Sr. Principal Systems Engineer
Listed on 2026-07-19
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Engineering
Systems Engineer, Test Engineer
RELOCATION ASSISTANCE:
Relocation assistance may be available.
CLEARANCE REQUIRED FOR START:
Yes.
CLEARANCE TYPE:
Top Secret.
TRAVEL:
Yes, 10% of the Time.
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.
Northrop Grumman Defense Systems is seeking a Sr. Principal Systems Engineer in Roy, Utah to work a restricted effort as part of the flight systems futures operating unit. This group focuses on technologies for advancing current systems. We focus on advanced payloads and hypersonic re-entry vehicle.
This Role Will Have The Following Responsibilities- Contribute to the definition and evolution of system architecture using Model Based Systems Engineering (MBSE) tools (e.g., IBM Rhapsody, Cameo Systems Modeler).
- Generate, allocate, and trace requirements across the system hierarchy; develop verification methodologies that meet NG and DoD standards.
- Author requirement sets and produce Interface Control Documents (ICDs) that precisely define internal and external system interfaces.
- Create and coordinate customer deliverables (technical reports, trade studies, compliance matrices) for program reviews and external stakeholders.
- Participate in lab based demonstrations and hardware in the loop (HIL) testing to validate system behavior against requirements.
- Lead cross functional reviews (design, trade, verification) and ensure compliance with engineering processes (CMMI, DO178C, MISRAC, NQA1).
- Mentor junior engineers and foster best practices in requirements management, verification planning, and MBSE modeling.
- Bachelor's degree in Systems, Software, or related STEM degree field with 8 years of experience; or 6 years experience with a Master's (MS) degree; or 4 years experience with a STEM PhD.
- Must be a US Citizen with a current/active US Government Top Secret clearance at time of application, current and within scope, renewed or initiated within the last 6 years.
- Must be able to be successfully screened for Enhanced Security Clearances, within a reasonable amount of time as determined by the company to meet its business needs.
- 3+ years experience to include full lifecycle work (concept, development, verification, sustainment), SysML based MBSE tools (IBM Rhapsody, Cameo, SysML v2) and the ability to develop and maintain system models.
- 3+ experience in writing, managing, and tracing complex requirements (e.g., using DOORS, Jama, or Polarion), defining verification plans, test procedures, executing system level verification activities, and creating and governing ICDs for hardware, software, and external system interfaces.
- Strong written and verbal communication; ability to produce clear technical documentation and present to senior leadership and customers.
- Hands on experience conducting lab based hardware demonstrations and integrating system models with test rigs.
- Direct exposure to Nuclear Surety and Nuclear Safety systems (e.g., NQA1, DOE safety standards).
- Familiarity with model based test generation and automated test frameworks.
- Familiarity with Northrop Grumman engineering standards (CMMI, DO178C, MILSTD
498, NQA1) and safety critical development practices. - Basic proficiency in Python or MATLAB for data analysis and test automation (not a primary development role).
- Professional certifications (e.g., INCOSE Certified Systems Engineering Professional, Certified MBSE).
As a full-time employee of Northrop Grumman, 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 a 9/80. The 9/80 schedule allows employees who work a nine-hour day Monday through Thursday to take every other Friday off.
Primary Level Salary Range: $ - $
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…
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