Senior Mobile Engineer & Tech Lead · React Native · Expo · TypeScript · Rio de Janeiro, Brazil 🇧🇷
I've spent 5+ years building and shipping production apps for iOS and Android with React Native. I usually own a product from start to finish: requirements, system design, UI in Figma, implementation, CI/CD and publishing on the App Store and Google Play.
The apps I maintain today run on 140k+ active devices.
- 📱 140k+ active devices across the apps I maintain, with tens of thousands of monthly active users
- 🏗️ 25+ white-label apps running from a single monorepo (Yarn Workspaces + shared packages), where each app is only a brand layer on shared code
- 💸 Built fintech-style flows from zero (balance dashboard, withdrawals, receivables anticipation), with 15k+ withdrawals processed
- 💬 Real-time chat with voice messages and optimistic updates: 800k+ messages exchanged
- 🚢 15+ releases in 8 months using EAS Build/Submit, OTA updates with fingerprint-based runtime versioning, GitHub Actions and Fastlane
- ✅ 40+ Maestro E2E tests covering critical flows, plus Jest and Detox
- 👥 Led a team of up to 6 developers: RFCs, coding standards, code review and pair programming
Contributions merged into the Expo ecosystem:
- expo/expo#51370 ·
expo-notifications: fixed an iOSEXC_BAD_ACCESScrash caused by concurrent access to pending notification handler tasks, traced from a production crash report - expo/orbit#343 · Orbit: added support for DeviceHub.app, the Xcode 27 replacement for
Simulator.app, restoring simulator launch and management on the new Xcode
- Native features: iOS Live Activities, widgets, Apple Health, Health Connect, biometric auth, push notifications, deep linking
- Architecture: offline-first apps, design systems, domain-driven structure with Expo Router
- Backend: Node.js, Express, PostgreSQL, Prisma, Socket.io, Redis
- UX: Apple Human Interface Guidelines, Material Design 3, accessibility (font scaling, reduce motion), i18n (PT/EN/ES)
