In 2007, Reid won the Leinster Schools Rugby Senior Cup with St Michael's College.
Ahead of the 2019–20 season, Reid joined English Premiership side Leicester Tigers.
Reid was signed by Premiership Rugby side London Irish in February 2022 for the remainder of the 2021–22 season.
[6] He made his debut against Harlequin sin the Premiership Rugby Cup.
Reid made his senior debut for Ireland on 14 June 2014 when coming off the bench in the second test of the tour to Argentina.