After joining the Ulster Rugby Academy from the Leinster system in 2024, Jack quickly progressed into the senior team after a few months, showcasing his excellent kicking ability and potential at fly-half. Jack quickly became the starting ten towards the second half of last season, getting the nod to take the reins against top opposition in Europe and the URC. After his breakthrough season, he was promoted to a senior contract and will be aiming to continue his progression into 2025/26.