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Updated twice daily · Oct 12, 2026
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SIPRNET System Administrator

This position provides hands-on and remote administration for SIPRNET systems, including Windows servers and workstations, Active Directory, Group Policy, PKI, virtualization, monitoring, and enterprise security tools. The administrator will manage deployments, patching, backups, access controls, configuration changes, system recovery, and remediation of security findings. They will also support CORA assessments, DISA inspections, audits, documentation, and adherence to DoD, DISA, NIST, and related security standards. The role involves coordinating with cybersecurity, network, engineering, and security teams while assisting users and administrators at geographically dispersed sites. It suits an experienced classified-systems professional who can work independently, resolve complex technical issues, communicate clearly, and travel as needed. U.S. citizenship and an active DoD Secret clearance are required.

Requirements

Bachelor’s degree plus 5 years of relevant experience, or master’s degree plus 3 yearsActive DoD Secret clearance and U.S. citizenshipHands-on SIPRNET or classified DoD systems administration experienceWindows Server, Active Directory, Group Policy, PKI, and PowerShell expertiseExperience with CORA, DISA STIGs, vulnerability remediation, and patch managementKnowledge of virtualization, backups, recovery, documentation, and security compliance
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Listed October 12, 2026 · Verify details with the employer before applying.

About General Dynamics Mission Systems (GDMS)

General Dynamics Mission Systems says it builds radios in Scottsdale, where it reported 2,475 workers in July 2025 and has Air Force radio work through 2027.

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