John Lim

John Lim is an accomplished data scientist and machine learning engineer with extensive experience in various domains, particularly in computer vision and machine learning applications. John Lim has worked at Palo Alto Networks as a Data Scientist, focusing on survival analysis and churn prediction. Additionally, John Lim has contributed to research as a Graduate Research Assistant at the University of North Carolina at Chapel Hill while pursuing a PhD in Computer Vision. John Lim transitioned to a Machine Learning Scientist role at Salesforce, specializing in recommendation systems, LLMs, semantic search, and video generation. Currently, John Lim holds the position of Machine Learning Engineer at Meta, focusing on ad ranking for Instagram. Educational qualifications include a Master of Science in Computer Science from the University of North Carolina at Chapel Hill and a Bachelor’s Degree in Computer Science from Villanova University. Prior work experiences include roles as an Operations Intern at Base Entertainment Asia, an R&D Software Engineer intern at Kitware Inc., and a Research Assistant at Florida International University.