[4] In the play-off semi-final match, against Airdrie United on 12 May 2012, he was sent off by referee Steven McLean for an over the ball challenge on Ricki Lamie.
Longridge scored his first senior goal in a 4–2 victory over Forfar Athletic on 10 January 2015.
In June 2018, Longridge signed for Dunfermline Athletic on a two-year contract.
[6] After one season with Dunfermline, he signed a two-year contract with EFL League Two club Bradford City for an undisclosed fee.
[8] On 19 January 2021, Longridge left Bradford City by mutual consent,[9] and returned to Livingston.