Unfortunately there's no such thing. The problem is being essential isn't the same as job security. You can wind up with new leadership that dislikes the old g

Unfortunately there's no such thing. The problem is being essential isn't the same as job security. You can wind up with new leadership that dislikes the old guard, or entire divisions or businesses being wiped out by a small circle of executives and accountants that don't actually understand how anything get done in practice. Job security is the ability to go get another one. I suppose that's a place where being really good and someone people like working with can be extremely helpful.