Joyce began his club career at juvenile and underage levels with a Castlemartyr-Dungourney amalgamation known as Kiltha Óg. He won a Cork Premier 2 U14 Championship-League double in 2016, before claiming a Cork Premier 2 MHC title in 2018 after 2-13 to 0-12 defeat of Bandon.[4][5]
Joyce made his first appearance for Castlemartyr's adult team in 3-13 to 2-13 defeat of St Finbarr's in August 2020. He ended his debut season with a Cork LIHC medal after a 1-20 to 0-11 defeat of Russell Rovers in the final.[6] Joyce added a Cork IAHC title to his collection in November 2021 after being named man of the match in the 1-19 to 0-12 defeat of Sarsfields.[7]
Joyce first appeared on the inter-county scene with Cork as a member of the minor team during their unsuccessful Munster MHC campaign in 2019.[10] He immediately progressed to Cork's under-20 team in 2020. Success in this grade was immediate with Joyce claiming Munster and All-Ireland U20HC medals in his first year after respective defeats of Tipperary and Dublin.[11][12] He claimed a second successive Munster U20HC medal after a two point defeat of Limerck in 2021.[13] Joyce's last game in the grade saw him claim a second successive winners' medal after a defeat of Galway in the 2021 All-Ireland U20 final.[14]