Meet Our Team


Gregorio Rojas

Head Instructor & CTO

Has been in the software development field across a variety of industries since 1999. Previously he was CTO and co-founder of an online real estate listings site, MySocalListings, a Director of Development at SFW, a SAAS enterprise software startup and most recently, lead developer of the Monetization team at MySpace.

Liliana Monge


Has over eleven years of economic development expertise, and is highly attuned to developing and managing federal funds. Previously, Ms. Monge was a redevelopment consultant at The Ometeotl Group, a redevelopment consulting firm that specializes in working with public agencies. She is a member of the Urban Land Institute, the International Council of Shopping Centers, and the California Redevelopment Association-Latino Initiative.

Full Time Instructors

Aaron Gibson

Sr Developer/Instructor

Has been writing code professionaly since 2003. Currently his focus is on RESTful APIs built with Play Java framework, PostgreSQL, ElasticSearch and MongoDB among other things.

John Darragh

Sr Developer/Instructor

Has extensive experience developing business applications for the entertainment, real estate and insurance industries using Microsoft technologies. My current goal is to master the latest Microsoft User Interface technologies, apply this knowledge to practical business application development projects, and share this knowledge through development and instruction of Sabio courses.


Chantelle Silveira

Vice President, Product Management at Ranker
Chantelle began her career at, where she launched the world’s first consumer-facing online credit reporting and scoring platform. After the sale to the credit bureau, Experian, Chantelle helped build the social media titan, MySpace, as head of Photos and Games, two of the most highly trafficked areas of the site. She later returned to her e-commerce roots at Shopzilla, where she built the lead-generation company’s first B2C deals platform. Chantelle is now Vice President, Product Management at Ranker. She holds a BS in Business from the University of California at Berkeley and an MBA from the University of California at Los Angeles.