Jayr is a Professor at the University of Santo Tomas (UST) Faculty of Civil Law and San Sebastian Recoletos-College of Law where he teaches Commercial Law subjects (Data Privacy, Intellectual Property, Insurance, Transportation, and Competition Law). He is also a Professor at the UST Graduate School of Law where he teaches the course “Fintech and Other Commercial Intersections with Emerging Technologies.” Jayr is also an MCLE lecturer on the subject of data privacy and an accredited lecturer of the Center for Global Best Practices.