React Native / Product Engineer based in Buenos Aires, Argentina.
I build production mobile and web products with React Native, React, TypeScript, Node.js, and AI-assisted development workflows.
I enjoy owning features end to end — from product thinking and technical design to implementation, release, and iteration.
Currently focused on:
- 📱 React Native / cross-platform product engineering
- 🤖 AI-powered product experiences and agent-assisted development
- ⚡ Real-time systems, performance, and production reliability
- 🚀 Building and shipping independent products
A macOS app that turns your Mac into a safe fullscreen playground for babies while protecting your open apps and work from accidental keyboard and mouse input.
Highlights
- System-level keyboard and mouse input interception
- Fullscreen multi-display protection
- Interactive keyboard, drawing, and balloon modes
- Parent gate with Touch ID / PIN
- Play timer, volume cap, and dim mode
- English, Korean, and Japanese localization
- Signed and notarized for macOS
👉 Live: https://baby-desk.pages.dev/
Open AI coding projects in persistent tmux sessions — start Claude Code at your desk and reconnect from anywhere.
Open-source AI release assistant that analyzes a mobile app and helps prepare what is needed for App Store and Google Play submission.
Mobile & Frontend
React Native · React · TypeScript · JavaScript · Expo · EAS · Next.js
State & Data
Redux · React Query · Jotai · MMKV· Context API · Firebase · Firestore
Backend & Cloud
Node.js · Express · MySQL · AWS
Real-time & Product
WebSockets · REST APIs · Feature Flags · A/B Testing · In-App Purchases · Subscriptions
AI-assisted Development
Claude Code · OpenAI Codex · LLM Integration · Prompt Engineering
I like to start by clarifying the product problem and technical direction, then break the work into small, reviewable tasks.
I use AI tools heavily for implementation, exploration, debugging, and code review — but I keep architecture, validation, product decisions, and final engineering judgment human-owned.
- GitHub: https://github.com/gunwooko
- LinkedIn: https://www.linkedin.com/in/gunwooko/
- Email: gunwoo.dev@gmail.com
Building products that are useful, reliable, and actually ship.