Northrop Grumman Aeronautics Systems has an opening for Principal / Senior Principal Systems Engineer to join the team of qualified individuals on our Research and Advanced Design organization. This role is located onsite in Redondo Beach, CA.
In this role, the successful candidate will lead system-level architecture definition and systems engineering activities for advanced aeronautics programs in the R&AD organization. The role requires strong general systems engineering skills including requirements management, risk management, architecture development, and hands-on experience with Model-Based Systems Engineering (MBSE) and SysML. The Principal/Sr. Principal Systems Engineer will define and evolve architectures for high-performance aircraft and/or unmanned systems, guide trade studies, and mentor multidisciplinary teams through concept, design, integration, and V&V phases.
Key Responsibilities:
- Performs technical planning, system integration, verification and validation, cost and risk, and supportability and effectiveness analyses for total systems.
- Analyses are performed at all levels of total system product to include: concept, design, fabrication, test, installation, operation, maintenance and disposal.
- Ensures the logical and systematic conversion of customer or product requirements into total systems solutions that acknowledge technical, schedule, and cost constraints.
- Performs functional analysis, timeline analysis, detailed trade studies, requirements allocation and interface definition studies to translate customer requirements into hardware and software specifications.
We offer flexible work arrangements, 9/80 work schedule with every other Friday off, phenomenal learning opportunities, exposure to a wide variety of projects and customers, and a very friendly team environment. We are looking for self-motivated, proactive, and goal-oriented people to help us grow our services and become even better at what we do.
Basic Qualifications (Principal):
Must have a Bachelor of Science degree in a Science, Technology, Engineering, or Math (STEM) discipline AND 5 years of related professional/military experience OR a Master of Science degree in a STEM discipline AND 3 years of related professional/military experience, OR a STEM Ph.D. AND 1 years of related professional/military experience
Must have an active US Government Secret (or higher) clearance (with a background investigation within the past 6 years or enrolled into Continuous Evaluation)
Must have the ability to obtain and maintain Special Access Program (SAP) clearance, within a reasonable amount of time as determined by business needs.
Must have experience with Model-Based Systems Engineering (MBSE) and SysML—creating and maintaining SysML models and using MBSE to support requirements, design, and verification.
Must have experience with requirements management (tools such as DOORS, Polarion, or equivalent), including requirements decomposition and traceability.
Must have experience in risk management methods (e.g., FMEA, FTA, risk registers) and applying risk-informed design decisions.
Must have experience developing system architectures, interface control documents (ICDs), and performing system-level trade studies.
Must have familiarity with systems engineering lifecycle processes (V-model) and standards (e.g., INCOSE SE Handbook).
Must have excellent communication, leadership, and stakeholder management skills; ability to present complex technical material clearly.
Basic Qualifications (Sr. Principal):
Must have a Bachelor of Science degree in a Science, Technology, Engineering, or Math (STEM) discipline AND 8 years of related professional/military experience OR a Master of Science degree in a STEM discipline AND 6 years of related professional/military experience, OR a STEM Ph.D. AND 4 years of related professional/military experience
Must have an active US Government Secret (or higher) clearance (with a background investigation within the past 6 years or enrolled into Continuous Evaluation)
Must have the ability to obtain and maintain Special Access Program (SAP) clearance, within a reasonable amount of time as determined by business needs.
Must have experience with Model-Based Systems Engineering (MBSE) and SysML—creating and maintaining SysML models and using MBSE to support requirements, design, and verification.
Must have experience with requirements management (tools such as DOORS, Polarion, or equivalent), including requirements decomposition and traceability.
Must have experience in risk management methods (e.g., FMEA, FTA, risk registers) and applying risk-informed design decisions.
Must have experience developing system architectures, interface control documents (ICDs), and performing system-level trade studies.
Must have familiarity with systems engineering lifecycle processes (V-model) and standards (e.g., INCOSE SE Handbook).
Must have excellent communication, leadership, and stakeholder management skills; ability to present complex technical material clearly.
Preferred Qualifications:
- Master’s degree preferred in Aerospace, Systems, Electrical, Mechanical Engineering, or related field
- Experience with SysML tools such as Cameo Systems Modeler, MagicDraw, or Enterprise Architect.
- Knowledge of aerospace architecture frameworks (DoDAF/UPDM) and model interchange standards (AP233, OSLC).
- Familiarity with MATLAB/Simulink, model-based verification, or digital thread/MBSE toolchains.
- Experience with avionics, guidance & navigation, flight control systems, or propulsion integration.
- Prior experience in R&AD, prototype development, rapid iteration, or technology maturation programs.
Skills Required
- Bachelor's in STEM + 5 years OR Master's in STEM + 3 years OR STEM Ph.D. + 1 year (Principal)
- Bachelor's in STEM + 8 years OR Master's in STEM + 6 years OR STEM Ph.D. + 4 years (Sr. Principal)
- Active US Government Secret (or higher) clearance with recent background investigation or CE enrollment
- Ability to obtain and maintain Special Access Program (SAP) clearance
- Experience with Model-Based Systems Engineering (MBSE) and SysML, creating and maintaining SysML models
- Experience with requirements management tools (e.g., DOORS, Polarion, or equivalent) including decomposition and traceability
- Experience in risk management methods (e.g., FMEA, FTA, risk registers) and applying risk-informed design decisions
- Experience developing system architectures, interface control documents (ICDs), and performing system-level trade studies
- Familiarity with systems engineering lifecycle processes (V-model) and standards (INCOSE SE Handbook)
- Excellent communication, leadership, and stakeholder management skills; ability to present complex technical material clearly
- Master's degree in Aerospace, Systems, Electrical, Mechanical Engineering, or related field
- Experience with SysML tools such as Cameo Systems Modeler, MagicDraw, or Enterprise Architect
- Knowledge of aerospace architecture frameworks (DoDAF/UPDM) and model interchange standards (AP233, OSLC)
- Familiarity with MATLAB/Simulink, model-based verification, or digital thread/MBSE toolchains
- Experience with avionics, guidance & navigation, flight control systems, or propulsion integration
- Prior experience in R&AD, prototype development, rapid iteration, or technology maturation programs
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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Retirement Support — 401(k) matching is considered strong, with additional defined-benefit coverage for certain cohorts and options like catch-up contributions. Retirement programs are repeatedly highlighted as a core strength of the total rewards.
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Leave & Time Off Breadth — PTO, company-paid holidays, and compressed work schedules (such as 9/80) provide meaningful time away and flexibility. These scheduling options are cited as a major quality-of-life benefit across many locations.
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Parental & Family Support — Paid parental leave alongside caregiver leave, adoption assistance, and back-up care supports a range of family needs. These programs have been expanded recently, signaling continued investment in family support.
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.






