Windows Cybersecurity Systems Administrator

Tracking Code 9717-987 | Posted 8/7/2026 | Full-time, on-site position in Huntsville, Alabama. Active Secret clearance and U.S. citizenship required.

About the role

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.

Responsibilities

• 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

Requirements

• 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

Preferred Qualifications

• 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
• Experience supporting Microsoft SQL Server environments, including patching, configuration, and troubleshooting

Benefits

• Medical, Dental, and Vision insurance
• Life Insurance, Short-Term Disability, Long-Term Disability, and Accidental Death & Dismemberment
• Supplemental Income Protection Programs
• 401(k) with company match
• Flexible Spending Accounts
• Employee Assistance Program
• Education & Certification Reimbursement
• Employee Discount Program
• Paid Time Off and Holidays