Personal details

Ethan R. - Remote full-stack developer

Ethan R.

Sr. Software Engineer
Based in: 🇲🇽 Mexico
Timezone: Central Time (US & Canada) (UTC-6)

About

10+ years of experience, driven by a startup mindset and a passion for building things from the ground up. I’ve launched multiple applications, designed reliable systems, and delivered products end-to-end in fast-moving environments. I thrive on turning ideas into working solutions, balancing speed with thoughtful architecture.

Work Experience

Senior Software Engineer
SardineAI | Aug 2025 - Present
TypeScript
React
Golang
AWS

- Joined as part of the new Dashboard Team

- Design the company Investigator Tool (Chrome Extension, Product)

Founding Engineer
Charta Health | Nov 2023 - Aug 2025
TypeScript
React
Jest
Web3
Next.js
Tailwind css
  • Joined as First Engineer, built the v0 from the ground up, powering $600K ARR.
  • Key contributor in driving the company to a $23M Series A raise reaching a total of $30M founding
  • Built and deployed a Chrome extension to run AI analyses directly in the browser.
  • Implemented an HTTP AI server capable of handling thousands of analyses per day.
  • Developed a robust deployment pipeline with AWS CodeBuild and GitHub Workflows, improving release speed and stability.

Projects

Pa'donde
2014
HTML/CSS
Node.js
Meteor
JavaScript
Padonde was a platform where local restaurants would post their daily promotions and discounts, people would be able to see the promotions for a certain day of the week, and also have a view of the 7 days of the week to plan their visit ahead.

Education

Universidad Tecnologica de Tamaulipas Norte
Bachelor's degree・Computer Science
Feb 2010 - Apr 2015

Certifications & Awards

CSS for JS Developers
https://css-for-js.dev/ | Apr 2023