RELOCATION ASSISTANCE: Relocation assistance may be available 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. The Mechanical Engineering Organization seeks a Sr. Principal Engineer Modeling and Simulation at the Chandler, AZ facility. **Essential Functions – Dynamic Environments:** + Develop environments such as random vibration, shock, and acoustics related to launch vehicle operations + Perform analyses using appropriate classical and computer aided techniques and prepare results for oral presentations, and written reports. + Perform random vibration and/or shock analysis + Build finite element and/or statistical energy analysis models for use in dynamic simulations + Generate dynamics test requirements and overall qualification test approach for avionics components and secondary structures + Execute vibration and shock testing from start-to-finish: pre-test analysis, sensor selection and installation, testing, data analysis, model correlation, and report generation) + Analyze acceleration and pressure time history data from ground test and flight for use in vibroacoustic analyses + Provide dynamic design guidelines and requirements to mechanical designers in early phases of hardware development **Basic Qualifications:** + 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 related engineering experience + Ability to obtain a DoD Secret security clearance + In-depth knowledge of vibration theory, structural dynamics, rigid body dynamics, and finite element methods **Preferred Qualifications:** + Active DoD Secret security clearance, or higher + Bachelors or Master's in Mechanical or Aerospace Engineering + Proficiency in FEA software, preferably NASTRAN , ABAQUS, or Femap + Proficiency in MATLAB or Python + Ability to apply fundamental analytical techniques and prepare written analyses + Previous experience with launch vehicle coupled loads analysis (CLA) and Craig-Bampton models + Experience with modal test, modal analysis, or explicit dynamics/FEA + Familiarity with Linux Primary Level Salary Range: $118,600.00 - $178,000.00 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 bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business. The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates. Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit http://www.northropgrumman.com/EEO. U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.