Sentinel - Sr. Principal Systems Engineer - 18734 at Northrop Grumman
Roy, UT
$122,800–$184,200from the description
Jul 10, 2026
Roy, UT
Jul 21, 2026
What this job asks for AI summary
A senior systems engineering role supporting the Sentinel Program, focused on requirements development, management, and traceability across system and subsystem levels. Day-to-day work involves authoring and maintaining interface documents, conducting trade studies, tracking technical performance metrics, and engaging with internal teams and external customers during program reviews. Suits experienced engineers with a background in interface requirements and tools such as DOORS or CAMEO, holding an active DoD Secret clearance.
Senior level · 8+ years · Ogden-Clearfield, UT · Bachelor's required · Secret clearance · Full-time
Advertised as Principal, but the requirements read as Senior.
“or” means any one of them counts — you don't need all of them.
Posted 2 times — it's one opening, so apply once.
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.
What the occupation pays Median $106,338 (middle half $83,384–$129,476). 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 title 'Sr. Principal System Engineer' is advertised at the Principal level, but the actual requirements (8 years with a BS, systems engineering scope on a single program) are consistent with a Senior individual contributor — not an org-wide Principal authority.
The JD requires an active DoD Secret clearance AND the ability to obtain an SAP clearance; the hard gate is Secret (set above). The SAP clearance is listed as a requirement to obtain, not to hold at start — an active Sentinel SAP clearance is listed only under Preferred Qualifications.
DOORS and CAMEO are listed together as examples of systems engineering tools ('such as DOORS, CAMEO'); they are treated here as interchangeable alternatives satisfying one requirement rather than two separate mandatory tools.
Interface Requirements Specifications (IRS) and Interface Control Documents (ICD) appear in both the Basic and Preferred Qualifications sections — the Basic section gates on 'Development of' both, so both are marked required.
Model-Based Systems Engineering (MBSE) and SSCMAN 91-710 Range Safety Compliance appear only under Preferred Qualifications.
The role is located in Roy, UT, which falls within the Ogden-Clearfield, UT CBSA.
Ignored 2 non-technology phrase(s) as skills (responsibilities/concepts, not named tools): configuration management, Model-Based Systems Engineering.
Requires a 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.
Read the full posting
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