TS/SCI Windows Sys Admin for Secure Enterprise

CO1002 CDW Government, LLC; Washington (District of Columbia, VA); On-site; USD 145,000 - 175,000; Full time

Job summary

CDW Government, LLC is seeking a System Administrator to support Windows-based systems in a secure federal environment. The role requires an active TS/SCI clearance and citizenship, with 4+ years of enterprise IT experience and strong Active Directory/Group Policy skills.

You will administer Windows Server and desktop environments, manage AD permissions, apply patches, and maintain documentation. Collaboration with cybersecurity, network, and engineering teams is essential, with opportunities to

Qualifications

• Active TS/SCI clearance required at hire.
• U.S. citizenship required due to federal contract and clearance requirements.
• 4+ years of relevant systems administration/enterprise IT experience.
• Hands-on Windows Server and desktop experience.
• Working knowledge of Active Directory, Group Policy, DNS, DHCP.
• Patch, troubleshooting, and routine maintenance experience.
• Follow secure change management, documentation, and procedures.
• Strong customer service, troubleshooting, and communication skills.
• Experience with virtualization (VMware/Hyper-V) is a plus.
• DoD 8570/8140 IAT Level II certification a plus.

Responsibilities

• Administer Windows Server and desktop systems across secure environments.
• Manage AD accounts, groups, OUs, and access control.
• Apply patches and configuration changes per procedures.
• Assist with Group Policy, workstation config, and baselines.
• Monitor health, review logs, and escalate issues.
• Troubleshoot hardware, software, OS, authentication, and connectivity.
• Support vulnerability remediation and document status.
• Maintain system documentation and inventory records.
• Coordinate with help desk, cybersecurity, network, and engineering teams.

Skills

TS/SCI clearance

Windows admin

Active Directory

Group Policy

PowerShell

Patch management

Documentation

Team collaboration

Tools

VMware

Hyper-V

SCCM

WSUS

DNS/DHCP

DISA STIGs

Job description

CDW Government, LLC is seeking a System Administrator to support Windows-based systems in a secure federal environment. The role requires an active TS/SCI clearance and citizenship, with 4+ years of enterprise IT experience and strong Active Directory/Group Policy skills.

You will administer Windows Server and desktop environments, manage AD permissions, apply patches, and maintain documentation. Collaboration with cybersecurity, network, and engineering teams is essential, with opportunities to