Does Facebook take feedback from interviewer who has shadow interviewer with him. I get to know that it was his practice interview and shadow was judging him instead of me.
A shadow is the dark. Every light has a dark. Shadow doesn't speak, a shadow won't leave.
You okay?
Pass me some of what you're smoking.
No.
Usually no, but if you get two interviews with shadows in the same day, one of them might count
Oh really? That happened to me when I interviewed at Facebook
What if one of normal round wasn't good and you did awesome in shadow round?
Depends if it is shadow or reverse shadow. This sounds like reverse shadow whose feedback will count.
Reverse shadow => Senior engineer shadow of Junior?
No. Reverse shadow means the person in training is the interviewer and the trainer just watches and scores them.
Nope