She joined the writing staff of Parks and recreation in 2009. She wrote the screenplay for the 2013 comedy film The Heat which starred Sandra Bullock and Melissa McCarthy and was directed by Paul Feig. Dippold was listed in Variety’s 10 Screenwriters to Watch in 2012 and Interview’s 13 People to Look For in 2013. She created the comedy website LongAwkwardPose.com. Katie won an American Comedy Award for Best Comedy Screenplay for The Heat in 2014. In 2016 she wrote and acted in Ghostbusters.