Total work ex: ~3 years
BS, MS computer science
Leetcode: 600+
After OA, 4 rounds of onsite interview
Round 1. System Design: nailed it! Was asked to design some amazon retail feature.
Round 2. Coding: nailed it! direct leetcode question based on minHeap & maxHeap (you guess) but a follow up was good.
Round 3. Coding: Couldn't perform well, question was vague and didn't get it. Came up with a viable solution at the end but didn't optimize. I guess the question was based on 0/1 knapsack.
Round 4. Coding: nailed it. More of an object oriented desing/coding stuff. simple!
I think I performed quite good overall but may be went too hard on them while asking behavioral question. I think I asked hard questions on their own LPs and they were shitting in pants :P
Hope this helps!
cheers!