Los Angeles Staff Principal Profile SIATech Los Angeles is led by Mr. Jose Estrada. Mr. Estrada began working with SIATech in 2007. He worked as an instructional assistant, and then became a social studies teacher at the SIATech in Long Beach. In 2014, Mr. Estrada became the Site Leader of the Los Angeles location. Mr. Estrada grew up in South Central, Los Angeles and Bell Gardens, CA. Prior to working for SIATech, he volunteered to educate students of immigrant parents in the small farm town of Pescadero, CA. His love of education grew during that time, and he decided to follow a career in education. He received a B.A. in History from UCSC, Teaching Credential from CSULB, his M.Ed. and an Administrative Credential from National University. His passion and dedication to education are a great fit for SIATech Los Angeles.