I got two rounds, HR and Engineering. The interviewer was polite and casual. The questions weren't hard, but they required knowing specific equations off the top of your head for hand calculations without document reviews. They expected a specific number as an answer, which felt absurd; testing for IQ, situational handling, or work ethic would make more sense.

2 video interviews via Google Meet with team members followed by on-site interview in San Francisco. Technical questions asked in both interviews, both calculations and critical thinking questions were asked.