I am a React Native Developer based in the San Francisco Bay Area
📱 Building cross‑platform mobile apps with React Native & Expo
🖥️ Leveraging strong experience in systems architecture and enterprise IT
- I create high-impact mobile apps that simplify development, reduce costs, and improve maintainability
- Recently launched AssetRanger 🚀 an app built in React Native + Expo that was migrated from a legacy iOS app
- Passionate about crafting performant, user‑friendly mobile experiences - currently working on my next big thing!
Mobile & Cross-Platform
React Native • Expo • TypeScript • React Navigation • Expo Router
State & Data Management
Zustand • AsyncStorage • SQLite • REST APIs • Custom Hooks
Native Features & UI
Expo Camera • Expo Notifications • React Native Paper • Material Design 3 • Gesture Handler
Backend & AI Integration
Node.js • Express • OpenAI API • JWT Authentication • RevenueCat SDK
Testing & Development
Jest • React Native Testing Library • ESLint • Expo EAS Build
| Project | Description | Tech |
|---|---|---|
AssetRanger   |
AssetRanger is a mobile asset management application that helps you track equipment & items through check-out and return workflows with barcode scanning and location tracking. Learn more |      |
| NutriCue AI |
NutriCue AI is a production-ready mobile application that uses advanced AI to help you manage your reminders through natural conversation and intelligent image scanning. Learn more |     |
| Mars Photos App | Native Android learning project that fetches and displays NASA’s Mars photos using a REST API. | Kotlin • Moshi • Retrofit • Coil |
- 🔭 Primarily available for contract/freelance React Native work, but open to full-time for the right opportunity (hybrid in SF Bay Area or remote in US time zones)
💬 Always open to chat about opportunities or collaborations — reach out via email: - 📫 caesiusbay@gmail.com