Jack joined Shelbourne on the 18th of July 2025 with an elite pedigree, having spent much of his formative footballing years in the prestigious Arsenal FC Academy.  

A Londoner with roots in the West of Ireland, Jack has represented the Republic of Ireland at U19 and U21 levels. Jack would have made himself known to many Shelbourne fans while on loan at Sligo Rovers during the 2024 season. His accomplished displays in the centre of the field marked him as an exciting talent and one to watch. 

Jack announced himself to the Shelbourne faithful as he sent the travelling fans into raptures with an 88th minute winner in Turner’s Cross.

Adept with both feet, capable of snuffing out the opposition as well as creating chances himself; Jack really is the complete midfielder. Rightfully seen as a coup by the club to get his signature on a multi-year contract, everyone at Shelbourne is excited to see what the future holds for JHF.