Northrop Grumman Marine Systems specializes in the analysis, development, manufacture, assembly and testing of missile launching and handling systems, propulsion, and power generation systems for naval surface ships and submarines.
Northrop Grumman Mission Systems sector is seeking an Aeronautical/Mechanical Engineer 2/3 to join a highly talented, motivated, and collaborative Performance Analysis team in Sunnyvale, California. This role offers the opportunity to contribute to both current and future launcher programs through the development and application of physics-based modeling and simulation software. Candidate will assist in the development of complex mathematical models, heat transfer, hydraulic, and structural (FEA) performance assessment models for missile launching systems. Models focus on non-linear structural dynamics, gas dynamics, hydrodynamics, kinematics, heat transfer, and fluid/ structure interaction; elements required to accurately predict launch and shock performance. Candidate will also perform test data analysis for missile launch and shock tests. Candidate must be able to formally document results (e.g. technical reports, publications, presentations) and communicate effectively with internal and external customers.
This is a dual level requisition which can be filled as a Level 2 or Level 3 Engineer
Basic Qualifications for Level 2:
· Bachelor’s degree in Aeronautical/Aerospace Engineering, Mechanical Engineering, Structural Engineering, Physics, or a closely related technical discipline with a minimum of 2 years of relevant industry experience in modeling and simulation, test data reduction, or statistical analysis or a Master’s degree in Aeronautical/Aerospace Engineering, Mechanical Engineering, Structural Engineering, Physics, or a closely related technical discipline with no experience.
- Proficiency in at least one programming language (C/C++, Python, MATLAB or FORTRAN).
- Strong writing skills for technical documentation and communication.
- Must be able to work onsite 4 days a week at our Sunnyvale Site
- Must be a U.S. citizenship
- Must be able to obtain a US Government security clearance.
Basic Qualifications for Level 3:
· Bachelor’s degree in Aeronautical/Aerospace Engineering, Mechanical Engineering, Structural Engineering, Physics, or a closely related technical discipline with a minimum of 5 years of relevant industry experience in modeling and simulation, test data reduction, or statistical analysis or a Master’s degree in Aeronautical/Aerospace Engineering, Mechanical Engineering, Structural Engineering, Physics, or a closely related technical discipline with 3 years of of relevant industry experience in modeling and simulation, test data reduction, or statistical analysis or a PHD in Aeronautical/Aerospace Engineering, Mechanical Engineering, Structural Engineering, Physics, or a closely related technical discipline with no experience.
- Proficiency in at least one programming language (C/C++, Python, MATLAB or FORTRAN).
- Strong writing skills for technical documentation and communication
- Must be able to work onsite 4 days a week at our Sunnyvale Site
- Must be a U.S. citizenship
- Must be able to obtain a US Government security clearance.
Preferred Qualifications:
- Masters or PhD in Mechanical or Aeronautical / Aerospace Engineering.
- Knowledge in physics-based modeling and software development.
- Expertise in statistical analysis and uncertainty quantification of large data sets.
- Knowledge in structural dynamics, fluid-structure interaction (FSI), conjugate heat transfer (CHT), multi-phase flows, or combustion processes.
- Test Data Reduction and Analysis.
- Active security clearance.
Skills Required
- Bachelor's degree in Aeronautical/Aerospace Engineering, Mechanical Engineering, Structural Engineering, Physics, or a closely related technical discipline, plus 2 years of relevant industry experience for Level 2
- Master's degree in a relevant technical discipline with no experience for Level 2
- Bachelor's degree in a relevant technical discipline, plus 5 years of relevant industry experience for Level 3
- Master's degree in a relevant technical discipline, plus 3 years of relevant industry experience for Level 3
- PhD in a relevant technical discipline with no experience for Level 3
- Proficiency in at least one of C/C++, Python, MATLAB, or FORTRAN
- Strong technical writing and communication skills
- Ability to work onsite four days per week at the Sunnyvale site
- U.S. citizenship
- Ability to obtain a U.S. government security clearance
- Master's or PhD in Mechanical or Aeronautical/Aerospace Engineering
- Knowledge of physics-based modeling and software development
- Expertise in statistical analysis and uncertainty quantification of large datasets
- Knowledge of structural dynamics, fluid-structure interaction, conjugate heat transfer, multiphase flows, or combustion processes
- Test data reduction and analysis experience
- Active security clearance
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.






