After only training a month in the club's youth team, Riyandi was selected to be part of the Barito Putera squad that played in the 2016 Indonesia Soccer Championship A. At the age of 16, he became the youngest player to play in the highest level of Indonesian football when coach Mundari Karya played him as a starting goalkeeper in a 13 August 2016 match against Persib Bandung, in which he conceded two goals but also managed to thwart a penalty kick attempt. Unfortunately, his performance in four matches in that tournament was insufficient for him to win any playtime in the 2017 Liga 1 season.[3][4]
Riyandi was Barito's substitute goalkeeper in the 2018 Liga 1 and 2019 Liga 1 seasons, playing 15 games in two years. He earned the starting goalkeeper role in 2020 but only played twice because the 2020 Liga 1 season was canceled after three matches due to the COVID-19 pandemic. He resumed his starter status in the 2021 Menpora Cup, in which he was recognized again for stopping a penalty kick.[5]