Sales person.

My official work title is "Site Reliability Engineer", which means I'm somewhere between a clerk, a tinkerer, and a millwright.

But I'm not recording any transactions by hand and the mills I work on don't have anything to do with grain. Instead, they're simple but very fast arithmetical machines that the moneychangers had built to account for every penny that moves from one bank to another.

Sometimes the machines don't work as they are expected to, and it's my job to catch this misbehavior and identify the cause so that one of the arithmetical millwrights can figure out how to fix it. I also help them them do the fixing and testing to make sure the equiment runs true before we set it back to work.