Basic Qualifications for Systems Engineer - Level 3: Bachelor''s degree in STEM (Science, Technology, Engineering, Math) discipline with 5+ years of engineering experience OR, Master''s degree in STEM (Science, Technology, Engineering, Math) discipline with 3 years of experience OR, PhD degree in a STEM discipline with 1 year of experience. Basic Qualifications for Systems Engineer - Level 2: Bachelor''s degree in STEM (Science, Technology, Engineering, Math) discipline with 2+ years of engineering experience OR, Master''s degree in STEM (Science, Technology, Engineering, Math) discipline.