Mesias played for
Charlton Athletic from the ages of nine to 12 before spending six years with
Queens Park Rangers. On 20 July 2020, Mesias made his professional debut, coming on for the final three minutes in a 3–1 victory over
Loudoun United. On 1 February 2022, Mesias joined
Regionalliga Südwest side
SSV Ulm 1846 on a deal until the end of the season after a successful trial period. Mesias signed with
Forward Madison of
USL League One on 18 January 2023. He made his first appearance for the club on 26 March 2023, playing 72 minutes in a 1-1 draw at
Union Omaha. He scored his first professional goal on 27 May 2023, in a 2-1 win at
Union Omaha. On 26 December 2025, Mesias joined fellow USL League One side
FC Naples. ==Personal life==