Jerome Guillen, a critical executive at Tesla who was working on the development and eventual production of the Tesla Semi has left the company, the automaker said Monday in a filing to the U.S. Securities and Exchange Commission.
Guillen had a decade-long career at Tesla and held numerous roles, including his most recent position as head of heavy duty trucking. He started as the acting VP of vehicle engineering in 2012 before becoming program director of the Model S. He was later appointed president of automotive before becoming president of heavy duty trucking in March 2021.
The Tesla Semi, a battery electric semi-truck, is still in development. Earlier this month, the company announced that the first Tesla Semi Megacharger would be installed at Frito-Lay’s Modesto, California delivery center. The Megacharger charging stations will be capable of serving up to 100 Tesla Semi trucks.
It was reported earlier this year that Tesla is building a new production line for its Semi model near its Nevada Gigafactory location, with the aim of producing five semi-trucks per week.