domi lizarraga

domi lizarraga

dominiclizarraga@hotmail.com
Appalachians Sep 2024

👋 Hey, I’m Dominic, an AI engineer and software developer. I build applications powered by machine learning, combining models and data with the engineering needed to make them useful and reliable.

I have 5+ years of experience building sturdy, high-performance web and mobile applications with Ruby on Rails, Hotwire, PostgreSQL, and automated testing.

I’ve recently joined the data science team at my current job, expanding into AI and consulting on projects that connect data, models, and production software. I use AI agents throughout my development workflow and bring the same object-oriented design, test-driven development, and maintainability principles that have shaped my software-engineering career.

I recently completed Le Wagon’s Data Science & AI bootcamp in Tokyo, where I worked through the machine learning lifecycle. My team and I built an app that personalizes book lists using semantic search and reading difficulty levels. I’m continuing to improve that product while working on a freelance project involving AI agents, retrieval-augmented generation (RAG), and evals.

This site is my working notebook: projects in edtech and fintech, book notes, and lessons from my 2026 machine learning bootcamp, Object-Oriented Design workshop, and Test Driven Design workshop. Writing helps me understand what I’m learning—and gives me something to return to when I forget.

You can find me on LinkedIn and GitHub, read my resume, or drop me a line.

Tech stack

  • Python
  • pandas / NumPy
  • scikit-learn
  • Feature engineering
  • Model evals
  • TensorFlow / Keras
  • FastAPI / Docker
  • Rails / Hotwire
  • PostgreSQL
  • RSpec / TDD

Languages

  • 🇺🇸 English — Professional
  • 🇲🇽 Spanish — Native
  • 🇩🇪 German — Basic