Principal / Senior Principal Reliability Engineer
Northrop Grumman Systems
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Los Angeles, CA · Posted November 4, 2026
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About the job
RELOCATION ASSISTANCE: Relocation assistance may be available
CLEARANCE REQUIRED FOR START: No
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!
Northrop Grumman is seeking a Principal Reliability Engineer or Senior Principal Reliability Engineer to work with our Specialty Engineering Team out of Woodland Hills, CA. 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. This is an exciting, challenging and specialized role for a talented, energized and innovative individual who wants to pursue growth in Reliability, Maintainability, and Testability Engineering. This is fully onsite position located in Woodland Hills, CA working a 9/80 schedule.
What You’ll Get to Do:
· Perform Reliability and Maintainability allocations and predictions for avionics and navigation systems.
· Create reliability block diagrams/models that reflect the functions, failure modes, and characteristics of the system/unit being analyzed
· Conduct Failure Modes Effects Analyses (FMEA), Failure Modes Effects Criticality Analyses (FMECA), and Testability analyses.
· Support Failure Reporting Analysis and Corrective Action System (FRACAS) as needed.
· Support Built-In Test BIT Design Verification Testing (BIT Demos).
· Utilize knowledge of documents such as MIL-HDBK-338, MIL-HDBK-472, MIL-STD-2155, ANSI/VITA 51.1 and MIL-HDBK-217 F(N2), to perform engineering analyses and make recommendations to design teams.
· Collaborate with Integrated Product Teams (IPT), program management, customers, and suppliers for the Reliability, Maintainability and Testability (RMT) aspects of assigned systems.
· Support identifying, planning and quoting the RMT tasks for proposals.
This position may be filled as Principal Reliability Engineer or Senior Principal Reliability Engineer .
Basic Qualifications Principal Reliability Engineer
· Bachelor’s in Electrical Engineering (or related STEM Discipline) with a minimum of 5 years of relevant experience; Master’s with 3 years of relevant experience; PhD with 1 year relevant experience.
· Demonstrated experience in Reliability, Maintainability, and Testability disciplines.
· Ability to understand and interpret electrical schematics/drawings, functional block diagrams, and ability to accurately create reliability block diagrams
· Experience understanding component failure modes/mechanisms and developing a Piece-Part FMEA/FMECA.
· Clear and effective verbal and written communication skills to be able to interact with team members, peers and leadership within NGMS and the customer community.
· Innovative mindset with focus on process improvement.
· U.S. Citizenship is required.
· The ability to obtain and maintain a U.S Government Secret Security Clearance is required within a time frame set forth by management.
Basic Qualifications Senior Principal Reliability Engineer:
· Bachelor’s in Electrical Engineering (or related STEM Discipline) with a minimum of 8 years of relevant experience; Master’s with 6 years of relevant experience; PhD with 4 years relevant experience.
· Demonstrated experience in Reliability, Maintainability, and Testability disciplines.
· Ability to understand and interpret electrical schematics/drawings, functional block diagrams, and ability to accurately create reliability block diagrams
· Experience understanding component failure modes/mechanisms and developing a Piece-Part FMEA/FMECA.
· Clear and effective verbal and written communication skills to be able to interact with team members, peers and leadership within NGMS and the customer community.
· Innovative mindset with focus on process improvement.
· U.S. Citizenship is required.
· The ability to obtain and maintain a U.S Government Secret Security Clearance is required within a time frame set forth by management.
Preferred Qualifications:
· Experience with hands-on RMT analysis and modeling skills for electronic and non-electronic systems, including experience with Reliability Analysis Software and modeling tools (PTC Windchill Quality Solutions preferred).
· Demonstrated experience within aerospace or defense industry
· Experience performing Useful Life Analysis and Operational Service Life Analysis.
· Experience planning and supporting Highly Accelerated Life Testing (HALT).
· Familiarity with Fault Tree Analysis.
· Familiarity with additional specifications such as MIL-HDBK-338, MIL-HDBK-472, MIL-STD-2155, ANSI/VITA 51.1 and MIL-HDBK-217 F(N2),
· Experience with DO-254 Hardware Certification Process.
· ASQ Certified Reliability Engineer.
· Possess active U.S. Government Secret Security Clearance.
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 http://www.northropgrumman.com/EEO. U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.