First, HR screening. Passed the first interview with data science managers. They were very kind. Passed a take-home technical assessment. Then got an interview with a lead data scientist. Highly unprofessional. This individual was leaning back in their chair and seemed like they didn't want to be there. Asked me in-depth questions about my projects but couldn't follow my explanations, since they had never heard of the technologies I was describing (e.g. zero-shot models). At the same time, gave a high-sounding speech about how the company is 'always up-to-date with the latest in AI'. After this rather confusing interview, I got no answer back. Over the course of the next weeks, I emailed my interviewers asking for an update and was ignored by all of them, which may reveal that this behaviour is well embedded within the company. tl;dr: Highly unprofessional. Ghosted after 4 phases of the recruiting process.