Northrop Grumman is seeking a highly skilled Principal Quality Engineer to join our Mission Assurance team supporting Medium Caliber ammunition production in Plymouth, MN. In this key role, you will help ensure the reliability and performance of products that support our warfighters and national security
Overview
This position will provide Quality Engineering and Mission Assurance support to Medium Caliber Ammunition Production programs. This includes production line support at multiple locations, supplier inspection and monitoring, identifying contractual Quality requirements, preparing quality program plans, inspection procedures and quality requirements flow-down, supplier process monitoring, application of lean/six-sigma tools, drawing reviews, customer interface/reports/submittals, and reviewing product acceptance data.
Key Responsibilities
Program & Quality Systems Leadership
- Ensure compliance to contract quality requirements and AS9100 / ISO 9001 Quality Management System processes on development and production programs.
- Identify contractual quality requirements and translate them into quality program plans, inspection procedures, and quality requirement flow-down to suppliers.
- Provide expertise and guidance to program teams and suppliers on quality assurance, quality systems, tools, training, problem solving, statistical analysis, and continuous improvement.
Problem Solving, Root Cause & Corrective Action
- Lead and support cross‑functional investigations with internal teams, suppliers, and customers.
- Conduct technical diagnosis and root cause analysis for customer complaints, field failures, and internal escapes.
- Drive corrective and preventive actions (CAPA) to eliminate recurrence and reduce risk.
- Work with Operations to initiate effective containment, investigation, and countermeasures to prevent defect outflow in‑house and to customers.
Production & Supplier Quality
- Provide production line support at multiple locations, including on‑site monitoring of manufacturing lines and supplier processes.
- Assess suppliers’ capabilities and conformance to their Quality Systems, including process controls and inspection methods.
- Evaluate manufacturing methods and inspection capabilities; identify key characteristics and appropriate inspection strategies.
Technical Quality Engineering
- Develop and implement product inspection plans and incoming inspection procedures.
- Initiate and support Material Review Board (MRB) actions; resolve nonconforming material issues and facilitate corrective actions.
- Review drawings for inspection capability and conformance to Geometric Dimensioning and Tolerancing (GD&T) standards.
- Perform statistical analysis (yield, SPC, key characteristics) and use Lean/Six Sigma tools to drive process improvements.
- Prepare and manage quality documentation, including quality code requisitions, CDRL (Contract Data Requirements List) deliverables, and customer submittals.
- Review inspection and acceptance data to assess process capability and product compliance.
- Report quality and mission assurance status to program management, quality leadership, and customers.
Basic Qualifications
- Bachelor of Science in Engineering or a relevant STEM discipline.
- 5+ years of experience in quality planning, quality tools, and analysis in a manufacturing environment, or a minimum of 5 years in applied engineering.
- Experience in the aerospace and defense industry supporting highly regulated products or systems.
- US Citizenship is required.
- Manufacturing background with familiarity in metals and electronics production.
- Strong background in inspection equipment and techniques, with general knowledge of metrology and calibration.
- Solid understanding of engineering drawings and GD&T.
- Proficiency with Quality Tools (e.g., Statistics, DOE, FMEA, MSA).
- Experience working in a highly regulated environment (e.g., defense, aerospace, or similar).
- Strong technical knowledge in mechanical manufacturing, tools, gages, and calibration.
- ASQ certifications (CQA, CQE, CQM, or equivalent) are a plus.
- Proficiency with standard computer and data analysis tools.
- Excellent verbal and written communication skills with internal and external customers.
- Willingness to travel up to 25%, domestically and internationally, sometimes on short notice.
Primary Level Salary Range: $98,900.00 - $148,300.00The 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.
Skills Required
- Bachelor of Science degree in engineering or a relevant STEM discipline
- At least 5 years of experience in quality planning, quality tools, and analysis in manufacturing, or 5 years of applied engineering experience
- Experience in the aerospace and defense industry supporting highly regulated products or systems
- U.S. citizenship
- Manufacturing experience with metals and electronics production
- Experience with inspection equipment and techniques, metrology, and calibration
- Understanding of engineering drawings and GD&T
- Proficiency with quality tools including statistics, DOE, FMEA, and MSA
- Experience working in a highly regulated environment such as defense or aerospace
- Technical knowledge of mechanical manufacturing, tools, gages, and calibration
- ASQ certification such as CQA, CQE, CQM, or equivalent
- Proficiency with standard computer and data analysis tools
- Excellent verbal and written communication skills
- Willingness to travel up to 25 percent domestically and internationally, sometimes on short notice
Northrop Grumman Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Northrop Grumman and has not been reviewed or approved by Northrop Grumman.
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Healthcare Strength — Health coverage offers multiple medical plan options by region alongside dental, vision, mental‑health resources, and wellness programs. Recent materials also highlight added family‑building support, including a dedicated fertility benefit.
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Retirement Support — The 401(k) savings plan is positioned as competitive with a company match, auto‑escalation features, and access to an employee stock fund/ESPP. Official filings and benefits guides emphasize retirement as a core element of the Total Rewards package.
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Leave & Time Off Breadth — Many sites offer a 9/80 schedule, generous PTO, paid holidays, and flexible/telework options where program needs allow. Paid parental and caregiver leave are prominently featured, with recent enhancements for the delivering parent.
Northrop Grumman Insights
What We Do
We are a close-knit community of big thinkers collaborating to keep the world safe. Our passion, creativity and expertise bring next-level technology solutions to life in autonomous systems, cyber, C4ISR, strike, space, and logistics and modernization for our customers around the globe. On the Northrop Grumman team, you’ll join our pursuit of excellence immersed in a dynamic culture of innovation and respect. Your unique perspective will help achieve our shared vision for the future of global security. Every step of the way, you'll be supported by world-class training, employee resource groups and a comprehensive benefits package that enables greater health and happiness for you and your family. Worldwide and across disciplines, we’re challenging what’s possible for technology to protect people and places from undersea to outer space and into cyberspace. And we see the impact of our performance every day. We are Northrop Grumman, and we work on what matters—now, you too can make a difference. Explore opportunities in engineering, IT, manufacturing, business management, cybersecurity and more with us. Northrop Grumman is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action Employer.








