Systems Administrator – Host- Systems​/DoD; Focused

Bowler Pons is seeking a Systems Administrator to provide host-based systems administration and engineering support for a DoD customer's mission-critical IT infrastructure. The successful candidate will bring hands‑on expertise administering, securing, and modernizing Windows Server environments, Active Directory, and virtualization platforms within a DoD enterprise setting, along with a proven track record of planning and executing upgrades, migrations, and system modernization efforts with minimal disruption to operations.

This person is a proactive, detail-oriented troubleshooter who can isolate and resolve complex issues across operating systems, infrastructure, and networking, communicates clearly with both technical teams and government stakeholders, and holds an active DoD security clearance along with a current IAT Level II certification.

• Provide host-based systems administration and engineering support for a DoD customer responsible for secure, reliable, and uninterrupted operation of mission-critical IT infrastructure.
• Administer, maintain, secure, and troubleshoot Windows servers, physical hosts, virtual machines, workstations, laptops, and other endpoint systems across multiple networks, sites, and operational environments.
• Manage Microsoft server infrastructure across multiple solution areas, including Windows Server, Active Directory, DNS, DHCP, Group Policy, virtualization, file/print services, and enterprise management platforms.
• Perform host-based security configuration, system hardening, STIG implementation, patch management, vulnerability remediation, and security compliance activities in accordance with DoD security requirements.
• Conduct operating system upgrades, migrations, and technology refreshes while maintaining system availability and minimizing operational impact.
• Administer Active Directory domains, organizational units, Group Policy, user/computer accounts, permissions, member servers, and associated infrastructure services.
• Install, configure, administer, and troubleshoot VMware and/or Hyper-V virtual environments, including virtual machines and physical host infrastructure.
• Utilize Power Shell, command‑line utilities, GUI‑based management tools, and automated processes to diagnose and remediate hardware, software, operating system, configuration, and performance issues.
• Monitor system health, capacity, availability, and security posture; identify potential issues and implement corrective actions before they affect mission operations.
• Troubleshoot complex issues involving Windows operating systems, applications, hardware, Active Directory, networking, virtualization, and systems infrastructure.
• Support enterprise patch management and configuration management, ensuring systems remain current with approved security updates and configuration baselines.
• Support disaster recovery, Continuity of Operations (COOP), backup, restoration, and system recovery planning and execution.
• Support the integration and migration of new technologies into existing enterprise environments, including system transitions, domain migrations, infrastructure upgrades, and modernization initiatives.
• Assist with network‑related administration, including DNS, DHCP, IP addressing, domain services, and connectivity troubleshooting.
• Perform basic to intermediate network administration and troubleshooting in Cisco‑based enterprise environments, including switches, routers, VLANs, IP addressing, routing, and network connectivity.
• Troubleshoot connectivity issues between Windows servers, Active Directory, virtual infrastructure, endpoints, and Cisco network devices using tools such as Power Shell, ping, tracert/trace route, nslookup, ipconfig, and Cisco IOS diagnostic commands.
• Develop and maintain technical documentation, system configurations, procedures, and operational records in accordance with DoD and customer requirements.
• Perform planning and analysis for infrastructure projects, including requirements definition, hardware/software selection, implementation planning, testing, deployment, and sustainment.
• Participate in technical reviews and provide status, risk, and…