headshot of kostis kaffes

Konstantinos Kaffes

Assistant Professor of Computer Science

Kostis's research lies at the intersection of computer systems, artificial intelligence, and cloud infrastructure, aiming to enable both robust agentic AI deployments and next-generation cloud performance.

On the AI front, he is building the systems and data scaffolding necessary for the reliable, safe, and efficient operation of LLM agents. On the cloud computing front, he is working to make secure virtualized environments as fast as bare-metal servers. Bringing these two threads together, his research also explores how AI agents can automate performance engineering for cloud workloads.

Research Areas

  • Software Systems
  • Computer Architecture and Engineering
  • Networks and Distributed Systems
  • Cloud Computing
  • Networked and Distributed Systems
  • Operating Systems
  • Scalable Data Systems
  • Professional Experience
    • Assistant Professor of Computer Science, Columbia University, 2023-
    • Software Engineer, System Research Group, Google, 2022-2023
  • Honors & Awards
    • Google Machine Learning & Systems Junior Faculty Award, 2025
  • Education
    • PhD, Electrical Engineering, Stanford University
    • MS, Electrical Engineering, Stanford University
    • BS, Electrical and Computer Engineering, National Technical University of Athens