Born in Panama, Mosquera began his career with Panamanian club C.D. Plaza Amador. He graduated from Plaza Amador's youth setup, and made his senior debut during the 2021 season. On 8 May 2021, Mosquera made his league debut in a 2–0 loss against Alianza F.C. at Estadio Javier Cruz.[1]
During February 2022, Mosquera traveled to Spain to trial with Levante UD.[2] During September 2022, Mosquera had another trial, this time with Brazilian power Grêmio.[3]
On 5 April 2023, Mosquera scored his first goal as a professional in a 1–1 draw with Potros del Este.[4]
Loan to New York Red Bulls II
On 22 July 2023, it was announced that Mosquera was loaned to Red Bulls II for the remainder of the 2023 season, their first in MLS Next Pro.[5] He made his debut for the club on 22 July in a 0–2 victory against FC Cincinnati 2 at NKU Soccer Stadium, with Mosquera assisting on New Yorks second goal.[6][7]