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# Sentinel - Systems / Principal Systems Engineer - MS&A - 20105

- **Company:** Northrop Grumman
- **Location:** Bellevue, NE, United States
- **Salary:** $79,300.0 - $147,600.0
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, Systems Engineering, Confluence, JIRA, C Sharp (Programming Language), C++ (Programming Language), Computer Programming, R (Programming Language), Systems Analysis, Python (Programming Language), MATLAB, SAP (Applications), SQL Databases, SC Clearance
- **Published:** October 19, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=716055eb655936c0

## About the Role

This requisition may be filled at either the Systems Engineer level (T-02) or Principal Systems Engineer level (T-03)., * Bachelor's degree in a Science, Technology, Engineering or Mathematics (STEM) discipline from an accredited university and 2 years of experience with Bachelor's degree, 0 years of experience with Master's degree

Principal Systems Engineer:

 * Bachelor's degree in a Science, Technology, Engineering or Mathematics (STEM) discipline from an accredited university and 5 Years of related experience; 3 Years with Masters; 1 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
 * Must be able to support program tasks in a secure lab environment (on site) for a minimum of 90% of their total work time
 * Experience with Agile Development Agile methodologies and tools (JIRA/Confluence)
 * Experience working with Systems Engineering and Integration and Test (SEIT) processes
 * Proactive self-starter capable of identifying gaps and problems in/with processes and proposing and implementing solutions
 * Demonstrated experience with physics-based mathematical modeling and simulation
 * Proficiency in scientific computer programming (Python, C++/C#, SQL, MATLAB, R or similar)

Preferred Qualifications:

 * Experience with complex requirement development and traceability
 * Experience guiding technical documents through review processes in a DoD environment

## Description

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

This role may offer a competitive relocation assistance package.

As a Modeling, Simulation, and Analysis Systems Engineer, you will support a diverse team of engineers on a variety of projects supporting Sentinel intercontinental ballistic missile (ICBM) weapon system accuracy.

The candidate will support completion of the following projects:

 * Physics-based predictive modeling and simulation of ICBM accuracy performance
 * Maturation of Sentinel accuracy error models
 * Post flight estimation of Sentinel accuracy performance
 * Estimation of accuracy error model parameters using ground and flight test data
 * Validation & verification (V&V) of Sentinel accuracy error models
 * Preparation of Sentinel accuracy reports
 * Presentations of projects and studies to Northrop Grumman Sentinel leadership and USG customers