David has over 29 years of experience in acoustics, application engineering, product engineering, process engineering, manufacturing, program & product management, quality management, engineering management, and industrial security. David has extensive design experience with low noise, high power analog systems, and digital signal processing. Since transitioning from design engineering to manufacturing, David has accumulated extensive experience and proficiency in working with customers that design high complexity, high reliability products for medical, aerospace & defense, automotive, and industrial (ISO 9001, ISO 13485, AS9100, NADCAP, TS16949, ITAR, and classified environments).