Santiago is lawyer, activist and co-founder of a NGO that accompanies parents with sexually diverse children. He has been researcher and consultant in sexual education with sexual diversity and genre identity. Asides, he has worked in control, inspection and monitoring to non-profit organizations, and for the administration of law enforcement and constitutional law. He also has been professor on research and sexual diversity at the Envigado University. By these days he works at Dejusticia as Resarch Assistant at the Gender Area.