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Posted July 02, 2026
Northrop Grumman

Sentinel - Principal/Sr Principal Mechanical Engineer (17104) - R10238522

Roy, UT, US Full Time
$89400 - $134200
Reference: R10238522

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 or Sr. Principal Mechanical Engineer to join our team of qualified, diverse individuals. This position will be located at Roy, UT to support the Sentinel (GBSD) program in the Strategic Deterrent Systems (SDS) Division. 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 applicant will be responsible for the design, development, production, and deployment of launch-equipment hardware and systems for each weapons system facility. Working in a dynamic, people-focused environment, the engineer will collaborate closely with users, customers, and fellow engineers to deliver high performance mechanical solutions for the Sentinel program. This position may be filled at a higher level based on qualifications below.

Roles and Responsibilities

  • Primary role is to serve as a mechanical designer for mechanical systems (mechanisms) design on a major Northrop Grumman Defense Systems program
  • Research, plan, design, and develop mechanical/aerospace products for aircraft, spacecraft, launch vehicles, missiles, ground vehicles and associated ground and test equipment
  • Develop CAD models and 3D model based drawings using Siemens NX and Team Center
  • Verify specifications and designs through modeling and simulation, test data processing, and performance analysis
  • Support all phases of the systems lifecycle including design, drawings, fabrication, test, installation, operation and maintenance
  • Design of components/systems, and preliminary/sizing analysis for both stress and dynamic analysis of aerospace structures.
  • Preparation and presentation of reports, briefings, design documents (drawings and specifications) and interface with customers.
  • Attend internal program meetings, customer technical exchanges, and supplier briefings; present design status during formal milestone reviews
  • Assisting IPT lead in managing team schedule and mentoring junior engineers in mechanical design

Basic Qualifications

This position may be filled at a Principal level or Senior Principal level

  • Requires a Bachelor’s degree in Mechanical Engineering or related STEM field with 5 years of relevant experience (Sr. Principal level requires a Bachelor’s degree with 8 years of experience; or a Master's with 6 years of experience)
  • Requires U.S. Citizenship with an Active Secret Security Clearance or higher
  • Requires 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
  • Requires a minimum 5 years of experience with CAD modeling (Siemens NX preferred)
  • Requires a minimum 5 years of experience in mechanical engineering that includes a background in mechanical systems (mechanisms preferred)
  • Requires experience with common engineering standards (ISO, ASME, Mil Spec, NAS, etc.)

Preferred Qualifications:

  • Knowledge of GD&T, materials selection, and manufacturing processes
  • Demonstrated ability to lead design teams and drive technical decisions
  • Experience with Team Center (CPLM) and the Product Definition Package (PDP) release process
  • Experience with the ASME Y14.X suite of engineering drawing standards
  • Experience with requirements management and model-based systems engineering (MBSE) principles
  • Experience with ICBMs or launch equipment systems
  • Experience performing dynamic and static analysis (NX Motion or ANSYS preferred)
  • Proficiency in DOORS, CAMEO, Jira and Confluence
  • Experience in managing or leading an interdisciplinary engineering team from concept creation through test and verification
  • Experience as a Control Account Management (CAM)
  • Ability to operate independently with minimal supervision, function in a dynamic environment, and be flexible to changing direction
  • Proficient written and verbal communication skills when conveying technical content

Position Benefits

As a full-time employee of Northrop Grumman Defense 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. This role may offer a competitive relocation assistance package.

Primary Level Salary Range: $89,400.00 - $134,200.00

Secondary Level Salary Range: $111,700.00 - $167,500.00

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.

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