If you didn't know that then you probably haven't really been reading the info the game gives you because its one of the first places you go to when you start the game.
I have 5 levels in the Cook skill but this seems to be ignored when I take the Cook job at the Town Tavern. It rolls against my base Soul only. Are skills not supposed to apply to jobs?
Please use the Report Bug button at the bottom of the page in question for queries. To answer you for now… Skills and Professions are handled differently in the system and is an area for improvement.