Elon Musk, Twitter's new owner and Tesla's CEO.James Leynse/Corbis via Getty Images At least 17 Tesla, SpaceX, and Boring execs have been authorized to work at Twitter, CNBC reports. At least 11 senior leaders at Tesla have been authorized as such, per CNBC. Musk cut about 70% of Twitter's 7,500-strong workforce in the weeks after buying the company. Elon Musk has authorized at least 17 top executives from Tesla, SpaceX, and The Boring Company to work at Twitter, CNBC reported Thursday.SpaceX CFO Bret Johnsen is among them, as is Tesla CIO Nagesh Saldi, according to CNBC, which cited internal records and company sources.They're believed to be among the roughly 150 employees that Musk has drafted in to Twitter from his various other ventures.