First contacted by the recruiter, super friendly, probably the best recruiter I've ever met. Second round with Hiring Manager talking about the resume. It was okay. Panel interview with a presentation and 6 interviewers, overall about 4 hours. There is one interviewer who is probably the worst I have ever seen, he is a level 2 engineer and did not even know how long the interview session should be and when I told him 45 min, he acted like wow, this is too long and a waste of his time. This was the first negative impression. He did not even prepare any proper questions for the interview. He is a control engineer so tried to ask me control and thermodynamics questions, which are not even relevant to the function of the role I applied for. Then he switched to material questions and the way he asks questions was so unconstructed that I don't even know what he was looking for despite the fact I know all answers to his question after 5 minutes of clarification. This young man's communication skill and interview skill is totally out of his league, to the point I was confused about how he was hired. One bad apple spoils the whole bunch. After the interview with the company, I understand why there are so many negative reviews about the company. This company does not deserve the recruiter I contacted with.