Handicap for PostDoc and Academia Jobs from having a PhD from low ranked universities
I can only answer for my own job market (UK) and field (biology), but in general, what a good pedigree gives you, is second chances. If I was hiring a postdoc, I might take a chance on someone graduating from a good lab at a good uni without a publication under their belt, while from a less well regarded uni, or a research group I'd never heard of, I'd definitely want to see evidence of the ability to do publication quality research.