Mx (Mark) A. Matienzo is the Collaboration & Interoperability Architect in Digital Library Systems and Services at the Stanford University Libraries, serving as a technologist, advocate, and facilitator for cross-institutional projects. Prior to joining Stanford, Mark worked as an archivist, technologist, and strategist specializing in born-digital materials and metadata management, at institutions including the Digital Public Library of America, Yale University Library, The New York Public Library, and the American Institute of Physics. Mark received a MSI from the University of Michigan School of Information and a BA in Philosophy from the College of Wooster, and was a recipient of the Emerging Leader Award from the Society of American Archivists in 2012.