Job DescriptionWe are seeking an experienced
Systems Administrator to lead a team of system administrators in managing and maintaining critical infrastructure. The ideal candidate will possess a deep technical understanding of enterprise systems administration and a proven track record of operating within air-gapped (disconnected) networks. This role requires a disciplined approach to security, a commitment to rigorous compliance standards, and the ability to execute complex system updates and troubleshooting without external internet connectivity.
In this System Administrator position you will make impacts in the following ways:
- Administer patch management for RHEL-based Linux and Windows systems, including vulnerability scanning, patch deployment, and compliance validation
- Perform VMware patching and lifecycle operations
- Perform Server and Exchange operations in an isolated environment
- Manage and maintain TrueNAS storage systems, including volumes, snapshots, and secure protocols
- Operate in VMware vSphere environments, including provisioning, performance monitoring, and resource management
- Install, configure, and maintain WSUS (Windows Server Update Services) for enterprise Windows patching
- Maintain comprehensive documentation and contribute to RMF packages and audit readiness.
- Configure/troubleshoot group policies
- Build workstations to specification based on requirements
- Information systems IAVM/STIG compliance
- Install and configure COTS and GOTS software
Required Skills and Education- 10+ years of experience (7+ years of experience with a degree) as a system administrator
- CompTIA Security+ or equivalent DoD 8570 IAT Level II certification
- Proven ability to configure and manage WSUS for Windows update distribution
- Hands-on knowledge of Microsoft Exchange administration
- Strong Active Directory experience, including domain controller and GPO management
- Experience with VMware infrastructure, including vCenter, VCSA, and ESXi
- Experience with Linux (Red Hat)
- Experience with networking equipment such as Cisco Switching, Aruba VPNs, and Firewalls
- Demonstrate experience with managing enterprise Certificate Authorities (CA) such as Microsoft Active Directory Certificate Service (AD CS)
This position will be posted for at least 5 calendar days. The posting will remain active until the position is filled, or a qualified pool of candidates is identified.
Preferred Skills and Education- Familiarity with DISA STIGs, Nessus vulnerability scanning, and cyber compliance frameworks
- Strong understanding of PKI lifecycle management, including issuance, revocation, renewal and chain-of-trust validation
- Experience with TrueNAS storage technologies
- Scripting skills (e.g., Bash, PowerShell) for automation and task efficiency
- Backup/Redundancy Management
- Familiarity with Fortify administration
- Experience working with SecureView
- Operating System Certification
