Joined Academy: Under-16s
Turned Professional: May 2017
Professional Debut: 9th November 2016 vs Hartlepool United (A)
Gillam made his first-team debut as a second-year scholar, a game in which he scored, against Hartlepool United in the Checkatrade Trophy.
He earned a professional contract and also scored on his first start for the club away at Charlton Athletic in November 2017.
The striker did enough to earn himself a new two-year contract, keeping him at the Crown Oil Arena until the summer of 2020.