Systems Administrator IV at JT4, LLC
Lancaster, CA
$97,000–$130,000from the description
Jun 28, 2026
Lancaster, CA
Jul 20, 2026
What this job asks for AI summary
A senior-level systems administrator role supporting U.S. military test range IT infrastructure. Day-to-day work spans deploying and maintaining Linux and Windows workstations and servers, managing LAN/WAN and classified remote access networks, administering user accounts and access controls, and handling compliance documentation and cybersecurity tooling in a DoD environment. Suits an experienced IT generalist comfortable working independently within a government security framework.
Senior level · 9+ years · Las Vegas-Henderson-Paradise, NV · Top Secret clearance · Full-time
We read this from the posting text with AI. Skim the description below before ruling yourself out.
How this req sits in the market our data
Most people in this occupation already list these. Still required — just not what gets you shortlisted.
What the occupation pays Median $103,440 (middle half $84,070–$129,930). This posting is about at that midpoint.
Estimated from BLS employment for this occupation and area, per-skill prevalence across our listing corpus, and published wage benchmarks — as of Jul 28, 2026. It is a model, not a headcount.
Why we read it this way (9)
The job title is 'System Administrator IV' — no seniority level word appears in the title itself, so the title states no level; however, the 9+ years requirement and broad independent scope support a Senior classification.
Location is not explicitly stated in the posting. JT4 primarily supports western test ranges (Edwards AFB, Nellis AFB, China Lake, etc.). The 'SCC: CSAN6, JIT13, A1412TW' codes suggest a Nevada/Nellis-area assignment; Las Vegas-Henderson-Paradise, NV CBSA is a best-guess estimate and should be verified.
The clearance requirement is stated as 'Top Secret with Special Access' (SAP/SAR). This is mapped to TopSecret rather than TopSecretSci because the posting does not explicitly mention SCI/TS-SCI; 'Special Access' typically refers to SAP programs. Hiring managers should confirm the exact clearance type.
A bachelor's degree is listed but the JD explicitly accepts 'equivalent experience through technical training, completion of a recognized certification program, or experience' — degree requirement is therefore None.
CompTIA Security+ (DoD IAM Level II) must be obtained within 6 months of hire; it is treated as a hard gate since inability to obtain it affects continued employment.
The role has a meaningful cybersecurity/IA compliance component (STIGs, ACAS, SCAP, ATO artifacts, Splunk), which makes 15-1212 Information Security Analysts a plausible runner-up SOC, though the primary day-to-day work is clearly systems/network administration.
IAVM (Information Assurance Vulnerability Management) is listed as a subject area but names no distinct tool; it is captured under the DoD STIGs skill as a related compliance framework rather than a separate entry.
Ignored 1 non-technology phrase(s) as skills (responsibilities/concepts, not named tools): patch management.
Requires a Top Secret clearance — the cleared population is a small fraction of this occupation, so the real candidate pool is materially smaller than the estimate below, which does not model clearance.
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