Recruiter emails multiple times asking for interviewing with pinterest. It a very a worst interview expereince I just had ever in my life. It was a 1 hour technical phone screen. Here are the things I found with my interview expereince: 1.Firstly the interviewer called me late by around 10 mins, following time or apologizing if you are late is expected to be a good manners. which interviewer did not do. 2.When I started with a solution he again changed the problem to prove my solution was wrong and not scalable (Come on where do you find a scaling sudoku) . 3.I made a mistake in computing complexity (come on Interviews are never stress free) by this time he made up my mind that I am a bad engineer and started to criticize all points I made in the discussion. Instead helping me out or working with me. From this point on wards he kept on pointing faults in my solution. You can not judge a person based on one mistake. People do make mistake no one is perfect all the time. 4.He kept on changing the problem trying to prove my solution wrong or inefficient all the time. I don't know what he was expecting out of the interview, I did not write a single line of code. It was not pleasure interviewing with pinterest, the interviewer's attitude was really bad. The interviewer said it is not working out and dropped the call in 30 mins, It sounded very rude to me.