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Ernesto Calderon's work experience includes a role as a Senior Solutions Engineer - VOIP at Granite Telecommunications since 2018. Before that, they worked as a North America Sales Engineer and Senior Support Engineer at Grandstream Networks starting in 2008. Prior to that, they served as a Project Manager at NCR Corporation from 2003 to 2008. Additionally, they worked as a Voip Engineer at American Telecom Services from 2000 to 2003.

Ernesto Calderon has pursued their education in Information Technology Project Management at Northeastern University. The specific start and end years of their enrollment are not mentioned.