Tam Nguyen

About Tam Nguyen

I am a Senior Machine Learning Engineer at LinkedIn, where I lead retrieval and ranking model development for the Notifications AI team. My work focuses on driving global engagement through advanced ML, resulting in significant lifts to DAU, Macrosessions, and CTR. My technical expertise spans multitask ranking, LLM-powered semantic candidate generation, and optimizing delivery through causal inference and reinforcement learning.I hold a Ph.D. in Computer Science from Auburn University, where my research sat at the intersection of Software Engineering and Machine Learning. I developed data-driven tools to automate code recommendation and bug detection by capturing patterns from massive source code repositories. A dedicated researcher, I have published over 15 papers in premier journals and conferences, including ICSE, FSE, and ASE.View my research: & hl=en

Experience

1. Senior Software Engineer, Machine Learning

   Linkedin

   Sep 2022 — Present

   Led the retrieval and ranking model development for the Notifications AI team. My work significantly improved key LinkedIn engagement metrics like DAU, Macrosessions, Click-through rate• Proposed and developed multitask ranking model for notifications• Extended the notification ranking model beyond clicks with downstream action modeling• Proposed and developed sequential multitask ranking model for notifications• Led the end-to-end development of a semantic candidate generation pipeline utilizing LLM-powered embeddings• Optimize the notification delivery with machine learning and causal inference• Developed off-policy evaluation methods for reinforcement learning policies used in notification decision models

Education

• Auburn University

  Doctor of Philosophy - PhD, Computer Science