operating System), Cyber Security, Information Systems, Linux, Disaster Recovery, Domain Name System (DNS), Firmware, Linux Servers, Windows Servers, Windows PowerShell, Prism (Software), Red Hat Enterprise Linux, Scripting, Enterprise Software Applications, System Availability, Multi-Cloud, Information Technology, Nutanix - **Published:** June 10, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=b7b299614a70d6c5 ## About the Role Do you have a valid Nutanix Certified Professional - Multi-Cloud Infrastructure (NCP-MCI) certification?, Do you have experience in System administration?, Do you have a Bachelor's degree?, * Active DOE Q security clearance (or equivalent DoD TS) * Bachelor's degree in computer science, information systems, engineering, or related field (or equivalent experience) * Five-plus (5+) years of systems administration experience in secure or classified environments Preferred skills/qualifications * Hands-on experience administering Nutanix HCI platforms or similar platforms * Strong experience with Windows Server and/or Linux (RHEL, Rocky, Ubuntu) * Understanding of cybersecurity best practices in classified systems * Experience implementing STIGs and resolving vulnerability findings * Ability to work independently in a high-security environment * Experience supporting classified networks (DOE, DoD, or IC) * Familiarity with backup solutions, SAN/NAS concepts, and scripting (PowerShell, Bash) * Experience supporting RMF-authorized systems * Nutanix certifications (NCA, NCP, or higher) or similar ## Description DeMase Technical Services is a Women-Owned Small Business created by experts in the cybersecurity, energy, nuclear, and defense markets. We offer best-in-class solutions for nuclear facility licensing, permitting, startup, operations, cybersecurity, and next generation technologies. DeMase provides expert professionals in the fields of cybersecurity, next generation information technologies, nuclear engineering, nuclear technologies, and environmental management. Our cybersecurity team is an industry leader supporting the Cybersecurity Maturity Model Certification (CMMC) ecosystem. DeMase is an expert authorized CMMC C3PAO and full-service CMMC provider for readiness and certification. https://demase-tech.com/ The Systems Administrator is responsible for the deployment, administration, and maintenance of enterprise systems in a Q-cleared environment, with a strong focus on Nutanix hyperconverged infrastructure. This role supports classified operations by ensuring system availability, security compliance, and performance reliability. This role requires an active DOE Q security clearance (or equivalent DoD TS). Key Responsibilities * Administers and maintains Nutanix HCI environments, including Nutanix AOS, AHV virtualization, and Prism Element/Prism Central; * Deploys, configures, and maintains Windows and Linux servers; * Performa system hardening in accordance with DISA STIGs and site security requirements; * Monitors system health, performance, and capacity; * Applies OS patches, firmware updates, and Nutanix upgrades; * Supports backup, restore, and disaster recovery processes; * Manages Active Directory, Group Policy, DNS, and authentication services; * Troubleshoots system, storage, networking, and virtualization issues; * Supports classified enclave operations and air-gapped systems; * Collaborates with ISSOs to remediate vulnerabilities and support ATO activities; * Maintains configuration documentation and system inventories; and * Participates in change management and maintenance windows., DeMase Technical Services, LLC is committed to providing reasonable accommodation to applicants with disabilities where appropriate. 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