What is Hermione profession in the book Harry Potter?

Hermione Granger, though brilliant and accomplished, doesn't have a specific profession in the Harry Potter books. The series ends with her working at the Ministry of Magic, but the specifics of her role are never fully explained.

We know she's involved in reforming the laws that discriminate against magical creatures and fighting for the rights of house-elves.

So, while her profession isn't clearly defined, it's safe to say she's a powerful advocate for justice and equality within the wizarding world.