Both of my two post college jobs. A co-worker at an internship in college showed me HN and then I used workatastartup.com (The YCombinator job search site) to find both of my jobs.
I've also just been exposed to so many new ideas that have made me a much better developer. The only thing I would change is finding HN sooner. It's weird to think that this platform has taught me so much.
