The tech industry has a reputation for being hard on older engineers, and I’m sure there is some of that, but I doubt it’s the problem it’s made out to be. Anectdote, I know, but the older engineers I know are doing fine, one gentleman pushing 70 recently came out of retirement to work on Ethereum. The number of developers has roughly doubled every five years for about thirty years now. Even before you subtract progr…
I also know from running my own company with partners back in the mid 90s, we were all early 30s except one partner who was 52ish. When getting health insurance for the company his insurance was much more expensive than anyone else's. Maybe that only happens in places like the USA but it registered as yet another reason a company might not want to hire an older person.