Kemper worked as a staff writer on The Office from the beginning of the show's seventh season.[2] She wrote the episodes "Ultimatum" (season 7, episode 13);[3]"Spooked" (season 8, episode 5); "The Whale", in which she appeared as Jan Levinson's assistant Molly (season 9, episode 7); and "Junior Salesman" (season 9, episode 13). In 2010, Kemper and 21 other writers shared a Writers Guild of America award nomination for their work on The Office.[4]
In 2013, she had a brief appearance in the Arrested Development episode "Smashed" as Mrs. Astronaut Lovel.