The Senior Director, Supply Chain leads all aspects of strategic sourcing, category management, procurement operations, and supplier relationship management across approximately $3 billion in annual addressable spend. This executive role drives enterprise-wide cost savings, risk reduction, operational efficiency, and supplier performance improvement while enabling long-term value creation and supporting Waste Management's growth objectives. The Senior Director will oversee a distributed organization of 3 direct reports and 40 professionals across the U.S. and Canada. This leader is responsible for implementing best-in-class procurement systems, driving consistency and compliance, developing strategic supplier partnerships, and fostering a culture of innovation and accountability across the function.