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Northrop Grumman Systems Corporation

Principal Systems Modeling Simulation Engineer

United States-California-El Segundo Posted today

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LeadershipC++PythonSAPCommunication

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Sponsorship verdict

Posting rules out sponsorship

The posting rules out sponsorship or requires citizenship or security clearance.

  • No government sponsor record hereThis employer posted directly and does not match a government sponsor register.
  • The posting doesn’t mention sponsorshipSilence isn’t a refusal — ask the recruiter before investing much time.
  • No salary bar for this routeH-1B has no fixed salary bar: the employer must pay at least the prevailing wage for the role and area.
  • Security clearance mentionedFrom the posting’s own wording.
  • Confirmed live todayWhen a source last listed this job as open.
Details and sources
No salary bar for this route
H-1B has no fixed salary bar: the employer must pay at least the prevailing wage for the role and area. Cap-subject employers enter a lottery weighted by wage level. Source: https://www.federalregister.gov/documents/2025/12/29/2025-23853/weighted-selection-process-for-registrants-and-petitioners-seeking-to-file-cap-subject-h-1b, rules effective 2026-02-27.

US H-1B: cap-subject employers enter a lottery weighted by wage level — Level I gets 1 entry, Level IV gets 4 (DHS projected selection odds ≈15% at Level I to ≈61% at Level IV). Universities and non-profit research employers are cap-exempt. The $100,000 fee for new petitions from abroad is currently blocked by a court order (appeal pending).

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Before you apply

Requirement gap

The posting mentions a security clearance — usually restricted to citizens of that country.

Sponsorship unknown

No register record and no sponsorship wording in the posting. Worth asking the employer before investing significant time.

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About the role

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 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

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