Raised on the U.S.-Mexico border, a region that heavily influenced his artistic, aesthetic, and conceptual ideas.

Images that have cultural, biographical and art historical references are carved and burned into the surface of the paintings, drawings, and woodblocks.
He received his Bachelor of Fine Arts from The University of Texas at San Antonio (1995), and his Master of Fine Arts from the University of Colorado at Boulder (1999). Armendariz is currently a Professor of Art at The University of Texas at San Antonio. In 2008, he received the Artpace Supplemental Travel Grant for travel to Mexico City, Mexico and in 2013 was an artist in residence at Kunstlerhaus Bethanien Berlin Germany.

In 2017 he was the first artist in residence at the DoSeum in San Antonio, TX; and in 2018 at the Anderson Ranch Residency in Snowmass Village, CO. He has exhibited both Nationally and Internationally.

He is in the permanent collections of San Antonio Museum of Art, McNay Art Museum, Denver Art Museum, Davis Museum, Wellesley College, Massachusetts and the Bush International Airport Houston Art Collection, and the Cheech Marin Collection