Principal Structural Engineer
Architecture & Engineering (Physical)Posted 24 Aug 2026
Advertised as “Principal/ Sr Principal Structural Engineer - 19018”
Posted 24 Aug 2026
Advertised as “Principal/ Sr Principal Structural Engineer - 19018”
The original posting with the fluff stripped out
| Base salary | US$98,500 – US$184,000 / yr |
|---|
No unique specialisation
Field of studyEngineering, Technology, Science, Mathematics (or related)
Study levelBachelor's or higher
RELOCATION ASSISTANCE: Relocation assistance may be available
CLEARANCE REQUIRED FOR START: Yes
CLEARANCE TYPE: Secret
TRAVEL: Yes, 25% 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.
At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems in air and space that impact people’s lives around the world today, and for generations to come. Our work preserves freedom, democracy, and advances human discovery and our understanding of the universe. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future and have a lot of 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 Principal/Sr. Principal Structural Engineer. This position is located in Roy, Utah. This role may offer a competitive relocation assistance package. This position is contingent upon award.
What You Will Get To Do:
The ideal candidate is a team player; but also, a strong independent contributor with strong leadership skills, demonstrated problem-solving skills, excellent communication skills, as well as interpersonal and organizational skills and a proactive, detail-oriented approach.
Analyzes, researches and develops structural engineering specifications involving metals, non-metallic or composite structural materials for product design, or operation of product to include structures, mechanical, hydraulic, electrical and electronics, power plant, armament, heating and ventilating, equipment and maintenance designs. Analyzes damage tolerance, durability, design allowables and structural modeling. Specific structural engineering specialties may include dynamics and loads, stability and stress fatigue and thermal analysis. Tools utilized may include
Position Benefits:
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 positions 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.
Basic Qualifications:
This role can be filled at the Principal Structural Engineer (T03) or Sr. Principal Structural Engineer (T04) level.
Principal Structural Engineer: Bachelors degree in a Science, Technology, Engineering, or Mathematics (STEM) discipline from an accredited university and 5 years of relevant experience, OR a Masters degree and 3 years of relevant experience, OR a PhD and 1 years of relevant experience.
Must be a US Citizen with an active DoD 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.
Must have mechanical design experience for hypersonic systems, flight systems, missiles, etc.
Must have experience with systems packaging, sizing, and weight tradeoffs and analysis.
Experience creating and releasing mechanical product definition packages (PDPs).
Knowledge of typical aerospace manufacturing processes and designing for manufacturability.
Experience designing air vehicle structures.
Experience developing mechanical interfaces and creating Interface Control Models (ICMs).
Proficiency with GD&T following ASME Y14.5.
Experience managing large system CAD models and mechanical interfaces.
Experience assessing and managing mass properties for large systems (knowledge of AIAA S-120A preferred).
Experience performing air vehicle static structural assessments including pressure mapping, inertial loading, and buckling.
Experience developing first-order structural sizing tools for quick turn assessments.
Demonstrated technical leadership abilities.
Demonstrated performance executing in a fast-paced R&D environment.
Sr. Principal Structural Engineer: Bachelors degree in a Science, Technology, Engineering, or Mathematics (STEM) discipline from an accredited university and 8 years of relevant experience, OR a Masters degree and 6 years of relevant experience, OR a PhD and 4 years of relevant experience.
Must be a US Citizen with an active DoD Secret Clearance, at time of application, current and within scope, with an investigation date within the last 6 years.
Must have mechanical design experience for hypersonic systems, flight systems, missiles, etc.
Must have experience with systems packaging, sizing, and weight tradeoffs and analysis.
Experience creating and releasing mechanical product definition packages (PDPs).
Knowledge of typical aerospace manufacturing processes and designing for manufacturability.
Experience designing air vehicle structures.
Experience developing mechanical interfaces and creating Interface Control Models (ICMs).
Proficiency with GD&T following ASME Y14.5.
Experience managing large system CAD models and mechanical interfaces.
Experience assessing and managing mass properties for large systems (knowledge of AIAA S-120A preferred).
Experience performing air vehicle static structural assessments including pressure mapping, inertial loading, and buckling.
Experience developing first-order structural sizing tools for quick turn assessments.
Demonstrated technical leadership abilities.
Demonstrated performance executing in a fast-paced R&D environment.
Preferred Qualifications:
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.