Careem Machine Learning Engineer interview questions

It was 4 phases: 1- HR 2- Problem solving and data structure 3- System design 4- Machine learning and big data The system design was the worst, I told I will be assessed with some criteria, and it ends up going through my resume and asking me about big data technologies I have never used in my life and I didn't claim I knew in my CV. I was asked about a project I did 3 years ago in small details and I didn't answer. After a while he asked me the same question again. It seems he wasn't prepared and just asked any question came to his mind.