Kate Joined Emmerdale as a storyliner before moving up the ranks to become story editor. A move to fellow ITV soap, 'Coronation Street' beckoned where Kate was the programmes assistant producer.
In October 2012 it was announced that Kate was to become Emmerdale's new series producer. Her episodes debuted in April 2013. In September 2015 it was announced that Kate would become producer of Coronation Street and Iain MacLeod would take over Kate's role as producer.
In August 2018, it was revealed that Oates would become the senior executive producer of EastEnders, Casualty and Holby City at the end of the year.