Born in Los Angeles, California, Dueñas began his career at the Los Angeles FC youth academy, being part of the club's inaugural under-12 side.
[2][3] On July 8, 2020, Dueñas became one of the first three homegrown signings for Los Angeles FC, alongside fellow Mexican-American teammates Christian Torres and Tony Leone.
[3] Dueñas made his professional debut for Los Angeles FC on October 14, 2020, in a Major League Soccer match against Vancouver Whitecaps.
He came on as a 71st-minute substitute for Dejan Jakovic as Los Angeles FC were defeated 1–2.
[4] Houston claimed Dueñas off of waivers following the 2024 season, and in January 2025 signed him to a one-year contract with club options for the following three years.