Keywords: test engineer, environmental testing, vibration testing, electrodynamic shaker, sine vibration, random vibration, shock testing, TVAC, thermal vacuum chamber, vacuum testing, thermal cycling, acoustic testing, reverberant acoustic chamber, direct field acoustic testing, DAQ, data acquisition, accelerometers, thermocouples, microphones, strain gauges, instrumentation, calibration, test setup, test execution, test operations, MIL‑STD‑810, NASA GEVS, ECSS, aerospace testing, hardware qualification testing, acceptance testing, test reports, MATLAB, Python, LabVIEW, engineering analysis, contamination control, vacuum systems, environmental simulation. Knowledge of vibration test systems, thermal vacuum chamber operation, acoustic test methods, DAQ systems, and data analysis tools (e.g., MATLAB, Python, LabVIEW).