The person spoke on condition of anonymity because the school was still working on an official announcement.
The Star-Ledger of Newark, N.J., first reported the hire.
Hermmann has been the Cardinals' senior associate athletic director and senior woman administrator. She becomes the third female athletic director at a school among the 124 playing at college football's top tier.
Rutgers has been looking for a new AD since Tim Pernetti resigned on April 5, part of the fallout from the Mike Rice scandal.
Rice, the former men's basketball coach, was fired when a video of him pushing, kicking and throwing balls at players became public.
