Senior Windows Systems Administrator – Army DoD IT Security

COLSA Corporation

Huntsville (AL)

On-site

USD 90,000 - 130,000

Full time

14 days+

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Job summary

COLSA Corporation is seeking a Windows Systems Administrator to support the U.S. Army Materiel Command in Huntsville, Alabama.

This role provides hands-on systems administration for Windows-based server environments supporting mission-critical Army operations, with travel to operational sites as needed. The candidate will manage AD/Group Policy, patching, STIG compliance, vulnerability remediation, and virtualization (VMware/Hyper-V) while coordinating with site personnel and Test Lab teams for

Qualifications

Bachelor’s degree in information technology, cyber, or a related technical discipline.
Minimum of eight years of experience in Windows systems administration or infrastructure support.
Active Secret security clearance; U.S. Citizenship required.
Security+ certification (or equivalent/higher) and CE certification.
On-site work in Huntsville, AL with CONUS travel 10–15%.
Experience administering Windows Server environments and AD/GP management with patching and STIG compliance.

Responsibilities

Administer, monitor, and maintain enterprise Windows Server environments across domain-joined, workgroup, and air-gapped networks.
Install, test, and validate Windows Server patches, updates, and configuration changes.
Apply security updates and configurations to SQL Server environments.
Implement and maintain DISA STIG compliance across systems.
Review vulnerability scans, perform remediation, and support vulnerability management.
Utilize ACAS/SCAP/STIG Viewer and related tools for compliance checks.
Monitor backups, perform validation, recovery activities, and coordinate with sites for patches.
Support Windows-based application workstations and infrastructure; coordinate with Test Lab personnel for production deployments.
Maintain system documentation, configuration records, vulnerability status, and compliance documentation.
Troubleshoot OS, server, virtualization, and connectivity issues; support VMware and Hyper-V environments.