Software engineer focused on mobile: building and shipping cross-platform React Native and Expo apps for iOS and Android.

📱 Day to day: React Native & Expo apps, from architecture to the App Store and Google Play
⚙️ Release engineering: EAS Build & Submit, mobile CI/CD, OTA updates, multi-environment builds
🔐 App security: SSL pinning, code obfuscation, secure storage, mobile security testing
🧩 Backend: Node.js (Fastify, Express) and PostgreSQL on AWS
💬 Ask me about: React Native, Expo / EAS, mobile CI/CD, app security
📫 Reach me at: mohamedisa.tech · LinkedIn

Quiz App: Flutter app for taking quizzes, with Firebase auth and real-time progress.
Dental Clinic System: cross-platform appointment booking with built-in chat.
Questionnaire Website: web app to create, manage and answer questionnaires.