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# Windows Cybersecurity Systems Administrator

- **Company:** COLSA CORPORATION
- **Location:** Huntsville, AL, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Active Directory, Software Documentation, Cyber Security, System Configuration, VMware ESX Servers, Hyper-V, Information Technology Operations, Microsoft SQL Server, Windows Servers, Windows Domain, Security Content Automation Protocol, Server Administration, Server Virtualization, Service Pack, Software Deployment, Virtualization Technology, VMware VSphere, Software Vulnerability Management, Information Technology, Server Operating Systems & Platforms, User Administration, Vulnerability Analysis, Vmware
- **Published:** August 8, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9083280/windows-cybersecurity-systems-administrator

## About the Role

* Bachelor's degree in information technology, cyber, or related technical discipline
 * Minimum of eight years of related experience in Windows systems administration or infrastructure support
 * Security+ certification (or equivalent/higher)
 * Applicable Computing Environment (CE) certification
 * Active Secret security clearance; U.S. Citizenship required
 * Ability to work on site in Huntsville, AL, with CONUS travel approximately 10 to 15 percent
 * Demonstrated experience administering and maintaining Microsoft Windows Server environments
 * Proficiency with Active Directory, Group Policy, user access management, permissions, and Windows domain services
 * Experience managing physical and virtual server environments
 * Experience applying system patches, security updates, and DISA STIG compliance requirements
 * Experience reviewing and remediating system vulnerabilities using ACAS, SCAP, or similar tools
 * Experience supporting virtualized environments utilizing VMware, Microsoft Hyper-V, or comparable technologies, * Master's degree in a related technical discipline
 * Knowledge of Army enterprise IT operations, cybersecurity requirements, management practices, and operational support procedures
 * Experience supporting Army installation-level IT operations, including Network Enterprise Center (NEC) or Regional Cyber Center (RCC) environments
 * Experience supporting DoD Risk Management Framework (RMF) processes and cybersecurity authorization requirements
 * Advanced experience administering Windows Server environments
 * Experience designing, configuring, or troubleshooting enterprise virtualization environments utilizing VMware vSphere/ESXi or Microsoft Hyper-V
 * E xperience supporting Microsoft SQL Server environments, including patching, configuration, and troubleshooting

## Description

COLSA is seeking a Windows Systems Administrator to support the U.S. Army Materiel Command in Huntsville, Alabama. This position will provide hands-on systems administration and technical support for Windows-based server environments supporting mission-critical Army operations. This role may require approximately 10 to 15 percent CONUS travel to support operational sites and system deployments., * Administer, monitor, and maintain enterprise physical and virtual Microsoft Windows Server environments across domain-joined, workgroup, and isolated (air-gapped) network environments

 * Install, test, and validate Windows Server security patches, updates, and system configuration changes
 * Apply required security updates and configurations to systems supporting Microsoft SQL Server environments
 * Implement and maintain compliance with applicable DISA Security Technical Implementation Guide (STIG) requirements
 * Review vulnerability scan results, perform remediation activities, and support vulnerability management efforts
 * Utilize vulnerability assessment and compliance tools such as ACAS, SCAP, STIG Viewer, and similar tools
 * Monitor system backup operations and support backup validation, restoration, and recovery activities
 * Coordinate with site personnel to ensure required patches, security updates, and configuration changes are implemented
 * Support Windows-based application workstations and related infrastructure as required
 * Coordinate with external Test Lab personnel to validate system configurations prior to production deployment
 * Perform on-site server maintenance, patching, troubleshooting, configuration changes, and security remediation activities
 * Maintain system documentation, configuration records, vulnerability status reports, and compliance documentation
 * Troubleshoot Windows operating system, server, application, virtualization, and connectivity issues
 * Support virtualized environments utilizing VMware, Microsoft Hyper-V, or similar technologies


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