Prior to joining the SBDC, Guillermo worked five years in the Organization of American States in Washington DC. At the SBDC, Guillermo is the lead developer of the design, development and maintenance of critical applications that the SBDC relies on for its day-to-day operations. In 2015, Guillermo was named Support Staff of the Year.

In 2017, Guillermo oversaw the change from all on-premise services at the SBDC to the cloud. In 2020, he was a key player in integrating the new PSO registration system with the SBDC internal systems to support the Continuing Education.