Principal Mechanical Design Engineer/Sr. Principal Mechanical Design Engineer

Company: Northrop Grumman
Location: Redondo Beach
Posted on: April 5, 2026

Job Description:

RELOCATION ASSISTANCE: No relocation assistance 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. This position description does not represent a current opening but may be used to identify candidates with skills and experience for positions within Northrop Grumman that frequently become available. Candidates who express an interest may be considered for future positions at Northrop Grumman. Northrop Grumman Space Sector is seeking a Principal Mechanical Design Engineer / Sr. Principal Mechanical Design Engineer to support our Structures Design, Analysis and Integration (SDAI) department (within Western Region Engineering) in support of the Launch Vehicles Business Unit. This role can be based out of Redondo Beach or Azusa, California. Job responsibilities include, but are not limited to, the following: Work within the Northrop Grumman Design group and will be responsible for creating drawing/design packages with proper content and ensuring compliance with applicable industry and military standards Review designs for fit, function, manufacturability, economy of fabrication, and verifying completed work, checking dimensions, materials, and quantities to be used Review of tolerance analysis, hardware selection, and fitment on assembly prints Resolve drawing-interpretation issues as they arise Verify 3D models submitted to manufacturing using Siemens NX 1946, managed with Teamcenter Serve as a liaison among various engineering disciplines, including Manufacturing and Quality Model fully defined components and assemblies efficiently in Siemens NX 1946 (Teamcenter), and produce/revise parametric drawings in conformance with ASME modeling and drawing standards Utilize Microsoft Word, Excel, Windows, and NX 1946 as required Communicate effectively, both verbally and in writing Perform work quickly and accurately under schedule pressure while demonstrating patience Exhibit strong time management and organizational skills This requisition may be filled at either a Principal Mechanical Design Engineer level or a Sr. Principal Mechanical Design Engineer level based on the qualifications listed below. Basic Qualifications – Principal Mechanical Design Engineer (Level 3): Bachelor's degree in a STEM (Science, Technology, Engineering, and Mathematics) discipline with 5 years of related engineering design experience; OR a Master’s degree in STEM with 3 years of related engineering design experience, OR a Ph.D. in STEM with 1 years of related engineering design experience. Must currently have an active DoD Secret security clearance at time of application Demonstrated experience in geometric dimensioning and tolerancing Working knowledge of standard manufacturing processes including CNC Mill and Lathe operations Proficiency in Siemens NX 1946 and Teamcenter Basic Qualifications – Sr. Principal Mechanical Design Engineer (Level 4 ) : Bachelor's degree in a STEM (Science, Technology, Engineering, and Mathematics) discipline with 8 years of related engineering design experience; OR a Master’s degree in STEM with 6 years of related engineering design experience, OR a Ph.D. in STEM with 4 years of related engineering design experience. Must currently have an active DoD Secret security clearance at time of application Demonstrated experience in geometric dimensioning and tolerancing Working knowledge of standard manufacturing processes including CNC Mill and Lathe operations Proficiency in Siemens NX 1946 and Teamcenter Preferred Qualifications: Experience with Product Manufacturing Information (PMI) CAD modeling in manufacturing environment ASME Y14.5-2009 Experience working with DoD programs Working knowledge of ASME Y14.100 and Mil-Standard 100 Experienced with weld design per AWS D17.1 and D1.1 Primary Level Salary Range: $114,000.00 - $171,000.00 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.

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