1. sanitation engineer: formerly “garbage collector”
Daddy when I grow up to be a man I want to be a sanitation engineer so I can pick up garbage.
Call things what you want, but PC-created "self-esteem boosting titles" are everywhere... and just as silly as the above example.
I spent 8 years in the USMC fixing the FLIR/Laser systems on A-6Es and later F/A-18As. I had electronics engineering classes at university before entering active duty, and more high-level electronics training in the service... and I was always called (and called myself) an "Avionics Technician"... or a "Maintenance Technician".
I definitely was NOT an "engineer"... in either sense of the word: one who designs and creates... or one who operates an engine (rail locomotive or aircraft powerplant).