He competed for Uruguay at the 2023 Rugby World Cup and for the Uruguayan sevens team at the 2024 Summer Olympics.
Amaya was born in Argentina and played at Hindú Club as a child, but his family relocated to Uruguay due to his father's job when he was nine years old.
[2] Amaya signed for Súper Liga Americana de Rugby side Peñarol ahead of the 2020 Súper Liga Americana de Rugby season, before re-signing ahead of the 2021 and 2022 seasons.
[8] In 2022, Amaya competed for Uruguay at the Rugby World Cup Sevens in Cape Town.
[9][10] In 2023, He played for the Uruguayan fifteens team at the 2023 Rugby World Cup.