There were 6 rounds of interviews, including the screening round. The rounds were fairly decent, and the interviewers were friendly.

I really appreciated the hiring manager round and the high-level design round, as the interviewers were logical and the discussion was nice.

Technical phone screen (1 hour): https://leetcode.com/problems/repeated-dna-sequences/ A lot of cross-questioning around memory. Bitwise answer expected.

Given weights such as (a, b, c) for heights of a tree. Print the final answer evaluating an expression such as a(sum of all at height 0) + b(sum of all at height 1) + .....

Data Structures (Round 1): https://www.geeksforgeeks.org/the-celebrity-problem/ One more LinkedList + Heap question (don't exactly remember).

Data Structures (Round 2): Order tree nodes in the order in which they will fall. Child nodes fall first, then parent nodes fall whose child nodes have already fallen. https://leetcode.com/problems/max-stack/

System Design: Design a system responsible for determining trending posts for the last 10 minutes, 1 hour, and 24 hours. Extended discussion around several approaches. In-depth analysis of tech choices. In the end, an extension was added: what if the number of times a post is shared is clubbed with the type of post, posting person, sentiment, and topic to determine the trending posts.

Technical Communication: Choose a project you've previously worked on in-depth. I was asked to choose one where we could have a 40-45 minute discussion. The interview went for approximately 80 minutes, and the interviewer asked very detailed questions on tech choice, teamwork, time and resource management, stakeholder communication, and conflicts.

Hiring Manager: Lots of behavioral questions. Some that I remember are:

• Why are you looking for a change?
• How to handle conflicts in the team?
• What, in your opinion, is your biggest achievement?