John Callahan is a strategic sourcing and supply chain executive with extensive senior management experience spanning both start-ups and multi-billion dollar companies. They led operations and supply chain strategies at notable organizations such as Facebook and JDSU, overseeing significant global supply chain designs, contract negotiations, and supplier relationships. Currently, John serves as the Senior Director of Procurement at Western Digital. They hold degrees in Business Administration from Columbia Southern University and attended Notre Dame de Namur University.
This person is not in any teams
This person is not in any offices