Principal Engineer Mechanical (AHT)

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Top Secret TRAVEL: No 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's Space Systems Sector is seeking a Principal Engineer Mechanical for its Aurora, Colorad o work location. Key Responsibilities • Develop, model, and update mechanical designs using CAD tools. • Create, manage, and maintain accurate Bills of Material (BOM) for parts, subassemblies, and top-level assemblies. • Support requirements development by: • Reviewing system and subsystem requirements for mechanical impact. • Deriving and refining mechanical requirements. • Ensuring mechanical designs comply with allocated requirements. • Create and release detailed engineering drawings, including dimensions, tolerances, notes, and callouts, in accordance with applicable standards. • Collaborate with multidisciplinary teams (systems, electrical, manufacturing, supply chain) to ensure design intent, manufacturability, and integration. • Participate in design reviews, drawing checks, and configuration control activities. • Support troubleshooting and resolution of mechanical issues during build, integration, and test. • Document work products in accordance with company procedures and support configuration management of CAD models and drawings.   Basic Qualifications • Bachelor’s degree in Mechanical Engineering or related engineering discipline and 5 years of experience, or Masters degree and 3 years of experience. 4 additional years required in lieu of a degree. • Experience with mechanical design and modeling using CAD software (e.g., Creo, NX, SolidWorks, CATIA). • Experience creating and maintaining BOMs for mechanical assemblies. • Experience generating and updating engineering drawings, including GD&T and tolerance practices. • Strong communication and collaboration skills, with the ability to work in cross-functional teams. • Must have an active U.S. Government Top Secret security clearance at time of application, current and within scope, with the ability to obtain and maintain SCI approval/access.   Preferred Qualifications • Experience in an aerospace, defense, or other highly regulated engineering environment. • Familiarity with configuration management practices for CAD models and drawings. • Experience working to relevant standards (e.g., ASME Y14 series). • Exposure to requirements management tools and model-based engineering practices. • Hands-on experience supporting prototype builds, testing, or production transition. Primary Level Salary Range: $103,600.00 - $155,400.00 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 bonu