The prop forward honed his skills at Ballymena Academy and then at Eaton Park, Warwick made his senior Ulster debut against Cardiff Blues in early 2014. His performances thereafter for the A side, and for his club, ensured he was offered a Development contract by Ulster later that year, and soon progressed to a senior contract. An avid student of the game, particularly of the skills of the front row union, he adds a combative nature and technical excellence to the squad. 2021-22 was a standout season for Warwick as he racked up many starting appearances for the Ulster men in the URC and Heineken Champions Cup.