Soto has worked with Robert Wilson since 1997 as a performer, designer and assistant on numerous productions and installations in the US and Europe and at Wilson’s Watermill Center.
Soto’s Girlmachine, created in collaboration with Charles Chemin and architect Christian Wassmann, premiered at Performa 09; Pig Pig Pig (2010) was performed at the Moscow Museum of Modern Art. In 2011, he created a short work featured in an evening of performance curated by Robert Wilson at the Guggenheim Museum.
In 2008, Soto was artist-in-residence at Kampnagel, Hamburg; in 2012 at Willem de Kooning’s studio in Springs, NY. He recently designed the costumes for the revival of Wilson’s and Philip Glass’ Einstein On The Beach; and Zinnias by Wilson and Bernice Johnson Reagon and Toshi Reagon. Soto is featured as the young Marina in Robert Wilson's "Life and Death of Marina Abramovic", alongside Willem Dafoe, Antony Hegarty and Marina Abramovic.