Sr. Principal Aeronautical Engineer–Subsystem Design 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 Aeronautics Systems is looking to add a Sr. Principal Aeronautical Engineer – Subsystem Design Engineer to join our team in El Segundo or Palmdale, CA . The candidate should be a self-starter with familiarity working in an Integrated Product Team construct. Key Responsibilities: Design and develop subsystem components (avionics, control surfaces, propulsion interfaces, environmental systems) meeting performance, weight, and reliability requirements. Translate system-level requirements into detailed subsystem specifications, interfaces, and engineering drawings. Perform trade studies, engineering analyses, and simulations (stress, aeroelasticity, thermal, vibration) to validate subsystem concepts and support design decisions. Create and maintain technical documentation, including schematics, bills of materials, test plans, and verification matrices. Support integration and interface activities with other engineering disciplines to ensure subsystem compatibility and compliance. Plan, execute, and analyze subsystem-level tests (bench, hardware-in-the-loop, environmental) and resolve design deficiencies through corrective actions. Contribute to configuration management, design reviews, risk assessments, and continuous improvement activities to ensure producible, maintainable subsystem designs. The selected candidate will be required to work full-time, on-site at our facility. There is no remote / hybrid / telework available for this position. Travel up to 25% may be required. Basic Qualifications (Level 4): Bachelor’s Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline and 8 years of related engineering experience; OR a Master’s degree in a STEM discipline and 6 years of related engineering experience; OR a PhD in a STEM discipline and 4 years of related engineering experience. Proficiency with CAD and drafting tools (e.g., CATIA, NX, SolidWorks) and creation of engineering drawings and BOMs. Experience of requirements development an…