Job Title: Senior Systems Administrator (Australia) - TS/SCI with Polygraph
Company Name:
General Dynamics IT
Location:
Chantilly, VA
Position Type:
Full Time
Post Date:
01/17/2026
Expire Date:
02/20/2026
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
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
GDIT Is Your Place:
401K with company match
Comprehensive health and wellness packages
Internal Mobility team dedicated to helping you own your career
Professional growth opportunities including paid education and certifications