Everything important is on the front page, but I put the more “fun” stuff on the back, in terms of personal projects/hobbies or other things that might be semi-relevant to the role.

It works pretty well, because it also allows me to gauge their interest in me pretty quickly if they bring up anything on the back page. If they didn’t find my resume interesting enough to even bother flipping it over/scrolling down, it’s probably not a great fit. So far, it’s worked pretty well as every single time an interviewer has brought up something on the back page, I’ve gotten an offer.