Tesla's team developing self-driving car capabilities lost a top engineer hired less than six months ago from Apple, adding to a spate of executive shakeups at tech companies competing to put fully autonomous vehicles on the road.

Chris Lattner, who left Apple in January and had been vice-president of the carmaker's Autopilot software, was the hire Tesla touted earlier this year after losing Sterling Anderson, the head of its Autopilot program. Since August, Tesla, Uber Technologies and Alphabet's Waymo have each lost executives who led their respective self-driving efforts.

"In the end, Elon (Musk) and I agreed that he and I did not work well together and that I should leave, so I did," Lattner wrote in an update to his resume.