Jack is an expert trouble-shooter specializing in the medical industry. He has been problem-solving in R&D, manufacturing, regulatory and quality areas. Since 1992, he co-founded JD Consulting, a firm specializing in the medical industry including: devices, in vitro diagnostic devices, biologics and drugs.

Jack has expertise in design control, risk management, root cause analysis and CAPA. He teaches a graduate-level medical products life-cycle class at UCI. He is a guest lecturer at USC on quality and regulatory issues. He is a published author and has spoken on Root Cause Analysis and CAPA during FDA-OCRA events. He enjoys sharing his knowledge and public speaking.

He has served as the Membership Chair for the Orange Empire Section of ASQ and was on the executive board of OCRA, a professional organization for quality / regulatory affairs.