I had an offer for something more suited to my skills before I left Google, skills that I knew Google would ultimately need, but didn't yet need when I was there. In fact I had previously turned said offer down to join Google in the first place. These employers were happy to have me. All is good there.
What isn't so good is that since I left Google, several positions have arisen that would very much make use of my existing skill set. Several people within have tried to get me considered for those positions only to get shut down by HR without so much as a phone screen. So I would appear to be on some sort of black list. There are worse things in life, but it does seem silly to me.
It certainly comes to no surprise to anybody that a company as large as Google will have mixups in their hiring/recruiting process.
Often one arm of the organization does not know what the other is doing, although I am sure Google is constantly trying to improve their internal communications in order to prevent exactly this.
As for your point about the black list... I would say it would likely be closer to a note that has been placed in your recruiting profile instead.
What isn't so good is that since I left Google, several positions have arisen that would very much make use of my existing skill set. Several people within have tried to get me considered for those positions only to get shut down by HR without so much as a phone screen. So I would appear to be on some sort of black list. There are worse things in life, but it does seem silly to me.