Edgar Martinez studied civil engineering at Columbia University. Before coming to Preston High School, he did work for several engineering firms including Skanska USA and John P. Picone, Inc. among others. He is an E.I.T. in New York State.
He has taught physics and various courses and levels of math. Currently, he is the Assistant Principal of Administration working in the Office of Student Life, chairperson of the Mathematics Department and an instructor for Engineering Tomorrow, an organization that helps increase student interest and awareness in post-secondary engineering educational pursuits.