Arguably one of the worst interview experiences. The hiring manager interviews you first, and honestly this is the best way to assess proficiency for a DS role. Was provided a churn data set and then expected to work with the interviewer in developing a model in a notebook. The open-book pattern allowed the process to be a discussion rather than ask-and-answered type interview. I believed this would continue throughout the process, but it just got progressively worse. Next was a grueling 5hr interview process in a single day with 1 Data Analyst, few MLE engineers and 2-4 Data Scientists. MLE engineers asked a Python Class problem in a code testing website, which was ok, but unnecessary for a DS Role. Data Analyst was a SQL question in a Google Shared Document. Didn't need to be a special session, finished the exercise in 15 minutes and awkwardly spoke for another 30 mins. Then came the interview with ALL the Data Scientists. This is where the impression hit rock bottom. The first 15 minutes were spent on talking about their own educational background and graduate research from ivy league schools, and it had no bearing on the kind of work that the company does. It just came off as elitist. One of the Data Scientists, was condescending and kept rolling their eyes at answers. They would not accept alternative explanations, kept interrupting and then proceeded to present the same solution. I think they need to figure out how to streamline the interview process some more and not expect a senior level candidate to allot 5 hours at a stretch, especially when they are working full time.