He broke onto the club's top adult team as a 16-year-old in 2010, before later lining out for University College Cork and Imokilly, winning consecutive County Championship titles with the latter.
At inter-county level, Spillane enjoyed five consecutive but unsuccessful seasons with the Cork minor and under-21 teams, before later winning an All-Ireland Intermediate Championship title.
[3][4] Spillane joined the Castlelyons club at a young age and played in all grades at juvenile and underage levels, winning an under-21 championship medal in 2010 following a defeat of Ballinascarthy.
By this stage, Spillane had also joined the Cork intermediate team, winning a Munster medal on 25 June 2014 after a 4-15 to 2-08 defeat of Tipperary.
[11] Spillane returned to the senior panel in 2016, however, he missed the latter stages of the league and the championship after suffering a cruciate ligament injury in a game against Waterford.
[17] On 5 March 2019, it was confirmed that Spillane, who had missed the early stages of the National League, was not able to get back to full training until closer to the Munster Championship.