Peter Kennedy started out as a high school teacher and lecturer before becoming a journalist with The West Australian newspaper. He later moved to the Sydney Morning Herald as the paper’s State Political correspondent and was Chief of Staff in the Canberra Press Gallery.
Peter then became Press Secretary to Western Australia's Deputy Premier Mal Bryce. He was a journalist with the ABC in Perth from 1990 until 2010, and in 1995 was awarded the prestigious Clarion Prize for outstanding contributions to journalism.
Peter Kennedy retired in 2010, but continued to provide political commentary, and was an Adjunct Professor of Arts and Sciences at the University of Notre Dame in Fremantle.