Scheduled interview for two days later giving me virtually no time to prepare. Asked detailed technical questions regarding concepts I have no experience with; they were not mentioned in the job description or part of my resume. Nevertheless my lackluster answers resulted in their decision not to go forward. I don't feel this result was entirely my fault, given that I had so little time to prepare and was given no materials to give me an idea of what to expect in the interview. For comparison: I have also had interviews with Facebook and Amazon. I didn't get a job offer with them either, but they were a much better experience. I knew what to expect of those interviews, and I know they did not go forward with me because I just couldn't quite solve problems as quickly and efficiently as they wanted.