Javier Llaca Ojinaga is a Machine Learning Engineer at Pinterest, with prior experience in academia as a Teaching Assistant and Undergraduate Researcher at Columbia University in the City of New York. Javier also served as a Software Engineering Intern at Pinterest. Educational qualifications include a Master's degree in Music from Yale University, obtained between 2020 and 2022, and a Bachelor's degree in Computer Science and Music from Columbia University, earned from 2012 to 2016.