You ensure the timely and proper transition of winter to spring

You are a customs officer who helps keep invasive species from sneaking in on regular cargo routes.

You're a mercenary

You make people fall in love

You're a surgeon

You manage the kingdoms Botanical Garden.

You specialize in anti-poison and detoxification wards, and have a standing contract with the Palace kitchens as well as various embassies and other sensitive areas, for prevention.
But that actually doesn't take up much time, not once the wards are constructed the first time. Those are mostly maintenance.
Where you spend most of your time is training the people who run various Poison Help Centers and hotlines around the country. Your goal is to make sure there's a coordinated centralized system that can make sure enough experts are available to send out to every area, rotating people through so that no one stagnates in their learning and knowledge, and so that concerning trends are quickly spotted and addressed.
It's a lot of work, and it never ends.
But it's worth doing.

You take care of the interior decoration of the castle.

You're the marriage councilor

You serve the Queen in administrative work writing letters and sending orders.