> So your company did a rewrite using platform X?
Not at all. They've been new projects, not rewrites of old ones.
> I still don’t see how learning a platform on your own got you past HR resume screening.
If I spent 3 years working with a platform on my own, that's still 3 years of experience with the platform.
> Age matters because someone just out of college probably at least did their internship in whatever platform is popular right now.
I don't understand this point. An older dev can also have spent a few years working with whatever platform is popular right now as well. Age doesn't enter into this at all.
I sense, though, that we're not fully understanding each other about something. Are you thinking that "3 years experience" is both a hard and fast rule and that it means 3 years being paid to work with it? Neither of those things are true.