BetterthanAnime
Light Soprano
Hermione was the only one of the trio who went back to repeat 7th year so she could get her N.E.W.T.s and properly graduate.
Quote:
J. K. Rowling said in an interview that there is some form of graduation ceremony for Seventh Years that includes riding the Hogwarts boats back across the lake as they leave, but that she chose not to include it in Harry Potter and the Deathly Hallows, as "to have a graduation scene on top of what just happened would've been an absurd bit of anti-climax."
J. K. Rowling also stated in the same interview that although Harry, Ron, and Hermione skipped their seventh year to hunt for Voldemort's Horcruxes, Hermione went back to Hogwarts to get her N.E.W.T.s and properly graduate. Harry and Ron, however, did not return, and instead worked with Kingsley Shacklebolt to round up stray Death Eaters.
source
so in other words they became unofficial Aurors.
After saving the world multiple times. I think they were entitled, don't you, HP Subforum?