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Senior Systems Administrator

Job in Aurora, Arapahoe County, Colorado, 80012, USA
Listing for: Leidos LLC
Full Time position
Listed on 2026-06-24
Job specializations:
  • IT/Tech
    Systems Administrator, IT Support
Salary/Wage Range or Industry Benchmark: 100000 - 125000 USD Yearly USD 100000.00 125000.00 YEAR
Job Description & How to Apply Below

Leidos is seeking an IT Engineer with Microsoft Enterprise Systems Administrator experience to join our team in support of a Federal Intelligence Agency contract located in Alice Springs, AUS.

Responsibilities
  • Provide Tier 2 support maintaining multiple large enterprise environments that span CONUS and OCONUS boundaries.
  • Perform system administrative duties, including management of Windows and Linux workstations on EVD and physical infrastructure.
  • Troubleshoot application functionality, crashes, and performance, and investigate user performance 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 both short‑term workarounds and long‑term solutions.
  • Respond to escalated service desk and team requests.
  • Communicate effectively in oral and written form with a variety of individuals; work well within small and large team environments.
  • Participate in special projects as required.
  • Provide initial triage, response, and notifications for incidents (willingness to do so).
Clearance Requirements
  • Must have an active TS/SCI with Polygraph, current investigation within the last 5 years.
Basic Qualifications
  • Bachelor’s degree and 8+ years of relevant experience, or a master’s degree and 6+ years of experience; additional years in lieu of a degree are acceptable.
  • Active Top Secret/SCI with Polygraph clearance.
  • Active Directory administration (DNS, DHCP, DFS, LDAP).
  • Experience with Windows 10, Server 2012, Server 2016.
  • Application troubleshooting (Outlook, Excel, Word, JAVA, Internet Explorer).
  • Linux operating system knowledge.
  • Understanding of Service Now, NETS, or other ticketing processes.
  • ITIL v3 or higher.
  • Diagnostics and troubleshooting of hardware/software.
  • Microsoft Windows system administration.
Preferred Qualifications
  • Power Shell scripting.
  • Microsoft System Center Configuration Manager.
  • Virtualization environments (VMware, Citrix).
  • Profile management using VMware User Experience Management (UEM) toolset.
  • Microsoft Exchange telephone/video support.
  • Networking familiarity with site‑specific customer and mission requirements.
Equal Opportunity Statement

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, national origin, citizenship, religion, disability, or any other basis prohibited by law.

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Position Requirements
10+ Years work experience
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