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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: 04/04/2026
Expire Date: 05/06/2026
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 Tier2 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

What You'll Need To Succeed:

  • Education: Bachelors Degree in Computer Science, Engineering or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience.

  • Required Experience: 4+ years of related experience

  • Certification: Candidate must possess an appropriate and current DoD Information Assurance (IA) Certification to be considered for employment; either valid CompTIA Security+ CE, Systems Security Certified Practitioner (SSCP) or Cisco Certified Network Associate (CCNA)-Security. CompTIA Security+ CE Certification is the preferred certification. In addition, candidate must attain the required DoD 8570 Computing Environment (CE) Training within six (6) months of Hire Date.

  • Security Clearance Level: TS/SCI with Polygraph is required.

Candidates should have 4+ 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

#GDITcareers #OpportunityOwned#WeAreGDIT #transitioningmilitary#clearedjobs #veterans #Autobots
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Contact Information
Company Name: General Dynamics IT
Website:https://www.gdit.com/careers/job/3114d5262/senior-systems-administrator-australia-tssci-with-polygraph/?source=AutoAppend_HBCU
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