His league and championship career as a goalkeeper with the Kilkenny senior team lasted several years between 1922 and 1934.
[1] Born in Three Castles, County Kilkenny, Dermody first played hurling with the local Threecastles club.
[citation needed] Dermody first played for Kilkenny as a replacement for the absent Mark McDonald in 1922.
He lined out for the team in the earlier rounds of the championship, winning a Leinster medal, but missed the subsequent All-Ireland victory.
[citation needed] As a member of the Leinster inter-provincial team on a number of occasions, Dermody won back-to-back Railway Cup medals in 1932, as captain, and 1933.