This expert witness is a chemical engineer and naval operations specialist with more than 25 years of professional experience in chemical engineering, nuclear materials management, and submarine and marine operations. His work includes analysis and evaluation of chemical engineering processes, materials behavior, chemical exposure issues, and safety considerations within industrial and operational environments. In an expert capacity, he has provided consultations and deposition testimony for more than 10 years in matters involving chemical engineering and chemical exposure analysis. Professional credentials include a Doctor of Philosophy (Ph.D.) in Chemical Engineering, a Master of Engineering in Chemical Engineering, and licensure as a Professional Engineer (P.E.). His experience includes work related to management of nuclear materials and spent nuclear fuel, environmental restoration projects at nuclear facilities, and operations readiness reviews and quality assurance for technical systems and facilities. His background also includes extensive naval and underwater operational experience, having served as a submarine officer and qualified Navy SCUBA diver performing security swims, underwater ship husbandry, and dry-docking inspections. Additional experience includes leadership roles supporting submarine escape and rescue systems, including work with Atmospheric Diving Systems, submarine rescue chambers, pressurized rescue modules, and deep submergence rescue vehicles used in underwater intervention and rescue operations.