What are some of the other food related jobs out there

You mean, besides waitress, chef, short order grill cook, and the like? FDA inspectors check the quality of meat and produce. Butchers handle food. Grocery purchasing agents determine how much to stock and from what distributors to procure supplies.

Cattle ranchers and farmers are also involved in the food industry. Weather forecasters, to a somewhat lesser extent.

McDonalds, Starbux, thing like that.