[citation needed] He studied economics and at the Free University of Colombia and marketing at the Eafit.

Juan Began his life as the youth municipal councillor elected with 2,807, and re-elected with 5,841. where he promote the environment and animal wellness.

In 2015 Gallo ran for mayor of Pereira winning with 126,075, supported by citizens and partisan coalition.

On 28 March 2019, he was invited as a speaker to the Tax and Business Competitiveness forum organized in Ibagué, where authorities met in academic and economic matters.

[9][10] He was suspended by Fernando Carrillo Flórez from the public ministry of colombia for three months without the right to remuneration, after he and his Kontacto system[11] were denounced for constraining the voter by the engineer Luis Carlos Rúa, who show before the Attorney General of Colombia and to the “Procuraduría General de la Nación” which prevented him from finishing his term as mayor of the city.