Toronto FC Aparicio signed his first professional contract in 2013 at the age of 17 years old, becoming the eighth
TFC Academy graduate to the professional team. He appeared in two midseason friendlies for Toronto FC in 2015, against
English Premier League teams
Manchester City and
Sunderland.
Loan to Wilmington He was loaned out in early 2014 to
USL PRO side
Wilmington Hammerheads after the two clubs formed a partnership. He was loaned alongside
Quillan Roberts and
Daniel Lovitz. Aparicio made his debut for Wilmington in the season opener on April 5, 2014, against the
Harrisburg City Islanders.
Loan to Toronto FC II Aparicio was loaned to
Toronto FC II on March 20, 2015. He made his debut against the
Charleston Battery on March 21. Toronto FC announced on December 1, 2015, that Aparicio would not be returning to the team for the
2016 MLS Season.
Órdenes On August 15, 2016, Aparicio signed with
SD Órdenes on a one-year deal, making 30 league appearances and scoring four goals.
Izarra In summer 2017, Aparicio signed with Spanish
Segunda División B club
CD Izarra and made 20 league appearances that season. The 2019 season was the first in both Canadian Premier League and York9 FC history, and before it started Aparicio was named the first-ever captain for York9. Aparicio took part in the
Canadian Premier League's first game in history, a 1–1 draw in Hamilton, Ontario against
Forge FC and assisted the first ever Canadian Premier League goal in the third minute of the match. 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.
Pacific FC On 6 November 2020, Aparicio signed with fellow CPL side
Pacific FC. He officially left the club in January 2024, having scored ten goals and 11 assists in 78 appearances between all competitions for the club.
Atlético Ottawa On March 22, 2024,
Atlético Ottawa announced the signing of the Toronto-raised midfielder, ahead of the
2024 Canadian Premier League season. Aparicio was part of the squad which won Ottawa's first CPL title, providing the assist for the winning goal in extra time during the
final on November 9, 2025. on December 23, 2025, it was announced that he had signed a two-year contract extension with the club. ==International career==