Carroll joined Labor at the age of 21 while living in Mount Macedon in rural Victoria.[2]
He then served as Councillor for the Shire of Macedon Ranges.[3] He has also previously been employed as a Ministerial Advisor to the Victorian Treasurer, Adviser to the Minister for Finance and Consumer Affairs and as an Adviser to the Minister for Gaming and Consumer Affairs.[2]
Carroll subsequently worked as the Assistant State Secretary of Victorian Labor from 2009 to 2011 and then as State Secretary from 2011 to 2016.[4] As State Secretary, he oversaw the 2014 state campaign that elected the Andrews Government in Victoria after just one term in opposition.[4] He is known for his bluntness, strategic mind and is considered a very close confidant of Labor Leader Bill Shorten[4] and previously worked for Senators Stephen Conroy and Robert Ray.
In 2013, he was awarded the ten-year service medal for service to the Country Fire Authority.
Caroll resigned from the position of National Secretary in July 2019 following Labor's defeat at the 2019 Australian federal election.[7] He now works at KPMG in the management consultant division.[8]
