My first name is pronounced “Day-Hiyok”
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I am an Assistant Professor of Computer Science at the University of Texas at Austin. Prior to joining UT Austin, I was a Senior Researcher in the Office of the CTO in the Azure for Operators group and Microsoft Research Redmond.

My research interests lie at the intersection of systems and networking, with a focus on building software systems that improve the performance, efficiency, and resilience of data- and network-intensive applications running on emerging programmable infrastructures (e.g., programmable switches, NICs, and xPUs). I have also worked on various topics in security and wireless systems.

I received my PhD in the Computer Science Department at Carnegie Mellon University, advised by Vyas Sekar and Srinivasan Seshan. My PhD thesis introduced new abstractions and runtime systems to enable resilient and elastic in-network computing. My work was in part supported by Microsoft Research PhD Fellowship. Prior to joining CMU, I worked at KAIST as a research scientist. Before then, I completed a BS and MS degrees in Computer Science and Engineering from POSTECH, South Korea.