The interview was very vell designed, with 1 manager call to check your experience fit the team, and another 3 rounds of video techincal interviews. Then because my flight to SF was delayed, they kindly provided a take-home project which involved an AWS microservice design to finish before the onsite date. At last it is the onsite interview that included knowledge test, OOP question, system design. The interviews are set up at a medium level, and they keep emphasis on checking your coding fundamentals, as well as how well you know about microservices, scalable systems, etc. I feel very comfortable at the interview, and really appreciated that the manager let me join the team lunch and chat together. They are really a fantastic engineering team there.