I've been involved hiring a fair amount and I'm pretty sure there's no blacklist, at least in the tech world. In fact, I once worked at a place where someone st

I've been involved hiring a fair amount and I'm pretty sure there's no blacklist, at least in the tech world. In fact, I once worked at a place where someone started at the company, worked a couple of weeks, then left because their preferred job offer came through. A couple of months later this person came back and said the other job wasn't working out and was hired again. Despite the messaging constantly broadcast by HR departments, it really is just business, unless the organization is horribly dysfunctional. There are vindictive individuals out there, but you don't want to work for those people anyway.