For the most part you get hired to one position. We get lots of people just like you who have many talents but their first year they take any job they can. We’ve had plenty of carpenters, lawyers, plumbers etc that were hired for things as diverse as janitors or dishwashers their first year. After that they move on to other jobs in their later years. On the other hand when things get slow often times people will “volunteer” to do other jobs and help out with things they know. That especially happens if someone gets sick and they are desperate for someone knowledgeable to replace him.