A principal engineer from Singapore interviewed me with some lame open ended questions. When I was answering, he was seemingly disinterested looking elsewhere. Days passed.... No feedback. The HR tells me that he went on a vacation WITHOUT GIVING the Feedback. How great!! Later, I reached out to him, the HR multiple times and he never responded. Then, I concluded that it didn't go thru. 1. Get an honest interviewer. Rejection on performance is fine. But not by BS. 2. Make sure you stick to point one if you really want a competitive environment. That guy is not happy if he senses you know more than him.