Jake Li

Hi, I'm Jake. I study Mechanical Engineering and Computer Science at Columbia. Check out my hardware and software projects below!

Go ahead, knock a letter over. The arm cleans up after you.

I am currently working on...

  • Quadruped RobotPersonal projectSep 2026 to now

    Building a sub-$300 robot dog, with eight bus servos driven by forward and inverse leg kinematics on a Raspberry Pi

  • DitecT Lab, ColumbiaRobot Learning Research EngineerSep 2026 to now

    Post-training diffusion vision-language-action models to drive a scaled autonomous vehicle fleet from a Jetson Orin Nano

  • Costream (YC S25)AI/ML Research EngineerNov 2025 to now

    Analyzing human preference data for post-training audio model infrastructure

  • Columbia Plasma Physics LabManufacturing Engineerlab profile Feb 2025 to now

    Building the CUTE tokamak, designing its reactor body in Fusion 360 and machining the connectors that carry 10,000 Amperes to its coils

  1. GRAFT++
    GRAFT++ - AI Collusion Research Sprintpaper What LLM seller agents do when they learn they are being watched.
  2. CUTE Tokamaklab profile Structure, current paths and vacuum for a university fusion device.
  3. Columbia Space InitiativePropulsion fluids on the rocketry team: a PID-driven ball valve that throttles liquid oxygen, and a subscale air rig that tests the electronic regulator under the same control software.
  4. Quadruped RobotA sub-$300 dog that trots, built on a five-bar leg reduced to 2-link IK.

Fun fact: