Staff Linux System Administrator/ TS/SCI W/Poly- Littleton, CO at Lockheed Martin
Littleton, CO
$104,500–$184,115from the description
Jul 6, 2026
Littleton, CO
Jul 21, 2026
What this job asks for AI summary
A Linux/Unix system administrator role supporting classified program IT environments at a defense contractor's Colorado campus. Day-to-day work covers server installation, configuration, patching, vulnerability remediation, and maintenance of operating procedures for a specific portfolio. The role suits an experienced RHEL administrator who already holds an active TS/SCI clearance with a CI Polygraph.
Mid level · Boulder, CO · TS/SCI clearance · Full-time
“or” means any one of them counts — you don't need all of them.
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 $112,204 (middle half $101,688–$138,735). 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 (8)
The role is located at the Waterton, CO campus (Lockheed Martin Space, Jefferson County). The nearest CBSA is Boulder, CO (17820); Denver-Aurora-Lakewood, CO (19740) is also plausible given the campus's proximity to both metros.
A TS/SCI clearance with a CI Polygraph is an explicit hard gate ('Must have an active TS/SCI clearance with a CI Poly').
Security+ (or better) is listed as a required qualification but with a 60-day grace period to obtain it — candidates who don't yet hold it may still be considered. It is treated as a hard gate per its placement in the Basic Qualifications section.
The vulnerability-remediation tools (Nessus, McAfee, WSUS, SCCM, Ivanti, Shavlik, Blade Logic, Splunk, ACAS, SCAP, HBSS) are listed as illustrative examples of a single required competency; Nessus is used as the primary name with the others as alternatives.
No overall years-of-experience figure is stated in the posting; the role is classified as 'Experienced Professional' by Lockheed Martin's internal career-area label, supporting a Mid-level band.
The alt SOC 15-1212 (Information Security Analysts) reflects the significant security-hardening, vulnerability-remediation, and RMF/STIG emphasis in the role, though day-to-day work is primarily Linux system administration.
Ignored 1 non-technology phrase(s) as skills (responsibilities/concepts, not named tools): OS lifecycle management.
Requires a TS/SCI 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.
Read the full posting
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