Asklemmy

Not hard. I accept money and give it out on behalf of my Lords and Ladies, I mean, employers.

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.

I spend most of the day in a room looking at humorous public announcements from people all over the world until someone breaks the communication system for the organization and exile criminals and bad actors

I work in a trade school and apprenticeship has been around for ages so I think it would translate. I would just say that I help teach apprentices along with their masters, specifically about boats and ships.

I'm sitting jester

Yes. I'd just say "you know how the Courts have the power to do X, and decide Y? Well the government decided to devolve those powers to an independent office, so that people didn't have to pay for lawyers and deal with complicated legal processes. I work in that office making the Y decisions."