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Northrop Grumman

Principal / Sr Principal Modeling Simulation Systems Engineer

Roy, UT, United States

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Job details

Posting language: English
Posted: Nov 6, 2026

Original job description

RELOCATION ASSISTANCE: Relocation assistance may be available

CLEARANCE REQUIRED FOR START: Yes

CLEARANCE TYPE: Secret

TRAVEL: No

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 Modeling Simulation Engineer Systems . This opening is in Roy, UT and will support the Sentinel Program . Northrop Grumman supports the Air Force’s sustainment, development, production and deployment of hardware and system modifications for Intercontinental Ballistic Missile (ICBM) Ground and Airborne Launch Control Systems, Launch Facilities, and associated infrastructure.

The selected candidate will join a team modeling high level Reliability, Availability, Maintainability, Cost (RAM-C) processes across multiple campuses. This role will focus Reliability Centered Maintenance (RCM) modeling and strategy selection for a large missile system with opportunity to support other reliability related modeling and analysis efforts. The RCM team focuses on using failure modes to model potential maintenance strategies and select the best strategy for the overall weapon system. An ideal candidate will have experience 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. Experience with Air Force or military maintenance operations is preferred.

What You'll Get To Do:

Develops new and/or integrates existing system simulation frameworks, performance models and algorithms, threat models and command and control models.
Simulates real-time operations and develops software that simulates behavior of systems.
Develops integrates and uses advanced graphical user interfaces and visualization tools.
Models operational environments, performs trade studies via computer simulation and recommends alternative architectures.
Performs operational analysis and mission effectiveness analysis.

Basic Qualifications:

Principal Systems Engineer (T03): Bachelor's degree in a Science, Technology, Engineering or Mathematics (STEM) discipline from an accredited university and 5 years of experience, 3 years of experience with Master's degree or 1 year of experience with a PhD.
Sr Principal Systems Engineer (T04): 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 of experience with a PhD.

Required for both levels:

Must be a US Citizen with an active U.S. Government DoD Secret security clearance at time of application with an investigation completed 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 Reliability Engineering tools (ReliaSoft, MADe, Opus, or similar) - 1 year of experience
Proficiency with data handling scripting (SQL, Azure, PowerBI or similar) - 1 year of experience
Proficiency with engineering scripting (Python, C++/C#, Matlab, VBA or similar) - 3 years of experience
Demonstrated technical expertise in the areas of modeling, simulation, and analysis (MS&A) or Reliability, Availability, Maintainability, Cost (RAM-C) - 3 years of experience
Demonstrated technical expertise with Systems Engineering (SE) (Systems engineering V, systems integration, RvsC analysis, VV&A, or similar) - 3 years experience
Knowledge of Agile development practices
Capable of working with minimal direction, independently determining and developing technical objectives of assignments, and presenting work upon completion for high level review.
Excellent interpersonal, communication, and organizational skills

Preferred Qualifications:

Must be a US Citizen with an active U.S. Government DoD Top Secret security clearance at time of application with an investigation completed within the last 6 years
Bachelor's degree in Engineering or a related technical discipline (STEM)
Experience with Agile Release Train (ART) or Scaled Agile Framework (SAFe)
Experience with the Atlassian Tool Suite (Jira / Confluence)
Advanced use of standard Microsoft Office products to include development tools
Strong interest to interact with a wide variety of skills across multiple engineering domains. These engineering domains include: Systems Safety, Reliability, Availability, Maintainability, Integrated Logistics Support, Product Support, Digital Integration, and Sustainment Cost Modeling
Experience with pathfinding / blank page development efforts
INCOSE certifications
Knowledge of MIL-HBK-882E, MIL-STD-3034A, NAVAIR 00-25-403, DoDM 4151.25.

As a full-time employee of Northrop Grumman Space Systems, you are eligible for our robust benefits package including:

Medical, Dental & Vision coverage
401k
Educational Assistance
Life Insurance
Employee Assistance Programs & Work/Life Solutions
Paid Time Off
Health & Wellness Resources
Employee Discounts

This position's standard work schedule is 9/80. The 9/80 schedule allows employees who work a nine-hour day Monday through Thursday to take every other Friday off.

#SentinelSystems

Primary Level Salary Range: $98,400.00 - $147,600.00

Secondary Level Salary Range: $122,800.00 - $184,200.00

The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions.

Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business.

The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates.

Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit http://www.northropgrumman.com/EEO. U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.

Job Category: Engineering

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Skills

Control systems
RCM
Communicate with stakeholders
Microsoft Access
SAP
SQL
Microsoft Azure
Microsoft Power BI
Python
C++
C#
VBA
Agile development
Communication skills
Organizational skills
Agile
Jira
Atlassian Confluence
Microsoft Office
Logistics

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