Demo

Windows Systems Administrator (Sys Admin)

Closure Technologies
Chantilly, VA Full Time
POSTED ON 3/17/2026
AVAILABLE BEFORE 9/9/2026
The successful candidate will leverage their development skills and experience to support the successful ingestion, cleansing, transformation, loading, and display of significant amounts of data.

  • You will help sustain and improve the organization's Windows infrastructure as part of a collaborative systems team. Your focus will span operations, security, and integration of hardware and software.
  • Research and resolve operating system problems efficiently and accurately in adherence to organizational standards
  • Troubleshoot operating system issues and collaborate with cross-functional teams including application development and networking
  • Build and harden Windows servers, establish and manage configuration baselines
  • Plan, test, install, integrate, and maintain new or updated operating systems
  • Apply security and firmware patches promptly; assist in maintaining patch management strategies
  • Test and integrate new hardware and software components
  • Manage the lifecycle of operating systems
  • Design interfaces to external systems and maintain thorough documentation on system configurations and processes

Required Skills

  • 7 years of relevant experience with Windows systems
  • Experience with complex system architectures and interconnected data environments
  • Hands-on experience with Active Directory, LDAP, and Centrify for domain management
  • Experience and proficiency applying security patches within enterprise systems
  • Experience scripting in PowerShell, VB, or similar tools
  • Experience and ability to manage environments running Windows Server 2008/2012/2016
  • Experience with Microsoft System Center Operations Manager (SCOM) and Access Control Service (ACS)
  • Experience with Microsoft Exchange, Outlook, and antivirus solutions including Symantec and McAfee
  • TS/SCI clearance with a polygraph

Desired Skills

  • Familiarity with LAN, SAN, TCP/IP, and Cisco network configurations
  • MCSE or MCITP certifications
  • Experience with VMware 5 and a VMWare Certified Professional (VCP) credential

Salary.com Estimation for Windows Systems Administrator (Sys Admin) in Chantilly, VA
$138,404 to $172,759
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