David Diaz joins Circle Pharma as Senior Manager, Procurement leading the procurement functions for the company. Before Circle Pharma, David held various roles in the biotech industry for the past 20 years, including leading and managing procurement and supply chain functions in manufacturing, research and development. David brings expertise in strategic sourcing, supplier quality management, and regulatory compliance. Most recently at Lonza, his responsibilities were managing vendor relationships and leading procurement operations for the Hayward, CA site. P David received his B.S. in Business Administration with an emphasis in Management from San Francisco State University.