Zadok Villarreal
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About

Zadok Villarreal

Mechanical engineering senior in San Antonio. I build robots, quantitative models, and small apps I actually use.

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I'm a senior in mechanical engineering at UTSA. My work sits at the intersection of hardware, data, and software — I'm at my best when a project crosses all three. The portfolio is the honest version of what I actually do: an autonomous robot, a quantitative model, a couple of team apps people actually use, and a P&L app I built for my dad.

I orchestrate ML and LLMs the way a mechanical engineer does — as one component in a system that has to actually work. The interesting question isn't whether the model is fancy; it's whether the loop closes.

How I work

  • Build the thing. Most ideas only get real once they're shipped.
  • Numbers are a workflow. Don't carry them in your head.
  • Walk-forward beats backtest. The honest test is the only one that counts.
  • Small tools you use beat big tools you don't.

Stack

  • Python · NumPy · pandas · SQLite
  • React · Next.js · TypeScript · Tailwind
  • FastAPI · Supabase · Vercel
  • ONNX · OpenCV · custom firmware (C/C++ on AVR/RPi)
  • MATLAB · Excel for fast modeling

Timeline

  1. 2026
    • ADDRAR IV in final demo phase — 76.9% TPR / 4.2% land-FPR.
    • CS2 Formula v1 era reached 69.6% WR / +32.9% ROI on 79 OOS bets.
    • Built Ingram Park — an order-accuracy app for a Chick-fil-A team.
    • Nethaul shipped to TestFlight — my dad's trucking P&L app.
    • Locruit alpha in private use with reply tracking.
  2. 2025
    • Started ADDRAR IV — vision, tracker, controller, firmware end to end.
    • First CS2 model versions (V0–V3).

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