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Sentinel - Principal​/Sr. Principal Mechanical Engineer

Job in Clearfield, Davis County, Utah, 84015, USA
Listing for: Northrop Grumman
Full Time position
Listed on 2026-07-01
Job specializations:
  • Engineering
    Systems Engineer, Mechanical Engineer, Engineering Design & Technologists, Aerospace / Aviation / Avionics
Job Description & How to Apply Below
Position: Sentinel - Principal/Sr. Principal Mechanical Engineer (18982)

Principal Or Sr. Principal Mechanical Engineer

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 Clearfield, 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.

This position may be filled at a higher level based on qualifications below.

Roles and Responsibilities

  • Design, research, and develop engineering products for production.
  • Assess conditions of aging weapons system, in collaboration with weapon system sustainment engineering specialists, to identify field monitoring solutions.
  • Design engineering will be performed utilizing software packages such as NX and Teamcenter.
  • Excellent communication and people skills required to work with key stakeholders within other engineering disciplines, including but not limited to system engineering and electrical engineering for capturing all engineering requirements needed for the design and to achieve program objectives in a timely manner.
  • Critical thinking and personal organizational skills required to capture and complete a design that meets all engineering requirements.
  • Additional work responsibilities may include task planning, conduct technical peer reviews, and mentoring junior engineers.

Basic Qualifications

  • Requires a bachelor's degree in a Science, Technology, Engineering or Mathematics (STEM) discipline from an accredited university with 5 years of related experience; or a master's degree with 3 years of related experience (Sr. Principal level requires 8 years with a bachelor's; or 6 years with a master's)
  • Must be a US Citizen with an active U.S. Government Secret Security 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
  • Requires design experience performing CAD modeling with design tools such as Siemens NX or similar

Preferred Qualifications

  • Active U.S. Government SAP access for NGDS SDS programs
  • Master of Science in Mechanical or Aerospace Engineering
  • 3+ years NX and Teamcenter experience
  • 5+ design experience
  • Aerospace/Defense Industry experience
  • Hard working, motivated, and independent worker
  • Excellent communication skills and people skills
  • Excellent critical thinking and personal organizational skills

Position Benefits

  • Medical, Dental & Vision coverage
  • 401k
  • Educational…
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