Apply broad technical knowledge of electronic components, and circuitry for use in electronic equipment and devices, including but not limited to DC circuits, AC to DC converters, power factor correction, high power semiconductors, digital and analog loop stability, magnetic design, worse case stress analysis, digital hardware, firmware, test and measurement systems, and electrical/safety regulatory compliance. Diagnose and solve issues of diverse scope with design, field performance, root cause/failure analysis, reliability and manufacturing test yields of existing power supply products using formal investigation methods and corrective actions.