Sentinel - Principal/ Sr. Principal Systems Engineer - 18081
Northrop Grumman · Roy, UT
$98,400–$147,600from the description
Jul 14, 2026
Roy, UT
Jul 21, 2026
What this job asks for AI summary
A systems engineering role focused on Condition Based Maintenance (CBM+) for an ICBM weapon system, specifically the Sentinel Program. Day-to-day work involves developing predictive maintenance architectures and prognostic models (physics-based, machine learning, or hybrid), conducting reliability analyses such as FMECAs and Reliability Block Diagrams, and managing a closed-loop failure reporting system. Suits engineers with a background in prognostic model or software development and reliability engineering.
Senior level · 5+ years · Ogden-Clearfield, UT · Bachelor's required · Secret clearance · Full-time
Advertised as Principal, but the requirements read as Senior.
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.
Why we read it this way (8)
This role is posted at two levels: Principal Systems Engineer (Level 3, requiring 5+ years with a bachelor's) and Sr. Principal Systems Engineer (Level 4, requiring 8+ years with a bachelor's). The salary ranges differ: $98,400–$147,600 for the primary level and $122,800–$144,200 for the secondary level. The extracted minimum experience (5 years) and compensation reflect the lower (Principal) level.
The core technical requirement — 2 years of Prognostic Model Development or Software Development — is listed as a hard gate for the Principal level (4 years for Sr. Principal). 'Software Development' is captured as an alternative since the JD treats them as interchangeable.
The role is classified under 15-1299 (Computer Occupations, All Other) because it is a specialized Systems Engineering / Reliability & Maintainability (RAM) engineering role centered on CBM+, FRACAS, FMECA, and prognostic/diagnostic model development — it does not map cleanly to a standard software developer or data scientist SOC, though 15-2051 (Data Scientists) is a reasonable runner-up given the ML/prognostic modeling emphasis.
Jira (specifically the RAM Agile Jira Board) appears in the responsibilities narrative rather than a formal requirements section, so it is treated as preferred context.
An active DoD Secret clearance is a hard gate at time of application. The Sr. Principal level additionally requires the ability to obtain a Top Secret clearance, but since the posting gates on Secret at start, Secret is the clearance requirement value.
The advertised title includes both 'Principal' and 'Sr. Principal'; 'Principal' is used for the level advertised in the title as it is the lower/primary level framing of the posting.
Ignored 1 non-technology phrase(s) as skills (responsibilities/concepts, not named tools): Prognostic Model Development.
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.
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