Windows System Administrator (TS/SCI)

About the role

Koniag IT Solutions, a Koniag Government Services company, is seeking an experienced Windows Systems Administrator with an active TS/SCI Clearance to support and maintain secure, mission-critical IT environments for our government client. This position is for a Future New Business Opportunity. We offer competitive compensation and an extraordinary benefits package including health, dental, and vision insurance, 401K with company matching, flexible spending accounts, paid holidays, three weeks paid time off, and more.

Responsibilities

• Provide Windows systems administration across multiple heterogeneous Microsoft Windows and Red Hat Enterprise Linux environments.
• Install, configure, and manage Windows operating systems, applications, and enterprise software, including Microsoft Exchange, Office, SharePoint, and SCCM.
• Implement, manage, and maintain Group Policy Objects (GPOs) and other configuration management tools.
• Apply and enforce security policies, procedures, and system hardening requirements to protect Windows systems and data.
• Monitor system performance, identify areas for optimization, and implement improvements.
• Troubleshoot and resolve technical issues related to Windows systems, applications, and supporting infrastructure.
• Conduct root cause analysis to identify and remediate underlying system problems.
• Develop, maintain, and document technical configurations, processes, and standard operating procedures.

Requirements

• Bachelor’s degree in computer science, Engineering, Information Technology, or a related field; or equivalent professional experience.
• 5+ years of professional experience performing Windows system administration duties.
• Experience managing and troubleshooting Windows 11, Windows Server environments, and Active Directory.
• Experience working in secure or classified environments requires strict compliance and documentation.

Education and Experience

• Strong knowledge of Microsoft Windows desktop and server environments.
• Hands-on experience with Active Directory, Group Policy, and enterprise Windows administration.
• Active and transferable Top Secret/SCI clearance with polygraph.
• Department of Defense Directive 8140 / 8570 certification (e.g., CompTIA Security+ CE or equivalent).
• Experience with system hardening and STIG implementation.
• Strong attention to detail and ability to follow structured processes.
• Effective verbal and written communication skills.

Skills and Competencies

• Experience with VMware vCenter, vSphere, ESXi, or other virtualization platforms.
• Experience with SAN/NAS storage systems.
• Understanding basic networking concepts, including subnets, routing, and VLANs; Cisco experience or certification is a plus.
• Experience with Linux system administration (Red Hat Enterprise Linux preferred).
• Experience creating and deploying Windows system images in an enterprise environment.
• Familiarity with U.S. Government Certification & Accreditation (C&A) processes.

Benefits

We offer a competitive compensation and an extraordinary benefits package including health, dental, and vision insurance, 401K with company matching, flexible spending accounts, paid holidays, three weeks paid time off, and more.