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Sr. Principal Engineer Mechani

Requisition ID: R10040161

  • Category IconCategory: Engineering
  • Location IconLocation: Philadelphia, PA, USA
  • Citizenship IconCitizenship Required: United States Citizenship
  • Clearance IconClearance Type: Secret
  • Telecommute IconTelecommute: No- Teleworking not available for this position
  • Shift IconShift: Not Applicable (United States of America)
  • Travel IconTravel Required: Yes, 10% of the Time
  • Positions IconPositions Available: 1

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 Mission Systems – Marine Systems is seeking a Mechanical Design Engineer to join our team of qualified, diverse individuals. The Design Engineer researches, plans, designs and develops mechanical products and systems such as mechanical, thermal hydraulic or heat transfer systems for production, transmission, measurement, and use of energy. Applies research to the planning, design, development, and testing of mechanical and/or electromechanical systems, instruments, controls, engines, and/or machines.

This position focuses on mechanical design and general engineering, including surface ship and submarine propulsion and power generation systems involving steam turbines, gearboxes and generator sets.  Activities include developing new designs from concept, thru detailed design, manufacture and test phases. Job requirements also include supporting manufacturing activities on existing production contracts.

Travel will be required to support supplier and customer meetings.

What You’ll get to Do:

As a Mechanical Engineering team member you will drive and contribute to design and development of critical components and systems for naval propulsion and power generation applications involving turbines, electric motors, gearboxes and generator sets. He/she will be developing new designs from concept through detailed design, manufacture and test phases. Job responsibilities also include supporting manufacturing activities on existing production contracts. Travel may be required to support supplier and customer meetings.

Basic Qualifications T4:

- Bachelors in a STEM discipline (Science, Technology, Engineering or Math) and 9+ years of relevant work experience; or Masters degree in a STEM discipline and 7+ years of work experience

- Knowledge in mechanical engineering principles, and experience in developing design concepts, performing trade studies, and conducting supporting evaluations and analyses

- CAD experience, such as CREO or NX

- A basic knowledge of ANSI Y14.5 drawing standards and geometric dimensioning and tolerancing (GD&T)

- Ability to obtain and maintain a DoD Secret Clearance

- Ability to work as a contributing engineering team member

These Qualifications are Preferred:

- Previous experience in rotating machinery

- Local candidates to support hardware manufacture


Preferred Qualifications:

  • Knowledge in GD&T and solid modeling NX

  • Current active DoD Secret clearance

  • Masters degree in Engineering Discipline.

  • 2 years’ experience in rotating machinery


Salary Range: $114,300 USD - $171,500 USD

Employees may be eligible for 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 health and safety of our employees and their families is a top priority. The company encourages employees to remain up-to-date on their COVID-19 vaccinations. U.S. Northrop Grumman employees may be required, in the future, to be vaccinated or have an approved disability/medical or religious accommodation, pursuant to future court decisions and/or government action on the currently stayed federal contractor vaccine mandate under Executive Order 14042 https://www.saferfederalworkforce.gov/contractors/.

Northrop Grumman is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action 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/AA and Pay Transparency statement, please visit http://www.northropgrumman.com/EEO. U.S. Citizenship is required for most positions.



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What's great about
Northrop Grumman

  1. Be part of a culture that thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work.
  2. Use your skills to build and deliver innovative tech solutions that protect the world and shape a better future.
  3. Enjoy benefits like work-life balance, education assistance and paid time off.


Did you know?

Northrop Grumman leads the industry team for NASA’s James Webb Space Telescope, the largest, most complex and powerful space telescope ever built. Launched in December 2021, the telescope incorporates innovative design, advanced technology, and groundbreaking engineering, and will fundamentally alter our understanding of the universe.