Why do some companies have such a terrible, awful interview process?

I recently interviewed for a BI engineer position and was declined after the first interview stage because I was very caught off guard by some of the questions. They told me it was just an introductory interview to get to know you and some of your background, walk us through your resume. So that's exactly what I did. It was an informal 30 minute call talking to them about who I was, some of my past experiences at a very …

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