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Systems Administrator
Job in
Sierra Vista, Cochise County, Arizona, 85635, USA
Listed on 2026-08-30
Listing for:
Vets Hired
Full Time
position Listed on 2026-08-30
Job specializations:
-
IT/Tech
Systems Administrator, Cybersecurity, Windows Server
Job Description & How to Apply Below
Job Summary
- Administer, maintain, and support physical and virtual Windows, Linux/UNIX, and Active Directory server environments.
- Install, configure, patch, upgrade, and maintain operating systems, applications, and enterprise services.
- Monitor system and network performance and troubleshoot hardware, software, connectivity, and operational issues.
- Provide Tier II/III technical support, including workstation deployment, peripheral support, user account administration, and technical training.
- Manage user accounts, permissions, privileged access, and authentication services.
- Administer network infrastructure including routers, switches, firewalls, encryptors, LAN/WAN connectivity, and copper/fiber cabling systems.
- Maintain network documentation, configurations, port assignments, uptime, traffic, and network health.
- Support cybersecurity operations, including RMF requirements, security controls, vulnerability assessments, continuous monitoring, and ATO compliance.
- Respond to cybersecurity incidents, malware infections, and classified spillage events.
- Perform backup, recovery, contingency, and disaster recovery procedures.
- Coordinate with vendors, government stakeholders, and support organizations to resolve technical issues.
- Support system modernization, technology evaluations, lifecycle replacement, testing, and implementation of new technologies.
- Prepare technical briefings, reports, recommendations, and analysis for leadership and stakeholders.
- Develop and maintain SOPs, configuration records, troubleshooting guides, and technical documentation.
- Identify process improvements, automation opportunities, and operational efficiencies.
- Active DoD Top Secret Clearance required.
- 8+ years of enterprise IT systems administration experience.
- Experience with Windows/Linux servers, virtualization, Active Directory, and network infrastructure.
- IAT Level II certification or higher under DoD 8570/8140.
- Experience with Microsoft Windows Server, Active Directory, Group Policy, and VMware vSphere/ESXi.
- Knowledge of enterprise network management, monitoring, and troubleshooting.
- Ability to install, configure, maintain, and troubleshoot network, server, and communications technologies.
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