HelloFresh Engineering Manager interview questions

The interview process was a joke. First of all, I applied for the Engineering Manager position, however, HR started interviewing me for the Principal Engineer position. I only noticed this at the end of the first interview. Apparently, they don't read applications or CVs well. Anyway, I was invited to the technical interview for the Engineering Manager position afterwards. I supposed to do the interview with two people from the company. An engineer, and a Director. However, the Director didn't show up, so I was alone with an engineer who recently got promoted to the squad-lead position. That was quite disappointing because 1) one-man interviews are usually problematic since you can't rely on a single person judgment 2) you would expect someone with a higher title in the room, especially for management positions and it was missing without no prior notice. Unfortunately, the interviewer wasn't enough experienced and he gave a negative impression to me about the company. For example, when he mentioned "some EMs are more technical, some aren't", I asked how roles don't conflict with the Principal title. His answer was "we only have 1 principal, we are also still learning about this title" etc. The whole interview was kind of an infrastructure oriented system design talk, that one can hardly correlate to a people-management position. At the end of the interview, there were only 3 minutes for my questions because the interviewer stuck with event-driven architecture questions. So it turns out HelloFresh has a huge PHP legacy with no clear architectural pattern. They have been migrating to GoLang but they don't seem to have a structured plan for this. There is a huge title confusion within the company. Some EMs code, some doesn't, and there is the Principal role that they don't know well. The interview process was very amateur for a publicly listed company.