Applied online for an entry-level design position. After an initial phone screening I interviewed on site with 7 engineers on the team. All of the technical questions were fair, albeit I performed rather poorly. That being said, my interaction with the hiring manager made this the most negative interview experience I have ever had. After asking some initial questions about my background, he asked where my parents are from. Next we moved on to some quick technical questions. After about 3-4 questions, I came across one that I could not immediately answer. As I was trying to figure it out he blurted, "What do your parents do?". Given the context, it seemed as if his question attempted to link my competency to my parents' occupations. After I interviewed with the rest of the team, the hiring manager came to talk to me one last time. In this conversation, he said, "Let me give you some advice, considering you're a [my ethnic background]". The last part of his comment was completely unnecessary. I don't think he intended to be offensive but his words were definitely misguided and unprofessional.