According to a report from Casey Michael of Squared Circle Sirens, WWE recently tried to hire a female referee from the Independent circuit. She reportedly turned them down, though.
As previously reported here on eWn, WWE has been actively looking for more referees, including females. Jessika Carr is the only current female referee under WWE contract.
Aubrey Edwards signed a full-time contract with AEW after serving as the referee for the AEW All Out main event.