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. Our Aeronautical Systems Sector is seeking a Principal Mechanical Engineer in Oklahoma City, Oklahoma for support on projects associated with the design and development of communication, navigation, radar, avionics, power and/or electrical systems architecture, components, circuits, and products or aircraft maintenance. The employee will research, develop, design, and test electrical components, equipment, systems, and products for defense systems or commercial purposes. You will become part of Northrop Grumman's Lifecycle Sustainment and Modernization Solutions (LSMS). LSMS provides sustainment support for the US Air Force B-1 and B-2 Bombers, E-3 Sentry, Airborne Warning and Control System, and numerous other Government platforms. Our team members complete complex mechanical engineering tasks which include but are not limited to reverse engineering, CAD, structural analysis, manufacturing development, and obsolescence resolution which ensure warfighter supportability. This engineer will support the Lead Engineer in execution of various program activities, to include design development, design/program reviews, requirements management, automated test software development, test execution and witnessing, tool development, hardware selection, and specification development.