Windows Cybersecurity Systems Administrator

Tracking Code

9717-987

Posted Date

8/7/2026

Job Location

Huntsville, Alabama

Location of Position

Huntsville, Alabama

Work Arrangement

On Site: 100%

Position Type

Full-Time/Regular

Clearance Required?

Yes

Level of Clearance Required

Secret

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.

Principal Duties And 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

At COLSA, people are our most valuable resource and centered at our core value. We invite you to unite your talents with opportunity and be a part of our “Family of Professionals!” Learn about our employee-centric culture and benefits here: https://www.colsa.com/culture\_benefits

Required Experience

• 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

Applicant selected will be subject to a government security investigation and must meet eligibility requirements for access to classified information. COLSA Corporation is an Equal Opportunity Employer, Minorities/Females/Veterans/Disabled. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, or national origin.

Salary Type

Annually

The salary range, if referenced, represents a good faith estimate. COLSA considers various factors when determining base salary offers, but not limited to, location, the role, function and associated responsibilities, a candidate’s particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements.

COLSA offers a comprehensive and customizeable benefits program which includes Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 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.

This position will be posted for a minimum of 3 business days. If a candidate has not been selected at that time, it will continue to be posted until a suitable candidate is selected or the position is closed.