Aignostics Backend Software Engineer interview questions

1. Video call with Data Engineer, he was great to talk with and motivating. Answered some Python related questions. Fixed some code exercise. 2. Video call with to Software Engineers where I had to speak about Hash Maps from a theoretical perspective. Followed by a live coding exercise that had to be optimised. It was not as great as first interview but went ok. 3. A system design interview with 2 Senior Software Engineers. This stage was not nice. I tried to focus continuously thinking out loud and trying to reason a design that I was not particularly familiar with but still tried my best, while one of the interviewers was yawning and understanding the opposite of what I was saying in several occasions making me feel like I was in the wrong path and confusing me. I eventually received an email after 2 weeks of interviews and many hours of preparation saying they continued with another candidate. Until here, OK. The problem comes when I asked for feedback to continue improving and I was totally ghosted. This is unacceptable when you have spent 5h hours in interview calls and spent several days preparing. Its alright to give this answer if you are not passing the screening interview but for god's sake if someone does not pass the design interview, the bare minimum is to give them feedback. This shows what kind of company they are. great mission but poor ethics.