Add an Other Skills & Experience section at the end of your resume with relevant experience minus the dates. It'll be picked up by the keyword bots & maybe trig

Add an Other Skills & Experience section at the end of your resume with relevant experience minus the dates. It'll be picked up by the keyword bots & maybe trigger curiosity from hiring managers who will bring you in just to ask about it. When asked, say "a few years ago I worked on ..." instead of giving dates. An employer hungry for those skills will likely not care that there isn't a date attached.