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# Windows System Administrator

- **Company:** TEKSYSTEMS INC.
- **Location:** Washington, VA, United States
- **Experience:** Experienced
- **Contract:** Temporary contract
- **Skills:** Multitier Architecture, Microsoft Windows, Active Directory, Configuration Management, System Configuration, Desktop Virtualization, Disaster Recovery, Information Technology Operations, System Center Configuration Manager, Windows Servers, Windows PowerShell, Service Pack, Backup and Restore, Windows Desktop, System Availability, Software Troubleshooting, Information Technology, Patch Management, Vmware
- **Published:** November 6, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9293809/windows-system-administrator

## About the Role

Active TS/SCI Security Clearance.
IAT Level II Certification (Security+, CySA+, or equivalent).
4+ years of experience in Systems Administration or IT Infrastructure Support.
Strong experience supporting Windows Server and Windows desktop environments.
Hands-on Active Directory administration experience.
Experience supporting VMware environments.
Experience with SCCM, MECM, or other enterprise patch management solutions.
Experience imaging and deploying workstation builds.
Strong troubleshooting and problem-solving skills.
Ability to work effectively within classified and security-focused environments., PowerShell scripting experience.
Experience implementing and maintaining STIG compliance.
VDI (Virtual Desktop Infrastructure) experience.
Familiarity with ITIL processes and change management practices.
Experience supporting DoD or other federal government environments.
Experience with backup, recovery, and disaster recovery planning.

## Description

We are seeking a Windows Systems Administrator to support mission-critical Department of Defense operations within a secure classified environment. This position is responsible for providing Tier I and Tier II systems administration and IT operations support across enterprise Windows infrastructure, ensuring system availability, security, and operational performance.
This role is ideal for a systems administrator with a strong Windows background, experience supporting classified environments, and hands-on experience with VMware, Active Directory, and enterprise patch management tools.

Responsibilities
Provide Tier I and Tier II systems administration support within a classified environment.
Administer and maintain Windows Server and Windows workstation environments.
Manage Active Directory users, groups, permissions, and Group Policy Objects (GPOs).
Install, configure, test, and deploy operating system updates, security patches, and software upgrades.
Support enterprise patching and imaging efforts utilizing SCCM, MECM, or similar tools.
Monitor system health, performance, and security to ensure operational availability.
Perform backup and recovery operations and support disaster recovery procedures.
Troubleshoot and resolve server, workstation, and enterprise infrastructure issues.
Maintain technical documentation, system configurations, and operational procedures.
Participate in change management and configuration management activities, including CAB reviews.
Support VMware virtualized environments and associated infrastructure.
Assist with operational continuity and contingency response requirements as needed.