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JH
Career profile

Justin H Lee

ML Research Engineer @ Cactus | Incoming @ OpenAI | CS @ UCLA

San Diego, California, United States

Career path.

  1. OpenAI

    Incoming Member of Technical Staff Intern

    Dec 2025 - Present
  2. Cactus (YC S25)

    ML Research Engineer

    Oct 2025 - Present
  3. Bruin AI

    AI Consultant

    Oct 2024 - Present
  4. Stealth AI Startup

    Back End Developer

    Jun 2025 - Sep 2025
  5. UCLA

    MARS Lab Research Intern

    Nov 2024 - Jun 2025
  6. Scoop Solar

    Software Engineer Intern

    Jan 2024 - May 2024
  7. University of California San Diego

    AI Interpretability Research Intern

    Jun 2023 - Jan 2024
  8. Massachusetts Institute of Technology

    Embedded Security Intern

    Jun 2023 - Aug 2023
  9. The University of Chicago

    DSA Intern

    Jun 2022 - Aug 2022