The locksmith is a UT (utility technician). While they also take care of the locks, there isn’t enough work for a full time locksmith. Mostly a UT can be thought of as a bit of a handyman. If anything breaks they get to fix the item. Everything from furnaces, ovens, washers and dryers etc all fall to the UT dept. A good example of a UT would be the person in a big hotel who gets called when something doesn’t work. They aren’t experts but they need to know a little about plumbing, electrical, appliances and in general, just how everything works.
When things aren’t broken, the UT’s take care of different zones around MCM. They do a furnace check each day on each building, and do any preventive maintenace required.