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Mission-Critical System Administrator II; TS​/SCI

Job in Frederick, Frederick County, Maryland, 21701, USA
Listing for: J&T Business Consulting
Full Time position
Listed on 2026-07-17
Job specializations:
  • IT/Tech
    Systems Administrator
Salary/Wage Range or Industry Benchmark: 70000 - 120000 USD Yearly USD 70000.00 120000.00 YEAR
Job Description & How to Apply Below
Position: Mission-Critical System Administrator II (TS/SCI) | 2–10 PM

J&T Business Consulting in Annapolis Junction, MD is seeking a System Administrator Level 2 (TS/SCI with polygraph) for a full‑time, on‑site role. You will support the installation, maintenance, monitoring, and troubleshooting of telecommunications and network infrastructure in a 24/7 operational environment to ensure continuous system availability and incident response.

The ideal candidate has strong problem‑solving skills, a DoD‑level certification (IAT II) and an active clearance, and can

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