Principal Systems Modeling Simulation Engineer

Posted Yesterday
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El Segundo, CA, USA
In-Office
114K-171K Annually
Senior level
Aerospace • Logistics • Security • Software • Cybersecurity
The Role
Develop and implement high-fidelity system performance, threat, and command-and-control models for real-time and constructive simulations. Create mathematical algorithms for sensors and system modes, analyze radar and electronics performance, and model military platforms and threats. Collaborate with stakeholders, communicate technical results, lead peer reviews, and support design, integration, testing, flight-test verification, and sustainment. The role requires an active Secret clearance and may involve advanced modeling of radar, missiles, air defense, and aerospace systems.
Summary Generated by Built In
RELOCATION ASSISTANCE: Relocation assistance may be available

CLEARANCE REQUIRED FOR START: Yes

CLEARANCE TYPE: Secret

TRAVEL: Yes, 10% of the TimeDescription

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 Aeronautics Systems is looking to add a Principal Systems Modeling Simulation Engineer to join our team. The position is located on site in El Segundo, California. This position will be in our Systems Engineering organization.


In this role, your primary roles and responsibilities will include:


The selected candidate will be responsible for development and implementation of new and existing high fidelity, system performance models, threat models, and command & control models.


Essential Functions:

  • Development of mathematical algorithms for mode/sensor implementation
  • Develop software to model behavior of systems in real-time and constructive simulations of sensors and other platforms.
  • Solicit input from various stakeholders, synthesize data, and communicate results to various levels of leadership within the organization.
  • Technical team leadership participating in technical peer reviews throughout the product lifecycle of design, development, integration and test, flight test requirements verification, and sustainment.

Basic Qualifications:

  • Bachelor’s of Science Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline from an accredited university and 5 years of relevant experience, or 3 years of experience and a Master’s degree, or 0 years of experience and a PhD.
  • Experience with one or more of the following:
    • Signals processing
    • Radar systems
    • Electronics systems performance analysis, test or integration
    • MATLAB, C/C++, Python or related languages
    • Research, Analysis, and Creating Assessments of Foreign Threats to US Military Operations
    • Analysis at the Survivability, Lethality, Vulnerability, Engagement, and/or Mission Level
    • Vehicle performance analysis
    • Air vehicle survivability analysis
    • Modeling and Simulation of Radars, Missiles, Integrated Air Defense Systems (IADS), Air and/or Space platforms
    • Electronic Attack (EA), Electronic Protection (EP), Electronic Countermeasures
    • Red and/or Blue CONOPs and TTPs
  • An active in-scope U.S. Government DoD Secret security clearance or higher is required to start.
  • Ability to obtain and maintain a Top-Secret clearance with Special Program Access (PAR/SAP)

Preferred Qualifications:

  • Ability to work independently and identify solutions to complex problems.
  • Ability to work with a team in a rapid prototyping environment.
  • Demonstrated experience with Air-to-Air and/or Air-to-Ground modes
  • Demonstrated mathematical problem-solving ability and data analysis experience
  • Demonstrated interpersonal communication, presentation skills, verbal and written communication skills
  • Work experience with one of the following areas related to radar systems: search or track, surveillance, reconnaissance, electronic protection, ID, or adaptive technique
  • Customer focus and collaboration skills
  • Strong desire to learn, take initiative and contribute within a team-oriented environment
  • Demonstrated team leadership experience
  • An understanding of the physical limitations of implementing complex algorithms in real hardware

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.

Skills Required

  • Bachelor’s degree in a STEM discipline and 5 years of relevant experience; or a master’s degree and 3 years of experience; or a PhD with no experience required.
  • Experience with signals processing, radar systems, electronics systems performance analysis, test or integration, MATLAB, C, C++, Python, threat analysis, survivability or lethality analysis, vehicle performance, or related modeling and simulation.
  • Active, in-scope U.S. Government DoD Secret security clearance or higher required to start.
  • Ability to obtain and maintain a Top Secret clearance with Special Program Access.
  • Ability to work independently and solve complex problems.
  • Experience working in rapid prototyping environments and team settings.
  • Experience with air-to-air and/or air-to-ground modes.
  • Mathematical problem-solving and data analysis experience.
  • Interpersonal communication, presentation, verbal, and written communication skills.
  • Experience with radar search, tracking, surveillance, reconnaissance, electronic protection, identification, or adaptive techniques.
  • Team leadership experience.
  • Understanding of physical limitations when implementing complex algorithms in real hardware.

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.

  • 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.
  • 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.
  • 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

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The Company
HQ: Charlotte, North Carolina
85,636 Employees

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.

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