Méndez began his senior career with CD Universitario in his native Panama, making his league debut for the club on 12 February 2017 in a 1–0 victory over Árabe Unido.[3]
DAC Dunajská Streda
In September 2019, Méndez moved to Slovak club DAC on a two-year loan. During his loan, Méndez had also appeared with DAC's 2. Liga affiliate ŠTK Šamorín. In January 2021, Méndez requested his release from the club due to family reasons with the intent to continue his career in Panama.[4]