CM
Cristhian at NJIT graduation
Cristhian at Universal Studios
Cali, Colombia at night

Hi, I'm Cristhian — a mobile developer based in the New York City metropolitan area. I craft fast, beautiful apps with React Native, Expo, and Swift.

View My Work

About me

Born in Cali,
built in New Jersey.

I'm a Computer Science graduate from the New Jersey Institute of Technology with a passion for mobile development. I love turning ideas into polished, production-ready apps that people actually enjoy using.

My focus is the mobile ecosystem — React Native and Expo for cross-platform, Swift for native iOS. I care deeply about performance, clean architecture, and experiences that feel native on every device.

When I'm not coding, you'll find me at the CrossFit box, exploring new cities, or building side projects that scratch my own itch.

Skills

Tech I work with

  • Expo
  • TypeScript
  • SQLite
  • Git
  • Apple Development Ecosystem
  • Claude

Selected Work

Apps I've shipped

Tap the phone to explore the app — see the features, tech stack, and download link.

CRFit

Your CrossFit companion

Libraries I've published

Open-source modules for React Native and Expo.

rn-watch-connect.vercel.app
rn-watch-connect documentation site

rn-watch-connect

Talk to your watchOS app directly from Expo

A native module built with the Expo Modules API on top of Apple's WatchConnectivity.

GitHub ↗ npm ↗