Sean-Michael Callahan is an experienced executive specializing in procurement and strategic operations. Currently serving as VP, Head of Strategy, Planning & Operations at Lennar since March 2025, Sean-Michael provides strategic leadership to the Lennar Technology Group's VMO, PMO, and Intake Management. As an Advisor at Connect.GenAI since September 2024, Sean-Michael focuses on innovating procurement through Generative AI. Prior roles include Sr. Director of Indirect Procurement at Tyson Foods, where leadership was directed toward enhancing supplier relationships and business partnerships, and Director of Global Indirect Procurement at Takeda, overseeing consulting strategy and procurement categories. Sean-Michael also contributed to the growth of The NiVACK Group as Principal, leading efforts in Indirect Procurement advisory services. Educational credentials include a Bachelor of Science in Marketing from Santa Clara University.
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