Staff Windows 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
An on-site Windows Systems Administrator role supporting classified IT environments at a Colorado campus. Day-to-day work centers on installing, configuring, and maintaining Windows, VMware, and Hyper-V servers, along with Active Directory, vulnerability remediation, hardware upkeep, and patching. The role suits an experienced infrastructure professional holding an active TS/SCI clearance with CI Polygraph and an IAT II certification.
Senior level · Denver-Aurora-Lakewood, 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
Rare in this occupation — lead with these, and say what you built with them.
Most people in this occupation already list these. Still required — just not what gets you shortlisted.
What the occupation pays Median $107,401 (middle half $89,864–$133,850). 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 requires an active TS/SCI clearance with a CI Polygraph — this is a hard gate explicitly stated in both Basic Qualifications and the Security Clearance Statement.
The posting lists Nessus, Trellix, WSUS, MECM, Ivanti, and Splunk together in a single vulnerability/security management bullet under Basic Qualifications; all are treated as required since they appear in the required section, though in practice candidates may not need deep expertise in every tool.
HPE and Dell server hardware are listed as a combined requirement ('HPE / Dell'); they are captured as a single skill with Dell as an alternative since the JD treats them as a paired expectation.
IAT II certification (Security+ cited as the example) is a hard gate; IAT III / IAM III (CISSP cited) is listed under Desired Skills and is preferred.
The salary range quoted ($104,500–$184,115) applies specifically to Colorado (among other named states); the posting notes the range may differ for other locations.
No minimum total years of experience is stated at the role level; 'SME level experience' is qualitative language rather than a specific year count.
The alt SOC (15-1212 Information Security Analysts) is noted because a meaningful portion of the role involves vulnerability remediation, security hardening, log management, and compliance frameworks (RMF, STIG, NISPOM), though the primary day-to-day work is Windows systems administration.
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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