There were three parts to the interview process. The first one was an online assessment that consists of analytical reasoning, quantitative testing and pseudocode. The first two parts are quite easy but the pseudocode does require a lot more time than what they give you. They do not require 100% completion, but rather focus on the accuracy for the ones you did respond. The second part was a video call where they give you an optimization problem. Here make sure to walk them through your process because they are looking to see your thought process and how you communicate. And finally, the third one was an On-site interview in Chicago where I met with the Head of Analytics and the Head of Customer Success separately. One of them will ask you in-depth about your technical background and the other will give you another optimization problem.