Short Bio

Chaosheng Dong is a Machine Learning Engineering Manager at Pinterest. Previously, he was a Tech Lead Manager at Amazon until September 2026. He received his Ph.D. in Operations Research from the University of Pittsburgh in 2020, under the supervision of Prof. Bo Zeng. He earned his B.S. in Mathematics and Applied Mathematics from the University of Science and Technology of China (USTC) in 2014.

His research interests span multi-objective optimization, multi-task learning, learning to rank, parameter-efficient fine-tuning, large language models, and generative retrieval, with applications in e-commerce search and recommender systems.