He began his youth career with East York Dragons before switching to Unionville Milliken SC, where the talented youngster was scouted and recruited to the TFC Academy that competed in the Canadian Soccer League.

[11] In summer 2017, Aparicio signed with Spanish Segunda División B club CD Izarra and made 20 league appearances that season.

[11] In summer 2018, Aparicio signed with Spanish Tercera División club CD San Roque de Lepe and made 11 appearances, scoring one goal.

[15] However he also became the first player to be red carded in the Canadian Premier League, after receiving a second caution for a deliberate handball in second-half stoppage time.

[18][19] On March 22, 2024, Atlético Ottawa announced the signing of the Toronto-raised midfielder, ahead of the 2024 Canadian Premier League season.