3 rounds- hiring manager first does the interview and then you move to the next rounds (only if you pass). There is no case involved. Overall a good process and recruiters should be prepping you (not always the case)

Great interview process! very friendly and structured. I always knew what to expect after each round and communication was seamless. There were 4 stages with including the phone screen, and there's lot of helpful material online to prep, which made the process pretty easy for me!