Pouso came to
Danubio at the age of 13 from Club Atlético Bristol and made his professional debut in 1998. Pouso moved to Europe in August 2006 when he joined
Charlton Athletic of the
Premier League on a season-long loan from
Peñarol. He played his only league match the following month in a 1-0 home defeat to
Portsmouth, in which he was substituted after 57 minutes. Pouso was signed by
Iain Dowie, and was released alongside compatriot
Gonzalo Sorondo by new manager
Alan Pardew in February 2007. In February 2012, he joined
Gimnasia in
Argentina, where he played until his retirement in 2016. ==International career==