Recruiter reached out on LinkedIn. Scheduled an initial technical screen with a Data Scientist, consisting of a LC medium and a math question. Both questions were reasonable and the experience was good. The next phase was horrible: the interviewer they originally scheduled did not show up, and they sent a new data science manager to conduct the interview. This phase was half resume review and half ML fundamentals. The interviewer went through each bullet point in my resume, and asked to provide details. It was hard to communicate with this interviewer, as he aggressively asked for details on everything, even when I mentioned that I could not share specifics of certain bullets (e.g., research papers, etc.) because of non-disclosures. Also, seems like he assumed I worked on one single project in each of my previous jobs, and asked questions accordingly. Interestingly, he was unwilling to respond some of my questions. I did not hear back after the last interview, but I assume it was a reject. I will not bother asking them for an update anyway.