Sr Principal Engineer Aeronautical - and Sizing

RELOCATION ASSISTANCE:
Relocation assistance may be available

CLEARANCE REQUIRED FOR START:
Yes

CLEARANCE TYPE:
Secret

TRAVEL:
Yes, 25% of the Time

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’s Aeronautics Systems – Research & Advanced Design (R&AD) transforms breakthrough ideas into mission-ready capabilities through intelligent anticipation. We’re the front-end design engine, defining what comes next. From developing cutting-edge next-generation future aircraft to trailblazing collaborative autonomous platforms, we push the boundaries of technology and forge industry-leading partnerships that set new standards for what’s possible.

Our team owns the full lifecycle of advanced concept creation, from visionary early-stage designs and rapid prototyping to high-impact demonstrations and solving the toughest technical challenges in survivability, autonomy, and battle management. We seek curious, adaptable people who thrive on turning intuition into breakthrough solutions. If you’re driven to invent the future, build what’s next, and shape the landscape of national security, this is where you belong.

• Conduct preliminary design synthesis and analysis of advanced manned and unmanned air vehicles demonstrating technical expertise and knowledge of other related disciplines.
• Develop technical solutions to a wide range of difficult problems in an imaginative, thorough, and practicable manner while also documenting and present results.
• Interact with and brief external customers.
• Support vehicle performance and sizing analysis for vehicle programs from government organizations such as Air Force, Navy, NASA, DARPA and others.
• Support vehicle performance and sizing analysis for vehicle programs from government organizations such as Air Force, Navy, NASA, DARPA and others.
• Provide analysis, guide design teams to execute program goals, support proposal and business development activities.

• Bachelor's degree in a STEM discipline (Science, Technology, Engineering or Math) with 8 years of related engineering experience; OR a Master’s degree in STEM with 6 years of related engineering experience; OR a PhD in STEM with 4 years of related engineering experience.
• Understanding of aircraft performance analysis with general knowledge of related disciplines.
• Understanding of conceptual air vehicle sizing analysis and numerical methods.
• 6+ years of experience with one or more of the following:
  Python, Matlab, C++, Fortran, Linux.
• Familiarity with MIL-STD-3013B.
• Ability and willingness to travel 10% of the time.
• A current active in-scope U.S. Government (DoD) Department of Defense issued Secret or higher security clearance is required to start with the ability to obtain and maintain Special Program Access (SAP/PAR).

• Three plus (9+) years of experience in Vehicle Performance and Sizing and Flight Sciences engineering disciplines.
• Understanding of fundamental aircraft design, aerodynamic and…