In 2018, Mongillo began portraying the recurring role of Juniper in the CBC sitcom Workin' Moms.[9][10][11] In 2019, she appeared in the film Long Shot, playing a teenage version of Charlize Theron's character,[12] as well as making an appearance in the slasher film Random Acts of Violence.[13] Later in 2019, she began performing under the stage name Carys, with the single "Bad Boy" released on July 26, 2019.