Dr. Gannon spent 25 years in industry as a Micro-Electronic Lab Manager (Xerox Corp.), Distinguished Engineer and Manager of Microprocessor Chip Development and Fabrication (Sun Microsystems, Seeq, Xilinx, Quasel, Teragen, and other semiconductor tech companies), and Co-Founder of two semiconductor companies, Quasel and Teragen, that were subsequently absorbed into other companies. He then transitioned into scientific research spanning healthcare, income distribution, climate science, and other topics. Over his career, he has managed a broad set of disciplines, including device technology, complex chip design and product development, coding, fabrication, and business development.

In climate science, Dr. Gannon's technical background in semiconductor science (quantum mechanics, optical phenomena, multi-variable non-linear systems and computer modelling) has enabled him to examine climate change theories comprehensively.