Hao Yan

Curr: San Francisco, CA

Currently

  • Founding Engineer @ TraceRoot.AITraceRoot.AI ( Y CombinatorYC S25) — building infrastructure that lets AI agents debug and fix themselves
  • Software Engineering @ McMaster UniversityMcMaster University ('29)
  • Building Lumen — probing what post-training actually does inside open-weight LLMs
  • Embedded & Controls Software Lead @ McMaster Exoskeleton
  • AI/ML @ McMaster EcoCAR
  • Reading Neural Networks and Computing Learning Algorithms and Applications by Tommy W. S. Chow

Previously

  • Autonomous & Mechanical Engineer @ VEX Robotics Team 3388NVEX Robotics Team 3388N
    • 6th of 200 teams at Canada's largest VEX tournament; built full autonomous nav stack in C/C++
  • Robotics Coach @ Western MechatronicsWestern Mechatronics
  • Created Neurinese — Grammarly/Copilot for handwritten Chinese
  • International BaccalaureateIB Diploma Graduate