I suppose you could be identified as "overqualified" if you don't limit entries on your resume. Actually asking for an age or birthdate is illegal in the U.S.
At my previous company, where I began in the startup stage, we had lots of people older than 40 and 50 in IT. We had a QA guy who had to be at least 60. I suppose it all depends on the company (and probably the geographic subculture) but this "ageism" stuff is out of my experience -- I'll hire someone who knows what he's doing and is motivated to do it, period. Stupid shit like "but he has a wrinkle" is moot.
At my previous company, where I began in the startup stage, we had lots of people older than 40 and 50 in IT. We had a QA guy who had to be at least 60. I suppose it all depends on the company (and probably the geographic subculture) but this "ageism" stuff is out of my experience -- I'll hire someone who knows what he's doing and is motivated to do it, period. Stupid shit like "but he has a wrinkle" is moot.