Except it's not.
Obviously making job ads with any sort of "ism" is stupid, but lets not kid ourselves, EVERYONE eliminates people as being potential hires after interviews show they might not fit in, regardless of ability. Is choosing someone equally or slightly less skilled, but with more potential, and hunger with them being 26 vs 56 worse than not hiring someone because they seem to be a bit of a douche? Ageism vs personalitism.
this does not mean I personally am closed to hiring people over a certain age. If there is a candidate, who is amazing for the position, and happens to be 60, then joy to us all. Unfortunately, I have probably been poisoned with my experience with oracle consulting, where everyone I dealt with with 20-30+ years experience were rubbish
So every single person was rubbish, yup think I found the common cause here and it is you. But hey thanks for this laugh at least one company I can remove from ever applying to if I would want to move (but then I am over 40 so rubbish in your eyes). That job ad reads like an infomercial, "not only do we want to mould you but for the cheap cheap price you will work with BIG DATA!!!".