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Mission-Critical Systems Administrator — Helpdesk

Job in Hazelwood, St. Louis city, Missouri, 63042, USA
Listing for: Energy Jobline ZR
Full Time position
Listed on 2026-09-04
Job specializations:
  • IT/Tech
    Systems Administrator, HelpDesk/Support
Salary/Wage Range or Industry Benchmark: 73000 - 133000 USD Yearly USD 73000.00 133000.00 YEAR
Job Description & How to Apply Below
Location: Hazelwood

Leidos is seeking a Mid-Level Systems Administrator / Helpdesk Engineer to support the Chinook Program for an Intelligence Community customer. This role includes Tier 1/2 helpdesk, Windows and Linux administration, AD management, and incident response, with on-call duties and shifts starting at 6 AM or ending at 10 PM EST.

The position requires US citizenship, TS/SCI clearance, and DoD 8570 IAT certification, plus experience with cloud and virtualization, automation, and security compliance.

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