Sergio Aguirre was born and grew up in Sinaloa State, Mexico.
After attending the University of Sinaloa, Sergio studied English Language at the University of California Los Angeles. Following his English studies, he moved to Mexico City to study Public Accounting and worked for General Foods Co. for a few years in the accounting field.

He moved to La Paz, Baja California Sur in 1980 where he earned a Master Degree in Business Administration. Later he studied Modern Languages at the University of Baja California Sur and specialized in Spanish Language. He is a founder member of the "Foreign Languages Teachers of Baja California Sur", an association that promotes the study of foreign languages. Sergio has owned and operated a number of businesses over the years but is currently engaged full time in teaching Spanish. He is married and lives in La Paz.