[4] Mejía won the silver medal in the women's 81 kg event at the 2021 Pan American Weightlifting Championships held in Guayaquil, Ecuador.

[6] In the same year, Mejía competed in the women's 81 kg event at the World Weightlifting Championships held in Bogotá, Colombia.

A few months later, she competed in the women's 81 kg event at the 2023 World Weightlifting Championships held in Riyadh, Saudi Arabia.

[8] In October 2023, Mejía won the silver medal in the women's 81 kg event at the Pan American Games held in Santiago, Chile.

[2][3] In February 2024, Mejía won the silver medal in the women's 81 kg event at the Pan American Weightlifting Championships held in Caracas, Venezuela.