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Job Title: Senior Systems Administrator (Australia) - TS/SCI with Polygraph
Company Name: General Dynamics IT
Location: Chantilly, VA
Position Type: Full Time
Post Date: 11/06/2025
Expire Date: 06/17/2026
Job Categories: Engineering, Information Technology
Job Description
Senior Systems Administrator (Australia) - TS/SCI with Polygraph

General Dynamics Information Technology (GDIT) is seeking an IT Engineer with Microsoft Enterprise Systems Administrator experience to join our team in support of a Federal Intelligence Agency contract. Primary responsibilities include providing Tier 2 support of maintaining multiple large Enterprise environment that spans CONUS and OCONUS boundaries. The supporting infrastructure includes multiple Microsoft based networks spanning multiple security enclaves within a hybrid (Windows & RHEL) environments.

Job Responsibilities & Duties:
  • System Administrative duties to include management of Windows and Linux workstations on EVDI and physical
  • Troubleshooting application functionality, crash and performance
  • Investigate user performance and work with external teams to improve user experience
  • Assist customers with Tier 2 incident resolution for Linux and windows applications.
  • Provide remote end user desktop support
  • Identifies, analyzes, and resolves system incidents with both short-term workarounds and long-term solutions. Responds to escalated service desk/team requests.
  • Communicate effectively (in oral and written form) with a variety of individuals; work well within small and large team environments.
  • Participates in special projects as required.
  • Willingness to provide initial triage, response, and notifications for incidents

Required/Desired Skills Candidates should have 4-7 years related experience and knowledge/understanding of:

  • Active Directory Administration
  • DNS, DHCP, DFS, LDAP
  • Windows 10, Server 2012, Server 2016,
  • Application Troubleshooting such as Outlook, Excel, Word, JAVA, Internet Explorer
  • Linux Operating system
  • Understanding of Service Now, NETS or other ticketing process
  • ITIL v3 or higher

The following knowledge/skill set is not required but is a plus

  • Microsoft System Center Configuration Manager
  • PowerShell
  • Virtualization Environments (VMware, Citrix)
  • Profile management utilizing the VMware User Experience Management (UEM) toolset
  • Microsoft Exchange
  • Telephone/Video support
  • Networking
  • Familiarity with site specific customer and mission

  • Active TS/SCI with Polygraph required
  • Certification Requirement (*required day 1) IAT II

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Contact Information
Company Name: General Dynamics IT
Website:https://www.gdit.com/careers/job/fafadb4e2/senior-systems-administrator-australia-tssci-with-polygraph/?source=AutoAppend_HBCU
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