[dbt00]

I know this candidate too, and I've struggled with this hiring decision -- and I always tried to remain unbiased by reading as little as possible about the candidate before interviewing them (as in, don't even look at the resume). There's a certain lack of humility with always being the smartest person in the room in every conversation for several years that causes problems. Hell, I've been that guy in past lives.

FWIW, I've interviewed hundreds of people at major silicon valley companies. I wouldn't presume to diagnose someone's hiring biases (we all have them) without more data than you can find in a single HN comment.