3 rounds, 1st and 2nd are back-to-back. You have a 30-minute break between the 2nd and 3rd rounds. Each round lasts 1 hour.

You might be asked about your previous experience and projects. My interviewer dived quite deep into my previous experiences, so be prepared.

1 BQ, 1 coding, 1 OOD + BQ

Coding: backtracking + trie tree

BQ: Most challenging project? How do you solve conflict with your colleagues? A time when you dove deep and learned something.

OOD: Cache, extensible in eviction policy (like LRU, LFU, etc.).