There are a number of traditions, even so. Weapon crafters are a very important one, as are the artists who decorate the temple, and other areas. Miners are a very skilled profession, as they must get rock that can be crafted properly, no mean feat. Furniture makers are also around, and can be very skilled. Mechanics make the hinged chests and even more complex mechanisms, and are undoubtedly the most skilled group of crafters.
Skills vary, but can range very high indeed.
The Syethiss hunt bats, lizards, and other creatures of the darkness, and farm fungi which they grow on detritus brought down from the surface. Occasionally, they go and hunt rabbits and the like on the surface, but usually only at night, because otherwise the bright light disorientates them. They are the working class of the Syethiss, but the Hunters could fight if necessary. Children Syethiss children are brought up to respect the temple, and are trained for whatever task they are most suited for. There is some favouritism, except in the priestly profession, and a tendency for jobs to run in families.