If Ron was 17 in 1998, say, that would make him 45 today, so that gives you a gauging. Even Ron's son or daughter would be in the early 20s, tech savvy and just into a career in that field.

That gives you a link to Rowling's world but far enough removed such that you are using it as a timeperiod in history, albeit a fictional one.

I find the idea of your somewhat jaded protagonist playing off a bright shiny Ron and Hermione's chipper daughter more and more appealing an opportunity the more I think of it...