3 rounds. all 3 technical. 1st round was with Hiring Manager and he asked me about the project and coding question. Rain water trapping question. He was expecting Stack based solution. I implemented it but answer was wrong so he was helping me but could not find the mistake. Eventually he agreed to let t as it is. 2nd round was with senior Engineer or Staff Engineer. he asked about Microservices. How do they communicate with each other. High Availability architecture. Quorum based leader decide. How message queue work. 1 coding question. - 1st non repeating character in a String 3rd round was also similar where he asked me about microservices and its details. and 1 coding which I could not solve in the time limit. Find 1st missing positive integer in the array in O(N) time and O(1) space.

Everything depends on the level of prep. If prep is good then the interviews are easy to crack, if not then it will be the most difficult one. The number of rounds can increase or decrease based on the requirements. On an average 4-6 deep technical discussions is expected