YOE: 5 years

No phone screening.
I don't know why, Initially they said they will schedule, but later asked me whether I was comfortable with direct virtual onsite?

Round 1:

• Google hangouts, there are lot of conversations between many users, you have all that data.
  You have to return top n users based on their word count. similar to https://leetcode.com/problems/top-k-frequent-words/ or https://leetcode.com/problems/top-k-frequent-elements/
  finished in 35 min after parsing user and number of words he entered. last 10 min -> normal discussion.

Round 2:

• Given a list if sentences and list of words, if word present in sentence, you have to print that word. Interviewer asked me to develop using Trie, I didn't get the idea of using trie.
  I didn't do well in this round as only 45 mins.

Round 3:

• https://leetcode.com/problems/reorganize-string/
  I did this problem 10 days before interview but I didn't get idea for 30 mins that to Use heap. I got it after 30 mins, but I wrote a code which won't work for all cases. I forgot the solution.

Round 4:

• behavioral

Round 5:

• https://leetcode.com/problems/same-tree/
  I wrote recursive, interviewer asked iterative one. it's also done in 15 min.
• https://leetcode.com/problems/flip-equivalent-binary-trees/
  I gave recursive solution with time complexity, O(n2), interviewer asked whether I can optimize or not? I said if we do level order then we can reduce time complexity. I didn't have time to write solution as only 45 mins and already gave 3 solutions :)

I know I could have done better in 2and 3rd , atleast 3rd.
feedback: 2 rounds got mixed feedback, mostly 2and 3rd.

I feel it's not a tough interview. I only practiced solved/unsolved hard problems before last week of interview and left medium ones. my suggesttion is to revisit all solved problems in last 10 days before interview.