I can’t judge (not being exactly a developer) but I was repeatedly told in the last weeks that anything above five years of experience was not meaningful. I’m not sure I was too happy about that. More importantly I have worked with people with three years on the job that are juniors, and with people whose three years of experience let them run circles around my stories.

My point is: being cocky is always bad. There isn’t any real standards otherwise, but… you need to be aware that using absolutes makes you redeemable to a lot of things.