Marchiori began his career with Gimnasia y Esgrima.[1][2] He featured in two fixtures in Torneo Argentino B during the 2013–14 season, which ended with promotion to the third tier for 2014.[2] He didn't make an appearance in either of the following three campaigns, which were spent in Torneo Federal A either side of a stint in Primera B Nacional.[1][2] Sixteen appearances arrived across 2016–17 and 2017–18, the latter ended with the club being promoted back to tier two.[1][3] Marchiori subsequently made his professional debut on 26 August 2018 during a 2–1 victory over Temperley.[1][4]
On 2 October 2020, Marchiori joined Atlético Tucumán on loan until the end of 2021.[5] At the end of December 2021, Atlético Tucumán bough him free and signed him on a permanent contract.[6]