Jack Pfeiffer is a seasoned professional in data science and engineering with extensive experience in the clean energy sector. Currently serving as a Staff Applications Engineer for Megapack at Tesla since September 2025, Jack previously co-founded and served as CEO of Elecore. Prior to that, Jack was the VP of Data Science and Software Engineering at Fermata Energy, focusing on creating scalable systems for vehicle-to-grid applications. Jack has held various roles, including Director of Data Science and Staff Data Scientist at Geli, where efforts were directed towards innovative energy storage solutions. Jack’s career also includes positions at Delta Analytics, Clean Energy Leadership Institute, and Innovations for Poverty Action, showcasing a strong commitment to leveraging data science for positive social impact. Jack holds a Bachelor of Science degree from the University of California, Berkeley, with a focus on environmental economics and policy.
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