Nikos Pagonas
I am a second-year PhD student in Computer Science at Columbia University and member of DAPLab, advised by Prof. Kostis Kaffes.
My research is supported by the Columbia University Presidential Fellowship, the A.G. Leventis Foundation, and a Gerondelis Foundation Graduate Study Scholarship.
I am interested in improving the performance and efficiency of agentic serving. I build systems that exploit workflow structure and runtime characteristics to optimize model routing, scheduling, and resource allocation.
This summer, I am working as a Research Intern at Microsoft Research, supervised by Sharad Agarwal.
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.
News
| Apr, 2026 | Our position paper on Agentic Data Environments appeared in the IEEE Data Engineering Bulletin! |
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| Aug, 2025 | Cortex made it into the SOSP 2025 Workshop on Systems for Agentic AI! |
| Aug, 2025 | I was awarded the A.G. Leventis Foundation Scholarship! |
| Jun, 2025 | I was awarded the Gerondelis Foundation Scholarship! |
| May, 2025 | I joined Google as a Student Researcher! |
| Sep, 2024 | I was awarded the Columbia Presidential Fellowship! |
| Sep, 2024 | I started my PhD in Computer Science at Columbia University! |
| Jun, 2024 | I received my Master’s degree in Electrical and Computer Engineering from NTUA! |
| Sep, 2023 | I joined Brown University as a Student Researcher! |
| May, 2023 | I started working on the PaSh project! |
Selected publications
2026
- arXiv 2026
- arXiv 2026
- IEEE DEB 2026