Google constantly emails me asking if I want to apply, though I'm not sure they'd hire me if I had the patience to go through their interview process properly.

I'm 34, have a bachelor's in math and one in comp sci from Carnegie Mellon, and I have about 11 years of full-time software engineering experience on my resume, primarily in C and C++.

30/high school drop-out/systems administrator (with 18 years experience)

You've been a systems administrator since you were 12? That's hardcore.

Me and a friend have a running joke/friendly rivalry about how I started coding when I was 7, and he started when he was 6... but he's a year younger than me, so we have the same number of years of experience.

I used to think that .. Until I turned '30 and realized I'd given more than 1/2 of my life to a career that I now find rather unfulfilling financially, intellectually, and personally.