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, Space Systems, is seeking a Sr. Principal Designer in our Digital Design & Integration team supporting several locations within Propulsion Systems with home location at the Promontory, UT facility. Role description & Responsibilities: The successful candidate will work under general instruction in the Digital Design and Integration group supporting modeling, drafting, and engineering. The successful candidate will have responsibility for modeling and drafting of mechanical components, electrical harnesses, assemblies and design support in the aerospace industry. Specific roles and responsibilities for this position include the following: Create 3D geometric models Annotate PMI models, and/or create drawings using Siemens NX design tool Create and maintain part, assembly and electrical harness models per NG and program modeling procedures Investigate design solutions Provide drawings for next generation rocket motor design Assist in the definition, development, and qualification of design changes Apply acquired jobs skills and knowledge to achieve targets - technical, cost, and schedule