Including the initial call, there were 5 rounds in total (case study review, task review, face to face with the team, culture chat with c-level). Even though I didn't get the job, it's important to mention how incredibly professional the team and process were.
Being located outside of Germany, they even flew me in for a face-to-face interview, making the whole experience very welcoming, enjoyable, and informative. I received thoughtful feedback at the end, and in a highly competitive work market, it was great to get this follow-up with clear reasons that made complete sense to me.
A big thumbs up to everyone involved, and I look forward to seeing Kertos grow and succeed in their mission.