Basic Qualifications: Principal Structural Engineer: Bachelor's degree in a Science, Technology, Engineering or Mathematics (STEM) discipline from an accredited university with a minimum of 5 years' experience to include a background in aerospace structural analysis; or Master's degree in a Science, Technology, Engineering or Mathematics (STEM) discipline from an accredited university and 3 years' experience to include a background in aerospace structural analysis. Principal Engineer: Bachelor's degree in a Science, Technology, Engineering or Mathematics (STEM) discipline with a minimum of 8 years' experience to include a background in aerospace structural analysis or Master's Degree in a Science, Technology, Engineering or Mathematics (STEM) discipline from an accredited university with a minimum of 6 years' experience to include a background in aerospace structural analysis.