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# Sentinel - Principal / Sr Principal Systems Engineer - MS&A - 19

- **Company:** Northrop Grumman
- **Location:** Roy, UT, United States
- **Experience:** Expert
- **Salary:** $98,400.0 - $147,600.0
- **Contract:** Permanent contract
- **Skills:** Systems Engineering, Computer Programming, MATLAB, Requirements Management, SAP (Applications), Simulink, Verification and Validation (Software), Gitlab, SC Clearance, Atlassian Tools, Software Version Control
- **Published:** October 2, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9213455/sentinel-principal-sr-principal-systems-engineer-msa-19

## About the Role

This requisition may be filled at either the Principal Systems Engineer level (T-03) or Sr. Principal Systems Engineer level (T-04).

Principal Systems Engineer :

 * Bachelor's degree in a Science, Technology, Engineering or Mathematics (STEM) discipline from an accredited university and 5 years of experience with Bachelor's degree, 3 years of experience with Master's degree, 1 year with a PhD

Sr. Principal Systems Engineer :

 * Bachelor's degree in a Science, Technology, Engineering or Mathematics (STEM) discipline from an accredited university and 8 Years of related experience; 6 Years with Masters; 4 Years with PhD

Required for both levels:

 * Must be a US Citizen with an active U.S. Government Secret Clearance, at time of application, current and within scope, with an investigation date within the last 6 years
 * Must have the ability to obtain and maintain Special Access Program (SAP) approval within a reasonable period of time, as determined by the company to meet its business need
 * 3 years of Modeling, Simulation, and Analysis experience
 * 1 year experience with radio frequency analysis
 * Experience utilizing MS&A tools to inform design solutions, derive or verify requirements
 * Familiarity with requirements management and the verification and validation process
 * Demonstrated experience with mathematical modeling and simulation
 * Experience with MATLAB, Simulink, or related scientific computer programming tools
 * Knowledge of Systems Engineering principles

Preferred Qualifications:

 * Pre-existing SAP access
 * Experience with GitLab or related source control tool
 * Experience with model verification and validation planning and execution
 * Experience with Atlassian Tool Suite
 * Knowledge of DOORS or related requirements management tool
 * Knowledge of Cameo

## Description

Northrop Grumman Defense Systems is seeking a Principal / Sr Principal Systems Engineer for the Modeling, Simulation, and Analysis (MS&A) team. This position is located in Roy, Utah and supports the Sentinel program.

As an integral part of the Command Systems SEIT MS&A Execution team on the Sentinel program, you will focus on:

 * Modeling, Simulation & Analysis for specific aspects of the system such as radio frequency communications, launch execution chain, status timing, and cryptography
 * Support analysis for requirement decomposition and traceability
 * Support MBSE strategy and implementation
 * Coordinate with sub-contracted product teams for compliance with contractual SOW and established program model governance
 * Contribute content for presentations and present to internal and external stakeholders
 * Perform analysis to support derivation of lower level requirements
 * Create analysis documents, verification and validation (V&V) plans, and V&V reports