William Bartholomew

William Bartholomew (he/him) is a Director of Public Policy in Microsoft’s Office of Responsible AI. His public policy advocacy benefits from over a decade of experience in designing, implementing, and operating software supply chains used by tens of thousands of developers. He brings his relentless focus on reducing friction to standards development, open source, and public- and private-sector working groups globally.
Contributions by William Bartholomew
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Passing the Test: Breaking Down the When, Where and How of Testing AI Systems
Speaker at IAPP AI Governance Global North America 2025