Well, both the Swedish and Norwegian Armies have a long tradition for using conscripts to do a lot more than what you think. E.g. on the main battle tank (Leopard 2), everyone except the tank commander (i.e. driver, gunner, loader) is a conscript. My brother-in-law was in the forward sigint ops division as a conscript. 90% of ship crews are conscripts, as are most of the air force support personnell.

To make sure these skills are not just forgotten, some portion of each years conscripts are selected for regular returns to the army for drills. (Army pays your employer for the time it takes, you get your regular dayjob salary.)