Dean started his career going through the youth ranks at York City, and he was handed a professional contract at the Minstermen at the end of the 2009-10 season. During the following season he was released from York and went on loan to Stokesley.
Lisles then signed for Guiseley during the 2010-11 season, before trying his luck at Hull City Reserves. In January 2013 Lisles was involved in a nasty car crash on his way to training, breaking his ankle amongst other injuries. It was his first season for North Ferriby as they pressed for promotion to Conference North, but Dean's career was suddenly plunged into doubt. He fought his way back and signed for Scarborough Athletic in November 2014.
After some ups and downs with injuries at Boro, Dean returned to football in January 2016 and was a brilliant addition, making 11 appearances, and he was awarded with the Player of the Year trophy at the end of the season.