I'm a current A320 driver, but still hold my AME w B/D, M1/M2 & R1/R2 ratings and DOM authorisation was well as A&P/IA. I freelance among my airline/airport friends working on their aircraft or mine to keep my IA current. I like wrenching and as an added benefit i'm usually allowed flying time. Works to my benefit as this arrangement keeps me current on most of the types/classes on both my Pilot/AME license.
Beg to differ was a licensed pilot before i became an engineer; a 250HR wonder who couldnt find a flying job on the field, took to hanging in the hangars with the AME's as a helper, got hooked never regreted the taunts of my PPL classmates, got free flight time and a license to be around airplanes thats not dependent on my medical. My AME backgroung opened the door to more flying jobs as i was qualified to fly and wrench.