In the beginning, Katie worked as a waitress at SUR Restaurant and Lounge. Katie started her acting career with the television drama show, 2009; A True Story as Sara Ford and in Harper's Globe as Ashley. Then, as a costume assistant, Maloney portrayed in dark comedy movie, American Cowslip.
Along with this, Katie has worked as a music supervisor and producer for the series BlackBox. Afterward, Katie appeared in season 3 of Vanderpump Rules, which happened to be one of the biggest achievement of her career. Following this, Katie appeared in numerous short video and televisions shows. Additionally, Maloney co-founded the beauty, fashion and lifestyle website Pucker and Pout.
Moving towards her personal life, Maloney was in a love affair with Tom Schwartz. The couple began their romantic relationship in 2015 and after dating for a year the love bird exchanged their vows in a star-studded wedding ceremony at TwentyMileHouse in Northern California. Sadly Maloney and her spouse, Tom's relationship turned into a divorce. After going unsuccessful marital relationship, Maloney is currently enjoying her singlehood.
Maloney belongs to a white ethnicity and her nationality is American. Maloney earns a decent amount of money through her career as an actor. Maloney's dedication towards work is the reason for her ultimate success. As of 2017, she has a net worth around $30,000.