Windows Cybersecurity Systems Administrator with Security Clearance

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 * E xperience 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.