0. HackerRank OA: 1 Leetcode Easy & 1 Medium. Don't remember questions. No need to solve both with 100% test cases. I solved 1st with all cases passed and 2nd one only 9/13 passed, still received callback. 1. DSA - Design LFU Cache - exact from Leetcode - Design a LFU Cache - https://leetcode.com/problems/lfu-cache/ - Interviewer was friendly and offered tips wherver needed. - I took some time to solve as I had never solved this before, but at the end wrote optimized code 2. System Design - - Design Customer Reviews page for Amazon products - Interviewer was friendly. Round was decent, but in hindsight could have been even better. Lots of lessons learnt 3. Behavioral - - As per me went decent. Mostly TMAAT questions. HM asked a question - do you participate in Hackathons - I said i did one year but from next year could not do it due to tight timelines & workload. And due to that reason HM rejected me. - Since my other tech rounds went well, recruiter arranged a different team and a different HM to talk to me 4. Behavioral 2: - She was one of the coolest HM's I have ever seen. We had a good conversation on multiple topics as well as tech stack and culture at Groupon, along with TMAAT. - HM herself said she is looking forward to working with me!