Prior to that, he was a Staff Scientist with the Computer Science and Mathematics Division at Oak Ridge National Laboratory. His research interests include Big Data in data-intensive science, high-performance computing, and high-speed networking. In particular, he has done extensive research on scalable data storage and analysis solutions on emerging architectures for HPC applications. His sole research products have been adopted by more than twenty HPC applications in fusion energy, high-energy physics, cancer research, quantum physics, material science, turbine engine design, weather modeling, and etc., for production purposes. He is currently leading and co-leading a few research projects funded by Department of Energy and National Science Foundation.