Peddler : White or Black market. White market open to Humans in most places, Elves in others, or Dwarves. Black market open to anyone. Merfolk have their own markets. Must provide description of what you sell and interaction with customers.
Ranger : Any race. Can be missionary, paid to run errands.
Teacher : Intellectual, suited for Elves, incredibly smart Humans, or Dyeamoths.
Farmer : Any race.
Blacksmith: Sells works to peddlers. Giants and Dwarves, mostly, though a few humans dabble in it as well.
Artisan: Like the peddlers, but this job class creates its own goods and wares, instead of buying it from other people. Again, describe what you sell, and in this case, how you make it/what it’s made from.
Mage: White or black magic. Open to whomever can use the magic. Work for whoever pays the highest. Note: White magic is healing magic. Black magic is magic that harms something else. Both can be used for good or evil, at the choice of the user.
For Job Upgrades, go here.