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Sr Principal Mechanical Engineer

Plymouth, Minnesota, United States
Full Time On-site

Summary

Job Description

RELOCATION ASSISTANCE: No relocation assistance available

CLEARANCE REQUIRED FOR START: No

CLEARANCE TYPE: None

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.

Sr. Principal Mechanical Engineer
Northrop Grumman – Medium Caliber Ammunition (MCA) Co‑Production Team

This opportunity is ideal for a self‑motivated, proactive engineer who will lead projects for the MCA co‑production effort. Our engineers work in a high‑visibility, fast‑paced environment that demands hands‑on problem solving, cross‑functional collaboration, and clear communication. The role requires up to 50% domestic and international travel and a strong attention to detail. If you enjoy varied technical challenges each day, this is the place for you.

Position Description

  • Reports to the MCA Co‑Production Manager and interfaces with program and support functions.
  • Leads a team of engineers to establish manufacturing/assembly capability for multiple MCA cartridges at overseas sites.
  • Works with team to design and procure varying degrees of automated equipment capable of manufacturing multiple MCA cartridges.
  • Assists with installation and commissioning of equipment at final facilities, often abroad.
  • Contributes to engineering project proposals for future opportunities.
  • Communicates issues and status to program and functional management on a regular cadence.
  • Works closely with Systems Engineering and the Quality Management System (QMS) to ensure rigor throughout the engineering lifecycle.
  • Serves as the primary technical interface with external customers and technical organizations.
  • May step into additional roles as business needs dictate.
  • Travels up to 50 % domestically and internationally; deployments during implementation can be up to 30 consecutive days.

Responsibilities

  • Direct a team of three to five engineers throughout the program.
  • Act as Cost Account Manager (CAM) to ensure schedule and budget compliance.
  • Work closely with key vendors to design, produce, and qualify assembly equipment.
  • Develops and documents production processes, procedures, improvements, and customer‑training material.
  • Create or update manufacturing and assembly process documentation.
  • Provide frequent status updates to all organizational levels.
  • Maintain extensive contact with assigned internal and external project customers.
  • Generate and track open‑issue lists to timely resolution.
  • Trial new processes and technologies to improve quality and throughput.
  • Apply solid mechanical‑systems and manufacturing‑process knowledge.

Basic Qualifications

  • Bachelor of Science degree in an engineering discipline plus 8 years of relevant experience in an Engineering capacity;
  • Or master’s degree in an engineering discipline plus 6 years of relevant experience;
  • Or Ph.D. in an engineering discipline + 4 years of relevant experience
  • U.S. citizenship is required

Preferred Qualifications

  • Experience in automated equipment design/manufacturing.
  • 10+ years of overall professional experience.
  • 5+ years of experience leading a team of engineers.
  • 5+ years of experience in a manufacturing environment.
  • Working knowledge of Geometric Dimensioning and Tolerancing (GD&T).
  • Experience as a Cost Account Manager (CAM), familiarity with Earned Value Management System (EVMS) and Item Master Scheduling (IMS).

Primary Level Salary Range: $123,400.00 - $185,000.00

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.

About Northrop Grumman

Northrop Grumman

Northrop Grumman is one of the largest aerospace and defense companies in the United States, building advanced systems across space, air, land, sea, and cyber domains. The company is known for some of the most complex defense programs in the world, including stealth aircraft, autonomous systems, missile defense technologies, satellites, and space-based intelligence platforms that support U.S. national security operations.

For job seekers, Northrop Grumman offers careers across a wide range of high-impact fields including aerospace engineering, software development, cybersecurity, systems engineering, manufacturing, program management, and intelligence support. The company is especially attractive to veterans, cleared professionals, and engineers who want to work on mission-critical systems that directly support the Department of Defense and intelligence community. Many roles involve long-term programs with significant technical depth and real-world operational impact.

Unlike smaller defense startups focused on narrow capabilities, Northrop Grumman operates across multiple major mission areas, giving employees exposure to highly advanced programs such as stealth platforms, space systems, autonomous vehicles, and next-generation command-and-control systems. The company is also a major leader in classified space and intelligence systems, where cutting-edge engineering and secure infrastructure play a critical role in national defense.

As global competition in space, cyber, and advanced military systems continues to intensify, Northrop Grumman remains one of the most strategically important employers in the defense industry. For professionals seeking stable, highly technical careers with long-term impact on national security, Northrop Grumman continues to stand out as a leading destination in aerospace and defense.

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