Electronics Technician (ET) is a common enlisted occupation in the armed forces of many countries.
Common duties for ETs include repair, calibration, and basic maintenance of most electronic equipment.
People in these positions maintain and repair systems that provide views of surrounding airspace.
In these positions one earns a basic then an advanced apprenticeship and can obtain a degree of engineering later on in their carrier.
Electronic-Optronic Technicians are trained to maintain and repair ammunition (fire) control systems for the Canadian Army.