Lead Windows System Administrator (TS/SCI with Poly)

Closure Technologies; Chantilly (VA); On-site; USD 90,000 - 120,000; Full time

Job summary

Closure Technologies is seeking a Windows System Administrator in Chantilly, VA. This role focuses on supporting the Windows infrastructure while ensuring operational security and integration of systems.

The ideal candidate will have over 7 years of experience with Windows systems, active directory, and scripting in PowerShell or similar languages. Familiarity with LAN, SAN, and Cisco network configurations is preferred. Strong collaboration is essential as you will troubleshoot issues alongside cross-functional teams.

Qualifications

• 7+ years of relevant experience with Windows systems.
• Hands‑on experience with Active Directory, LDAP, and Centrify.
• Experience scripting in PowerShell, VB, or similar tools.

Responsibilities

• Sustain and improve the Windows infrastructure for operations and security.
• Research and resolve operating system issues per organizational standards.
• Test and integrate new hardware and software components.

Skills

Windows systems

Active Directory

Security patch management

Scripting in PowerShell

Windows Server 2008/2012/2016

Microsoft Exchange

Networking (TCP/IP, LAN, SAN)

Tools

Microsoft System Center Operations Manager (SCOM)

VMware

Job description

Closure Technologies is seeking a Windows System Administrator in Chantilly, VA. This role focuses on supporting the Windows infrastructure while ensuring operational security and integration of systems.

The ideal candidate will have over 7 years of experience with Windows systems, active directory, and scripting in PowerShell or similar languages. Familiarity with LAN, SAN, and Cisco network configurations is preferred. Strong collaboration is essential as you will troubleshoot issues alongside cross-functional teams.