Raised in the Croftfoot district of Glasgow,[2] Harris began his youth career with Clyde, but moved to Rangers (the team he supported as a child)[3] for a year, before returning to the Bully Wee's setup.

Harris signed professional terms for Clyde at the start of the 2004–05 season, and made his senior début on the last day of the campaign, playing the full ninety minutes in a 1–1 draw against Ross County.

Harris signed for Dumfries club Queen of the South in July 2007, scoring his first senior goal against Dunfermline Athletic in a 1–1 draw in mid-March.

[4] In the 2008 Scottish Cup final, it was a Harris free kick that was headed home by Jim Thomson to make the score 2–2; Rangers ran out 3–2 winners.

[10] After being involved in Blackpool's pre-season fixtures,[11] Harris signed a two-year deal with the option for a further twelve months;[12] he arranged to share a flat in the town with fellow Scottish player Barry Ferguson.

[13] Unable to claim a regular place in Blackpool's first team however, Harris did not make his Football League debut for the Seasiders until April 2012.

[14] Blackpool loaned Harris to Nigel Clough's Sheffield United, playing in England's third tier, in January 2014; Blades defender Tony McMahon travelled in the opposite direction on a similar deal.

[23] In November 2017, Harris joined AFC Telford United of the National League North as cover for the club's regular left-back, who was cup-tied.