Multiple stages. First stage is online coding using codesignal (or a similar platform) without proctoring as well as a screening interview with an HR member. Next stage included a all in-person interview day. First a technical interview with a researcher/engineer in the company. Then you will have a going around the city with one of the autonomous cars for about 30 mins with a few other candidates. Then there will be a system design question where you and 2-3 other peers are supposed to work in team (and think out loud in presence of a few reserachers/engineers and managers of the company) towards solving the problem. The team is fast to come back with a decision (less than 2 weeks after the final stage).