Sr. Principal Mechanical Engineer
Northrop Grumman
108k - 162k USD/year
Office
FLAP01, United States
Full 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.Northrop Grumman is seeking a Sr. Principal Mechanical Engineer to join our Mission Systems sector site in Apopka, FL. This position is to lead the structural and thermal analysis of laser and optical systems for handheld, ground, and airborne products.
What You'll Get To Do:
Candidate will be responsible for performing hand calculations, in running Structural and/or Thermal analysis using ANSYS. For structural analysis candidate will be responsible for fatigue, modal, shock, and vibration analysis; For thermal analysis candidate will perform static and transient analysis to determine thermal stresses, deformation using all three modes of heat transfer. The Sr. Principal Mechanical Engineer will also prepare presentations and clearly present the data to stakeholders. Will work within a multi-discipline team to support root cause corrective action (RCCA) analysis and generate engineering change notices (ECNs), update models and drawings, and release the appropriate documentation using configuration management software.
Roles & Responsibilities:
- Running Structural FEA/Simulations using ANSYS and/or Thermal FEA/Simulations using ANSYS and/or IcePak
- Creating or modifying mechanical models using 3D CAD software such as CREO and/or NX.
- Performing structural and/or thermal hand calculations using Excel, Matlab, or Python
- Generating reports and summarizing simulations/analysis results and presenting to stakeholders in a clear and concise manner
- Based on results, recommending generation of Problem Reports, Change Notifications, and/or Engineering Change Notifications and processing them through the Configuration Management database
Basic Qualifications:
- B.S. Degree in Mechanical Engineering or related STEM Degree and 8 years of related, professional experience; or a Master's Degree in Mechanical Engineering or related STEM Degree with 6 years of related/ professional experience
- Experienced in the use of 3D CAD
- Proficiency to do Structural and/or Thermal Finite Element Analysis in ANSYS
- Experience leading mechanical design activities
- US Citizenship is required
- Must be able to obtain a DoD Secret Clearance. Must be able to obtain this level of clearance for continued employment.
Preferred Qualifications:
- Active Secret Clearance
- Proficiency in optical-mechanical analysis
- Knowledgeable in the use of CREO and/or NX CAD experience
- Experience in Icepak and/or Thermal Desktop
- Knowledge of analysis required for Space Systems
- Familiarity with ANSI Y14.5M GD&T specifications
- Experience with military specifications
- Experienced in writing and manipulating MATLAB and/or Python scripts
Sr. Principal Mechanical Engineer
Office
FLAP01, United States
Full Time
108k - 162k USD/year
September 8, 2025