I applied through an employee referral. The process took 3 weeks. I interviewed at Tesla in Jan 2018
Interview
3 rounds.
First round was a quick phone screening by the HR, than he gave me a project to do (a data set with two questions involving prediction / classification).
After that, a 1h interview with the hiring manager. Basic questions about motivations / resume, an easy case, and he asked me to present the project I had to do. Globally it was a pleasant interview, with a lot of a time for questions about the position.
Then I had the final round which was a 30 mn call with the director, with questions focused on my previous experience. It was also a pleasant interview.
However, after contacting them by email to let them know that I had a deadline for another offer, they did not answer me to tell me when I should expect a response...