I went through 5 interviews alternating between technical and hr/soft-skilss after each round. The process took around a month. The machine learning questions were quite basic and revolved around live-coding exercises where you implemented parts of algorithms (like the knn) live. The final interview was a bit weird. I had been a finalist with one other person and the team leader did the interview. I answered questions that didn't have a concrete answer, so if you were on theme you could argue many possible solutions for a specific problem. The interviewer did not like my approaches and advocated the use of a certain paper that they had co-authored. It was quite a bad ending to a good but otherwise tiring interview process. In the end I wouldn't want to work for someone who imposed their view on me, especially in problems that are open research questions.

The process started with an HR outreach on LinkedIn, followed by a phone call introducing the team and their work. The main interview focused on my past project experience and included several practical questions related to the team’s business scenarios, as well as one coding question. About a week later, I was told that there was no longer headcount for the role.