Valdez Chamorro had youth spells with Las Lomas de Guernica and Lanús.[2] He began his senior career with Argentine Primera División side Lanús in 2013.[1][3] His professional debut came on 20 May in a goalless tie with Tigre, which was one of two games during 2012–13.[1] In 2013–14, Valdez Chamorro scored the first two goals of his career after scoring twice in a 1–4 win over San Lorenzo on 12 April 2014.[1][4] In his first four seasons with Lanús, he scored three goals in forty-two appearances in all competitions.[1] In February 2016, Valdez Chamorro joined Primera División team Gimnasia y Esgrima on loan.[5][6]
He remained with Gimnasia y Esgrima for two campaigns but made just four appearances.[1] Valdez Chamorro returned to Lanús in June 2017, prior to joining Nueva Chicago of Primera B Nacional on loan on 6 January 2018.[1][7] He made his debut for Nueva Chicago on 3 February during a win against Deportivo Riestra.[1]