Sentinel - Principal / Sr Principal Systems Engineer - 18975
United States-Utah-Roy$98.4k–$184kPosted Jul 10, 2026
RELOCATION ASSISTANCE: Relocation assistance may be available
CLEARANCE REQUIRED FOR START: Yes
CLEARANCE TYPE: Secret
TRAVEL: Yes, 10% of the Time
## Description
At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work — and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history.
Join Northrop Grumman on our continued mission to push the boundaries of possible across land, sea, air, space, and cyberspace. Enjoy a culture where your voice is valued and start contributing to our team of passionate professionals providing real-life solutions to our world’s biggest challenges. We take pride in creating purposeful work and allowing our employees to grow and achieve their goals every day by Defining Possible. With our competitive pay and comprehensive benefits, we have the right opportunities to fit your life and launch your career today.
Northrop Grumman Defense Systems is seeking a Principal / Sr Principal System Engineer (T03/T04 levels). This position is located in Roy, Utah and supports the Sentinel program.
This role may offer a competitive relocation assistance package.
What You’ll Get To Do:
The selected candidate will join a team modeling high level Reliability, Availability, Maintainability, Cost (RAM-C) processes across multiple campuses. This role will focus Operating and Support (O&S) modeling to support affordable system design over its lifespan. O&S Model uses DoD Cost Assessment and Program Evaluation (CAPE) framework combining a variety of data sources. This role will support Requirement vs Cost (RvC) and Cost as an Independent Variable (CAIV) analysis for design reviews and major program events.
This position may also include other product support related modeling efforts to include Availability, Reliability Centered Maintenance (RCM), and Life Cycle Cost (LCC).
An ideal candidate will have experience with:
* Modeling large systems and experience finding useful data and trends in large data sets
* A candidate with maintenance or logistical background will be able to more easily communicate with stakeholders
* Position will be working to mature a model and must be comfortable with pathfinding or blank page development activities
* Experience with cost estimating models similar to ACEIT or SEER is preferred
Basic Qualifications
This requisition may be filled at either the Principal Engineer (T-03 level) or Sr Principal Engineer (T-04 level).
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 needs
* Proficiency with Cost estimating tools (ACEIT, SEER, ReliaSoft, or similar) - 3 years of experience
* Proficiency with Cost As an Independent Variable (CAIV) or Requirement vs Cost (RvC) modeling - 1 year of experience
* Demonstrated technical expertise in the areas of cost specific modeling or modeling, simulation, and analysis (MS&A) - 3 years of experience
* Experience utilizing base year dollars and understanding of inflation / Net Present Value (NPV) - 1 year
* Knowledge of Agile development...