Gary Jardine became Edinburgh City manager in 2010, initially jointly with John Green. At the end of the 2015–16 season, Jardine guided Edinburgh City into the Scottish Professional Football League after defeating East Stirlingshire over two-legs, making Edinburgh City the first club to be promoted to Scottish League Two through the SPFL’s play-off system which was introduced for the 2014–15 season. After a difficult start to the club’s second season in the SPFL, Jardine resigned from his position on 30 September 2017, after a 3–0 loss left the side ninth in the league.
In December 2017, Jardine was assisting Civil Service Strollers manager Alex Cunningham by taking training sessions. Cunningham said in February 2018 that Jardine would become the team manager at the end of the season.
On 23 May 2018, Jardine was appointed new manager of Civil Service Strollers.
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