Northrop Grumman

Principal / Senior Principal Engineer - Modeling Simulation & Analysis

Northrop Grumman$114K — $171K *
Aerospace & Defense
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor’s or Master’s degree in a STEM discipline with 5-8 years of relevant experience; or PhD with 1-4 years of relevant experience.
  • Proven experience in modeling, simulation, and analysis of complex systems.
  • Expertise in tools like MATLAB/Simulink and Python for modeling and analysis.
  • Experience in processing sensor or navigation data sets, such as IMU logs or flight test data.
  • Excellent problem-solving and analytical skills to interpret complex datasets and derive insights.
  • Strong communication skills to present technical findings to diverse audiences.
  • Collaborative mindset with a focus on cross-functional teamwork.

Responsibilities

  • Develop and maintain physics-based models for inertial navigation systems and sensors.
  • Conduct Monte Carlo, sensitivity, and trade-off analyses to evaluate system performance.
  • Analyze various test data to validate models and enhance performance accuracy.
  • Support requirements decomposition and provide performance predictions for navigation metrics.
  • Create simulation frameworks and toolchains for use across different programs.
  • Collaborate with engineering teams to integrate models into HIL and SIL testing environments.
  • Guide test planning with model-informed test cases and investigate anomalies for design improvement.

Benefits

  • Relocation assistance may be available.
  • Health insurance coverage including life and disability insurance.
  • Savings plan options and Company paid holidays.
  • Paid time off (PTO) for vacation and personal business.
  • Opportunities for overtime and discretionary bonuses based on individual and company performance.
Full Job Description
RELOCATION ASSISTANCE: Relocation assistance may be available

CLEARANCE REQUIRED FOR START: Yes

CLEARANCE TYPE: Secret

TRAVEL: Yes, 10% of the TimeDescription

The Engineering & Sciences organization at Northrop Grumman Mission Systems (NGMS) is seeking a Principal or Senior Principal Modeling, Simulation & Analysis (MS&A) Engineer to join our team based in Woodland Hills, CA. The ideal candidate will have a strong background in physics-based modeling, simulation and data analysis, with extensive experience supporting inertial navigation products through design, verification, and performance characterization. This role requires the ability to develop and maintain high fidelity models, analyze complex multi domain data sets, and collaborate across disciplines to ensure robust system performance from concept through production.

What You’ll Get to Do:

  • Develop and maintain physics-based models and simulations of inertial navigation systems (INS), including sensors (e.g., gyros, accelerometers), error sources, and environmental effects.
  • Perform Monte Carlo analyses, sensitivity studies, and trade off analyses to assess system performance, robustness, and margins against requirements.
  • Analyze lab, flight, and field test data to validate models, quantify performance, and identify discrepancies between predicted and observed behavior.
  • Support requirements decomposition by providing model-based performance predictions, error budgets, and allocation rationale for key inertial navigation metrics.
  • Generate and maintain simulation frameworks and toolchains (e.g., MATLAB/Simulink, Python, C/C++ models) that can be reused across programs and product lines.
  • Collaborate closely with systems, hardware, and software engineering teams to integrate models into hardware in the loop (HIL) and software in the loop (SIL) environments, enabling early verification of navigation algorithms and interfaces.
  • Contribute to test planning by defining model informed test cases, corner conditions, and stress scenarios to verify navigation performance and robustness.
  • Analyze test and qualification results, perform root cause investigations on anomalies, and provide data driven recommendations for design updates or calibration strategies.
  • Prepare technical documentation and artifacts including modeling assumptions, validation reports, analysis briefs, and executive level presentations summarizing navigation performance, risks, and mitigation options.
  • Provide technical guidance and mentorship to junior engineers in modeling, simulation, and data analysis methods; promote best practices and knowledge sharing across disciplines.
  • Drive continuous improvement in MS&A processes, tools, and standards for inertial navigation products, including model re use, configuration management, and lessons learned documentation.

This position may be filled as a Principal MS&A Engineer or Senior Principal MS&A Engineer.

Basic Qualifications for Principal MS&A Engineer:

  • Bachelor’s degree in a STEM discipline plus 5 years of relevant experience; Master’s degree in a STEM discipline plus 3 years of relevant experience; PhD in a STEM discipline plus 1 year of relevant experience.
  • Demonstrated experience in modeling, simulation, and analysis for complex systems.
  • Proficiency with modeling and analysis tools such as MATLAB/Simulink and Python (or comparable environments).
  • Experience processing and analyzing sensor or navigation data sets (e.g., IMU logs, flight test data, lab data).
  • Strong analytical and problem-solving skills; able to interpret complex data and generate actionable insights for design decisions and risk reduction.
  • Excellent written and verbal communication skills, capable of clearly presenting technical findings to both technical and non-technical audiences.
  • Collaborative team player who actively contributes to cross functional projects.
  • Meticulous attention to detail with a commitment to high quality, reliable work.
  • Agile and adaptable, thriving in fast changing, fast paced environments.
  • U.S. Citizenship required.
  • A current/active U.S. Government Secret clearance is required.
  • Availability to work onsite full-time in Woodland Hills, California.

Basic Qualifications for Senior Principal MS&A Engineer:

  • Bachelor’s degree in a STEM discipline plus 8 years of relevant experience; Master’s degree in a STEM discipline plus 6 years of relevant experience; PhD in a STEM discipline plus 4 years of relevant experience.
  • Demonstrated experience in modeling, simulation, and analysis for complex systems.
  • Proficiency with modeling and analysis tools such as MATLAB/Simulink and Python (or comparable environments).
  • Experience processing and analyzing sensor or navigation data sets (e.g., IMU logs, flight test data, lab data).
  • Strong analytical and problem-solving skills; able to interpret complex data and generate actionable insights for design decisions and risk reduction.
  • Excellent written and verbal communication skills, capable of clearly presenting technical findings to both technical and non-technical audiences.
  • Collaborative team player who actively contributes to cross functional projects.
  • Meticulous attention to detail with a commitment to high quality, reliable work.
  • Agile and adaptable, thriving in fast changing, fast paced environments.
  • U.S. Citizenship required.
  • A current/active U.S. Government Secret clearance is required.
  • Availability to work onsite full-time in Woodland Hills, California.

Preferred Qualifications:

  • Master’s degree or PhD in a STEM field, particularly in Aerospace Engineering, Electrical Engineering, Physics, Applied Mathematics, or related technical management.
  • Experience with inertial navigation systems (INS), IMU modeling, navigation algorithms, or closely related estimation or control systems.
  • Experience with Guidance, Navigation & Control (GNC), Kalman filtering, state estimation, or sensor fusion algorithms.
  • Experience integrating, validating, or troubleshooting software and simulation models within hardware environments (HIL, SIL, laboratory integration, or equivalent).
  • Experience with C/C++ or Python to support algorithm development or system integration.
  • Proven track record supporting program milestones such as SRR, SFR, PDR, and CDR, with specific contributions from modeling and analysis.

Primary Level Salary Range: $114,000.00 - $171,000.00

Secondary Level Salary Range: $142,200.00 - $213,400.00

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.

About Northrop Grumman

Northrop Grumman is a security company that provides systems, products, and solutions in aerospace, electronics, information systems, shipbuilding, and technical services to government and commercial customers. They design, develop, and build everything from aircraft and spacecraft to cyber security systems. The company is involved in a wide range of defense and technology projects, including the development of aircraft, space systems, cybersecurity solutions, and advanced electronics.

Northrop Grumman Careers

Join the elite team at Northrop Grumman, a leading global security company providing innovative systems, products, and solutions in autonomous systems, cyber, C4ISR, space, strike, and logistics and modernization to customers worldwide. There has never been a more exciting time to advance your career with Northrop Grumman.

Work You’ll Do

At Northrop Grumman, your work will redefine the edges of technology and create a safer future. Our culture thrives on intellectual curiosity, cognitive diversity, and bringing your whole self to work. Our team is at the forefront of innovation, collaborating to make the impossible, possible.

Explore Job Opportunities and Growth

Whether you’re looking for an internship, an entry-level position, or a spot for seasoned professionals, Northrop Grumman offers a variety of career paths that encourage growth and development. Explore job opportunities that elevate your skills, and push your career to the next level.

Join Our Diverse and Inclusive Team

Diversity and inclusion are the foundations of our culture. Northrop Grumman is committed to building a diverse team that fosters an inclusive environment, where every team member is valued for their unique perspectives and contributions. We believe that diversity fuels innovation.

Professional Development and Benefits

Northrop Grumman is dedicated to your professional and personal growth. We offer unparalleled benefits, including comprehensive health coverage, generous time off, and family care resources. Additionally, we provide extensive leadership and diversity training to help you craft your career path.

Networking and Leadership

Enhance your career through our robust networking opportunities. Connect with leaders and peers within Northrop Grumman through various events, mentorship programs, and professional groups. Our leadership is deeply invested in nurturing talent and guiding team members through their career journey.

Innovation in Technology

Drive technological breakthroughs with a company at the cutting edge of innovation. Northrop Grumman is a place where you can work on projects that push the boundaries of what is possible.

How to Apply

Ready to join our team? Check out the open positions on our Careers page. Tailor your resume to highlight your relevant skills and experiences. Prepare for your interview with us by researching our projects and understanding our company’s mission and values.

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Northrop Grumman Jobs

Discover the impact you can make with a career at Northrop Grumman. We are actively hiring and looking for passionate, curious, and solution-driven team players. Search Northrop Grumman jobs today and find where your expertise is needed most. Join Northrop Grumman, and be part of a team that is dedicated to making a difference, not only within the company but in the world at large. Your journey to building a rewarding career starts here.
Learn more about Northrop Grumman
Size
88,000 employees
Market Cap
$82.7 billion
Industry
Net Income
$3.1 billion
Founded
1939
5 Year Trend
+7.6%
Revenue
$36.7 billion
NASDAQ

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