Georgios Alexopoulos

PhD Candidate, Department of Business Administration, University of Athens, Greece

I am a doctoral candidate at the Department of Business Administration of the University of Athens, under the supervision of Assistant Professor Dimitris Mitropoulos. I also work as a Systems Architect at the Greek National Infrastructures for Research and Technology (GRNET). Before joining the University of Athens, and after finishing my undergraduate studies in Electrical and Computer Engineering at NTUA, I was a Systems/Software Engineer at Arrikto, where I focused on ML systems.

You can find a short CV here.

My research lies at the intersection of systems and software, with a focus on improving the reliability of computer systems as well as the utilization of traditional and heterogenous computational resources.

I’m currently trying to improve the reliability of Infrastructure-as-Code (IaC) software.

news

Jun 23, 2025 Our paper “PyXray: Practical Cross-Language Call Graph Construction through Object Layout Analysis” has been accepted at ICSE 2026.
Aug 23, 2024 Our paper “When Your Infrastructure is a Buggy Program: Understanding Faults in Infrastructure as Code Ecosystems” has been accepted at OOPSLA 2024.

Publications

2026

  1. ICSE’26
    PyXray: Practical Cross-Language Call Graph Construction through Object Layout Analysis
    Georgios Alexopoulos, Thodoris Sotiropoulos, Georgios Gousios, Zhendong Su, and Dimitris Mitropoulos
    In Proceedings of the 48th International Conference on Software Engineering 2026
    PDF

2024

  1. ICSE’24
    nvshare: Practical GPU Sharing without Memory Size Constraints
    Georgios Alexopoulos, and Dimitris Mitropoulos
    In IEEE/ACM 46th International Conference on Software Engineering: Companion Proceedings 2024
    PDF Code
  2. OOPSLA’24
    When Your Infrastructure is a Buggy Program: Understanding Faults in Infrastructure as Code Ecosystems
    Georgios-Petros Drosos*, Thodoris Sotiropoulos*, Georgios Alexopoulos, Dimitris Mitropoulos, and Zhendong Su
    In Proceedings of the ACM on Programming Languages 2024
    * Both authors contributed equally
    PDF

PC Member

  • 2023: MSR (Junior PC)