CV

General Information

Name Hanfei Yu (余涵非)
Email hanfeiyu [at] berkeley [dot] edu
Research Interests AI Systems, LLM Serving, RL Infrastructures, Serverless Computing

Education

  • Sep 2024 - Aug 2026
    Doctor of Philosophy in Computer Engineering
    Stevens Institute of Technology, Hoboken, NJ, USA
    • Advisor: Prof. Hao Wang
    • Dissertation: “Co-Designing Infrastructure, Runtime, and Model Serving for Efficient AI Systems”
  • June 2021 - Aug 2024
    Doctor of Philosophy in Computer Science (transferred)
    Louisiana State University, Baton Rouge, LA, USA
    • Advisor: Prof. Hao Wang
    • Transferred to Stevens Institute of Technology in 2024
  • Sep 2019 - Feb 2021
    Master in Computer Science and Systems
    University of Washington Tacoma, Tacoma, WA, USA
    • Advisor: Prof. Wes J. Lloyd
    • Thesis: “FaaSRank: Learning to Schedule Functions in Serverless Platforms”
  • Sep 2015 - July 2019
    Bachelor in Electronic Engineering
    Shanghai Jiao Tong University, Shanghai, China

Experience

  • Sep 2026 - Present
    Postdoctoral Scholar
    Sky Computing Lab, UC Berkeley, Berkeley, CA, USA
    Working with Prof. Ion Stoica on efficient AI systems and LLM infrastructure
  • June 2026 - Aug 2026
    Student Researcher at Seed Training Infra Team
    ByteDance Seed, Bellevue, WA, USA
    • Optimized sandbox snapshot techniques for efficient agent serving and replay
    • Designed and built production data feedback pipelines for evaluating Seed models on agentic rollouts
  • May 2025 - Aug 2025
    Research Intern at Efficient AI Group
    Microsoft 365 Research, Redmond, WA, USA
    • Characterized production workloads of OpenAI Copilot services
    • Designed and implemented efficient KV cache management solutions for multimodal LLM serving
  • May 2024 - Aug 2024
    Research Intern at Azure Research Systems
    Microsoft Azure Research, Redmond, WA, USA
    • Characterized production workloads of Azure container platforms
    • Designed new solutions to optimize the resource efficiency of container orchestration
  • Aug 2018 - Feb 2019
    Software Developer Intern at UEFI-BIOS Development Group
    Intel, Shanghai, China
    • Developed a cross-platform UEFI driver that analyzes network traffic with PCAP

Awards