Daniel Villareal

I build AI-powered SaaS and scalable web apps with Rails and React.

I’m a Software Engineer with experience across e-commerce, animation, travel, sales, and CRM, working with a wide range of stacks: React, Rails, Swift, Kotlin, MongoDB, and PostgreSQL. I enjoy picking up new tools quickly and applying them to solve real problems.

I care about writing better software and constantly improving as an engineer. Right now, my main interests are:

  • Leveraging LLMs to write cleaner, more efficient code
  • Deepening my knowledge of system design
  • Learning Go and applying it to backend work
  • Exploring Rust when time allows

Always learning, always building.

Recent Projects

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documentalll

Python CLI that batch-generates Markdown docs with LLMs

Python AI CLI LLM
github →

Jobblai

Ruby on Rails application that helps job seekers keep track of roles they are pursuing and produce tailored application materials with the help of a local or remote large language model (LLM).

Rails Ruby Postgres Sidekiq LLM AI
github →

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