Northrop Grumman Aeronautics Systems sector is seeking a Principal Mass Properties Engineer (Level 3) OR Senior Principal Mass Properties Engineer (Level 4) to join our team of qualified, diverse individuals in defining the future. This position will be located in Melbourne, FL.
As a member of the Mass Properties team, you will perform functional and timeline analyses, conduct detailed trade studies, and perform mass properties requirements allocation to transform customer and product needs into precise hardware and software specifications. You will delve into system hardware and environmental conditions to identify and optimize mass properties solutions, leveraging advanced solid modeling, database tools, and standard office applications. Your expertise will directly support the successful achievement of critical program requirements.
Key Responsibilities may include, but are not limited to:
Supporting the implementation of a Mass Properties Management and Control Program
Accurate estimating and optimizing of mass properties to achieve vehicle performance and fulfill weight based program metrics
Establishing specification and design target weights
Support the maintenance of the Mass Properties accounting and reporting systems to inform the customer and management of current and projected mass properties trends
Providing mass properties data for cost analyses and vehicle design and analysis
Evaluating subcontractor proposals, interacting with and overseeing subcontractor mass properties management and control
Reviewing drawings to achieve mass properties management and control
Measuring/weighing vehicle and/or components to increase vehicle weight estimate accuracy
Providing mass properties data in support of operational flight manual
Basic Qualifications:
This requisition may be filled at a Principal Mass Properties Engineer (Level 3) OR Senior Principal Mass Properties Engineer (Level 4) level based on the qualifications below.
Principal Mass Properties Engineer (Level 3)
Must have a Bachelor’s Degree in a STEM (Science, Technology, Engineering, or Math) discipline and 5 years of related professional/military experience; OR a Master’s Degree in a STEM discipline and 3 years of related professional/military experience; OR a Ph.D. in a STEM discipline and 1 year of related professional/military experience.
Must have an active US Government Secret clearance (with a background investigation within the past 6 years or enrolled into Continuous Evaluation).
Ability to obtain and maintain US Government Top Secret clearance and Special Access Program (SAP) within a reasonable amount of time as determined by business needs.
Experience with mass property and weight and balance analysis.
Proven ability with Society of Allied Weight Engineers (SAWE) Recommended Practices (RP) 7 and/or 8.
Senior Principal Mass Properties Engineer (Level 4
Must have a Bachelor’s Degree in a STEM (Science, Technology, Engineering, or Math) discipline and 8 years of related professional/military experience; OR a Master’s Degree in a STEM discipline and 6 years of related professional/military experience; OR a Ph.D. in a STEM discipline and 4 years of related professional/military experience.
Must have an active US Government Secret clearance (with a background investigation within the past 6 years or enrolled into Continuous Evaluation).
Ability to obtain and maintain US Government Top Secret clearance and Special Access Program (SAP) within a reasonable amount of time as determined by business needs.
Experience with mass property and weight and balance analysis.
Proven ability with Society of Allied Weight Engineers (SAWE) Recommended Practices (RP) 7 and/or 8.
Preferred Qualifications:
An active US Government Top Secret clearance (with a background investigation within the past 6 years or enrolled into Continuous Evaluation).
Aircraft Weight and Balance Certification
Automated Weight and Balance System (AWBS) experience
Experience in vehicle design and manufacturing techniques
Siemens NX or CATIA proficiency
Familiarity with electrical harness weight estimation and calculation
Familiarity with a Common Product Lifecycle Management system such as SmarTeam or Teamcenter
Skills Required
- Bachelor's in STEM with 5 years related experience OR Master's in STEM with 3 years OR Ph.D. with 1 year (Principal level)
- Bachelor's in STEM with 8 years related experience OR Master's in STEM with 6 years OR Ph.D. with 4 years (Senior Principal level)
- Active US Government Secret clearance (background investigation within past 6 years or enrolled in Continuous Evaluation)
- Ability to obtain and maintain US Government Top Secret clearance and Special Access Program (SAP) access
- Experience with mass properties and weight and balance analysis
- Proven ability with Society of Allied Weight Engineers (SAWE) Recommended Practices RP7 and/or RP8
- Active US Government Top Secret clearance
- Aircraft Weight and Balance Certification
- Automated Weight and Balance System (AWBS) experience
- Experience in vehicle design and manufacturing techniques
- Siemens NX or CATIA proficiency
- Familiarity with electrical harness weight estimation and calculation
- Familiarity with common PLM systems such as SmarTeam or Teamcenter
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.









