I am currently working on Big Data with a total experience of 10+ years. The interview went for about 30 min. First 15-20 minutes I was asked questions about my project and current work after briefly introducing myself. Then the interviewer asked one question on an algorithm to solve. I gave an approach which would work in the most efficient way possible. I could have given the basic way of solving the problem without thinking about the efficiency but i did not. So, I thought the interview will move on. But NO, the interview just ended there. No further questions asked. The interviewer did not know what position was I being interviewed for. So, the expectations were not clear at all. So, not a good experience.