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Senior Systems Administrator; Australia - TS​/SCI Polygraph

Job in Chantilly, Fairfax County, Virginia, 22021, USA
Listing for: General Dynamics - IT
Full Time position
Listed on 2026-06-02
Job specializations:
  • IT/Tech
    IT Support, Systems Administrator
Salary/Wage Range or Industry Benchmark: 60000 - 80000 USD Yearly USD 60000.00 80000.00 YEAR
Job Description & How to Apply Below
Position: Senior Systems Administrator (Australia) - TS/SCI with Polygraph

Job Overview

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.

Responsibilities
  • Provide Tier 2 support for multiple large Enterprise environments spanning CONUS and OCONUS boundaries.
  • Administer Windows and Linux workstations on EVDI and physical systems.
  • Troubleshoot application functionality, crashes, and performance issues.
  • Investigate user performance and collaborate 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.
  • Identify, analyze, and resolve system incidents with short-term workarounds and long-term solutions.
  • Respond to escalated service desk/team requests.
  • Communicate effectively (oral and written) with a variety of stakeholders; work well within small and large team environments.
  • Participate in special projects as required.
  • Provide initial triage, response, and notifications for incidents.
Qualifications
  • 4–7 years of related experience and knowledge/understanding of Active Directory Administration, DNS, DHCP, DFS, LDAP, Windows 10, Server 2012, and Server 2016.
  • Application troubleshooting experience (Outlook, Excel, Word, Java, Internet Explorer).
  • Linux operating system knowledge.
  • Understanding of Service Now, NETS, or other ticketing processes.
  • ITIL v3 or higher.
  • Additional skills that are a plus:
    Microsoft System Center Configuration Manager, Power Shell, virtualization environments (VMware, Citrix), VMware UEM, Microsoft Exchange, telephone/video support, networking.
  • Familiarity with site-specific customer and mission requirements.
  • Active TS/SCI with Polygraph required.
  • Certification: IAT II (required day
    1).
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Position Requirements
10+ Years work experience
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