Academic jobs may depend on the school you attended but its not limited by that.....if you do a good PhD research that gets good recognition in your field and with good recommendations, you may land good academic jobs....I have seen great scientist who taught in ivy league colleges but did not even get PhD from top 100 schools in US....so if you research is distinguished then academic jobs may come knocking......also a distinguished PhD research will open good doors for Pos-doc positions in top schools and if you do vert well there you can land a good academic job...so dont think academic job solely depends on your grad school....your RESEARCH and your achievment in your field can take you up there..