The interview process looks like these. Hiring manager round + Coding round + (potential system design and ML round). Failed at coding round with no reasons. I passed all questions and test cases with desired run time complexity and also optimized my code suggested by the interviewer. No idea with reason of failure.

There were 3 rounds. They were pretty easy. However, they didn't seem to be very organized in their interview process and have unnecessary expectations. I was able to answer all the questions and talk about the optimizations with 7 minutes left in the interview but was still rejected. Recruiter Discussion 1:1 with the Manager Coding Round