It's probably agist. At least adding "dedicated" is better than just saying "young." But what was the context? Was that just a description of the work environment, or was it in a list of perks?

> Was that just a description of the work environment, or was it in a list of perks?

Oh right, I see the difference now. It was of course a description of the work environment, and not a list of perks.

Not necessarily, but maybe the employer is subtly implying: "Old people don't need apply."

But if the employer wrote the job description with the intention of causing potential sexual arousal (e.g. if that perk is amongst free beers, chocolate and "frothy milk"), you are definitely objectified.