Nikos Pagonas

Hi! I am Nikos, a PhD student in Computer Science at Columbia University, where I am a member of DAPLab, advised by Prof. Kostis Kaffes.

My research focuses on improving the performance and efficiency of agentic serving. I build systems that exploit workflow structure and runtime characteristics to optimize scheduling, resource allocation, and model routing.

In Summer 2025, I was a Student Researcher at Google, where I worked on Cortex, a workflow-aware agentic serving system, supervised by Prof. Arvind Krishnamurthy.

Before joining Columbia, I was a member of the ATLAS research group at Brown University, where I worked on PaSh, a Linux Foundation project, advised by Prof. Nikos Vasilakis.

I received my Master’s degree in Electrical and Computer Engineering from the National Technical University of Athens (NTUA), where I was advised by Prof. Georgios Goumas.