HR reached me through LinkedIn, screened my profile and the interview was scheduled on-premises. First round is DSA. Second is One DSA question + System Design question. I cleared first round. Lost in second round. Totally three or technical rounds were planned. First round I had two interviewers . They were very polite and helpful. We discussed about my previous projects, roles and responsibilities in current organization. A question on String manipulation was given with level of difficulty set to medium. I wrote the code in paper and explained and walked through the the solution for given input and on system. Initially my solution was not working for some corner cases, later I optimized it. Most important thing, we need to specify time and space complexity. In second round, Part1 - DSA Question(solved on paper and walked through the solution). Part 2 - System Design. I was asked to design a News Feed application. I discussed the requirements, drafted HLD and LLD on paper. Interviewer said I missed scenarios with respect to user. I missed few inner details like child tables, user table. Interviewer was not impressed. Dint clear second round.