CSG Software Development Engineer SDE II interview questions

Number of rounds: 2 (Both technical round). Interview was very easy. Be clear with your basics and the tech stack you are working on. I answered each and every question. They asked 2 codinng questions. And interviewer was impressed by my code. 2nd round was very easy, answered each and every question. Still after interview got rejection mail. Not sure after positive feedback from interviewer why they are rejecting. Total waste of time. Never going to apply in this company in future.