Cathy Q.

Cathy Q. is a Senior Machine Learning Engineer at Pinterest since 2023, specializing in ads ranking using AWS and PyTorch. Previously, from 2021 to 2023, Cathy held a similar role at Twitter, focusing on ads ranking with GCP and TensorFlow. From 2019 to 2021, Cathy served as a Machine Learning Scientist III at Expedia Group, contributing to search ranking and developing end-to-end machine learning pipelines using AWS and Spark/Hive. Earlier experience includes work as a Machine Learning Engineer at Terawe Corporation, where Cathy independently built a machine learning application for medical image classification and conducted sentiment analysis on Twitter data. Cathy earned a Doctor of Philosophy (Ph.D.) from the University of Pennsylvania, an MBA from Questrom School of Business at Boston University, and a Bachelor of Science (B.Sc.) from the University of Science and Technology of China.