John Callahan is an experienced Hardware and Software System Engineer with a strong background in the information technology and print services industry. They have worked as a Partner at All Systems Integration since 2017 and have held various roles, including Systems Engineer and IT Manager. Previously, John was a Prepress Systems Administrator at Dynagraf and a Lead Operator - Electronic Prepress at United Lithograph. John studied at Wentworth Institute of Technology from 1986 to 1988.
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