He is an American businessman. He was the inaugural Chief Technical Officer of Tesla Inc. until moving to an advisory role in July 2019. At Tesla, Straubel oversaw the technical and engineering design of the vehicles. Straubel also had responsibility for new technology evaluation, R&D, technical diligence review of key vendors and partners, IP, and systems validation testing.
In addition to his work at Tesla, Straubel was also on the Board of Directors for SolarCity. He is also a lecturer at his alma mater, Stanford University, where he teaches the Energy Storage Integration class in the Atmosphere and Energy Program.
In 2017, JB established a company, Redwood Materials, working on the recycling of lithium-ion batteries and e-waste.