Drafted into the Leyton Orient first team squad during early 2016, Pollock went on a work experience loan to Isthmian League club Wingate & Finchley on 4 March 2016.[3]
Pollock made his Orient first team debut on 30 April in the starting lineup for the final home match of the season, against Mansfield Town.[4] Pollock impressed in his opening performance, being voted Man of the Match and subsequently starting in the following match against Yeovil, in the final match of the season.
Following a short-term loan spell at National League South side Wealdstone,[5] Pollock joined Isthmian League Premier Division side Leatherhead on a one-month loan in December 2017.[6] He went onto feature eleven times before making his spell permanent, following his release from Leyton Orient.[7]