Principal / Sr. Principal Modeling Simulation & Analysis Systems Engineer

RELOCATION ASSISTANCE: Relocation assistance may be 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. Northrop Grumman Mission Systems is a trusted provider of mission-enabling solutions for global security. Our Engineering and Sciences (E&S) organization pushes the boundaries of innovation, redefines engineering capabilities, and drives advances in various sciences. Our team is chartered with providing the skills, innovative technologies to develop, design, produce and sustain optimized product lines across the sector while providing a decisive advantage to the warfighter. Come be a part of our mission! We are looking for you to join our team as a Modeling, Simulation & Analysis (MS&A) Systems Engineer based out of Woodland Hills, CA. As a Modeling, Simulation & Analysis (MS&A) Systems Engineer at Northrop Grumman you will have a challenging and rewarding opportunity to be a part of our Enterprise-wide digital transformation. Through the use of Model-based Engineering, DevSecOps and Agile practices we continue to evolve how we deliver critical national defense products and capabilities for the warfighter. Our success is grounded in our ability to embrace change, move quickly and continuously drive innovation. The successful candidate will be collaborative, open, transparent, and team-oriented with a focus on team empowerment & shared responsibility, flexibility, continuous learning, and a culture of automation. What You’ll get to Do: In this role, you will work with Chief Mission Architect and peer MS&A Systems Engineers in collaborative small team environments to conduct research and analysis, develop models and simulations, and develop and implement algorithms. Roles & Responsibilities: Design, develop, and continuously update complex Simulink models for inertial navigation systems (INS) to reflect the latest hardware, software, and algorithm changes, ensuring model fidelity and traceability. Conduct detailed analysis of system performance using simulation tools (MATLAB/Simulink) to identify potential improvements and verify that all system requirements are met. Develop and implement INS algorithms and integrate them into the Simulink environment, maintaining clear interfaces and version‑controlled libraries. Perform regression testing of updated Simulink models, validate results against flight‑test data, and generate quantitative reports on model accuracy and stability. Analyze simulation data to validate models and algorithms, providing actionable insights into system behavior under a wide range of operating conditions. Collaborate with cross‑functional teams (software, hardware, systems engineering) to embed Simulink models within larger system architectures and support hardware‑in‑the‑loop (HIL) and software‑in‑the‑loop (SIL) testing. Prepare technical documentation, model change logs, and validation reports to communicate findings, methodologies, and recommendations to stakeholders. Stay current with advancements in modeling and simulation technologies (e.g., Simulink 202x, Model‑Based Design, AUTOSAR) and apply best practices to improve existing INS models. Work closely with configuration‑management and version‑control tools (Bitbucket, GitHub, GitLab) to ensure Simulink model revisions are properly tracked, reviewed, and released. This position may be filled as a Principal Modeling, Simulation and Analysis Systems Engineer or a Senior Principal Modeling, Simulation, and Analysis Engineer Basic Qualifications for a Principal Modeling, Simulation and Analysis Systems Engineer: BS degree in a STEM discipline and 5 years of related professional/military experience in Systems Engineering, OR a MS degree and 3 years OR a Ph.D. and 1 year Proven experience in modeling, simulation, and analysis, preferably in the aerospace or defense industry. Proficiency in simulation tools such as MATLAB, Simulink, or similar software. Experience with C/C++ or Python for algorithm development is a plus. Strong analytical and problem-solving skills with the ability to interpret complex data and develop actionable insights. Excellent written and verbal communication skills to effectively convey technical information to non-technical stakeholders. Ability to work collaboratively in a team environment and contribute to cross-functional projects. High level of attention to detail and accuracy in work, with a focus on quality and reliability. Ability to adapt to changing project requirements and work in a fast-paced environment. Active U.S. Government Secret Clearance. Ability to work onsite full-time in Woodland Hills, California. Basic Qualifications for a Senior Principal Modeling, Simulation and Analysis Systems Engineer: BS degree in a STEM discipline and 8 years of related professional/military experience in Systems Engineering, OR a MS degree and 6 years OR a Ph.D. and 4 years Proven experience in modeling, simulation, and analysis, preferably in the aerospace or defense industry. Proficiency in simulation tools such as MATLAB, Simulink, or similar software. Experience with C/C++ or Python for algorithm development is a plus. Strong analytical and problem-solving skills with the ability to interpret complex data and develop actionable insights. Excellent written and verbal communication skills to effectively convey technical information to non-technical stakeholders. Ability to work collaboratively in a team environment and contribute to cross-functional projects. High level of attention to detail and accuracy in work, with a focus on quality and reliability. Ability to adapt to changing project requirements and work in a fast-paced environment. Active U.S. Government Secret Clearance. Ability to work onsite full-time in Woodland Hills, California. Preferred Qualifications: Experience in inertial navigation systems Familiarity with AGILE, MBSE, and/or system architecture. Experience with version control tools (Bitbucket, GitHub, Gitlab, etc.) 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. 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 U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions. Existing Applicants: Need to update your contact information or email address? Once logged in, click on Candidate Home in the upper right corner and scroll to the bottom of that screen to see buttons for: Update Contact information to update your legal name, address, and phone number Edit Account Settings to edit your email address We are a pioneering company. With careers across all areas: air, cyber, land, sea and space – our 90,000 employees work as one to defend and define the future. Northrop Grumman careers and internships are as varied as your interests, with a lifetime of potential that will give you every opportunity to do your best work. Working together with people from many backgrounds, personal passions and disciplines, we share a drive to push the boundaries of science, technology and engineering to meet the ever evolving needs of our customers worldwide.