Councillor Siscoe was first elected to the City of St. Catharines Council as the St. Patrick's Ward Councillor in 2010, and subsequently re-elected in 2014 and 2018. He was the St. Catharines Budget Chair from 2014-2022. He sat as a St. Catharines Transit Commissioner from 2010-2018, at which time he joined and chaired the Linking Niagara Transit Committee.
He is a high school physics teacher at Saint Paul Catholic High School in Niagara Falls and a member of the Ontario English Catholic Teachers' Association and the Ontario College of Teachers.
His community involvement includes being a Niagara Children's Centre board chair, as well as a coach for Niagara Youth Flag Football and CYO St. Catharines Hockey.
Councillor Siscoe is the husband of Chrissy Sadowski since 2007, and father to four amazing children: Xavier, Canaan, Darius and Sophia, as well as two dogs: Apollo and Andy, and five cats. His hobbies include reading, running and learning.