3 round's 1) Hacker Rank with MCQ questions with a fixed time Limit to complete, was fairly easy and can be done in the stipulated time frame. 2) Technical round f2f: was asked regarding current project and some technical question on spark and java. 3) Technical round f2f: This was the worst interview experience i have ever had in my long career. Was interviewed by someone who was very impatient and rude. He kept interjecting when i tried to answer a question. He wasnt very clear with his questions and when i did answer his question he said it was wrong and then changed his question entirely to tell me why it was wrong. He wasnt even interested in listening to my point of view. In the end when i asked about the role he was hiring for and what would the requirements for this role be he pawned it off saying you will hear back in the next round. going by the experience i had in the second round i most definitely would never consider working with Neustar if my peers are going to be like this guy