Doolittle is one of three journalists who has seen the infamous video of Mayor Rob Ford allegedly smoking crack cocaine and the author of Crazy Town, a book on Ford and his family.
Editor-in-chief David Walmsley said in a memo that Doolittle will join the Globe later this month.
“The celebrity that surrounds such success isn't Robyn,” Walmsley said. “Rather, she is a powerful force in journalism for the right reasons. She joins The Globe because she wants to work at the highest level on the biggest stage. She wants to always improve herself and break bigger stories. She is far more than one story. That appetite is a currency we all must deal in.”