Jackie signed for Celtic from Dunfermline on the 3rd of October 1995 and had a successful 10 years at the club. He left Celtic on the 14th of June 2005. Jackie made a total of 358 appearances for Celtic scoring 15 goals. He was club captain for the 2004-2005 season. Jackie won 4 league titles , 3 Scottish cups and 3 league cups. He was also in the team that reached the 2003 Uefa cup final.