Lead Mobile Engineer with 10+ years building apps used by millions.

Led a team of 6 engineers delivering React Native apps for global fintech, enterprise communication and IoT clients.

• 50% faster onboarding
• 30% lower crash rate
• ~35% faster screen loads
• 3d → 4h release time

• Architected the React Native (TypeScript) foundation for 3 client apps — component libraries, coding standards and review process.
• Upgraded RN 0.68 → 0.73 and migrated class components to hooks; moved state to Zustand + MMKV, removing 60% of redundant API calls.
• Integrated IoT devices over MQTT (topic design, QoS, reconnects) and built WebRTC live streaming with STUN/TURN and low-latency playback.
• Wrote native modules in Swift and Kotlin; implemented Face ID / Touch ID / Android Biometrics with Keychain/Keystore — zero credential incidents.
• Built a Fastlane CI/CD pipeline for tests, signing and store submission; mentored 4 engineers, 2 promoted to Senior.

• React Native
• TypeScript
• Zustand
• MMKV
• GraphQL
• MQTT
• WebRTC
• Fastlane

Core developer on Tragofone, a white-label enterprise VoIP softphone deployed by telecom operators in 15+ countries.

• <10% platform-specific code
• ~45% less memory
• 30% → 72% test coverage

• Engineered a unified RN codebase for iOS and Android, nearly halving feature delivery time.
• Integrated a full SIP/VoIP stack over PJSIP via native modules (Swift/Obj-C, Kotlin/Java): hold, DTMF, transfer, conferencing.
• Integrated CallKit and ConnectionService for native call UI and background calling, with WebRTC HD audio.
• Ran TestFlight and Google Play staged rollouts to 500+ beta testers.

• PJSIP
• CallKit
• ConnectionService
• WebRTC
• Jest
• RNTL

Built an offline-first education platform with live virtual classrooms for 10,000+ students.

• Integrated Twilio Video for live classrooms with screen sharing and host controls for up to 50 participants.
• Cut app launch time by 20% via lazy loading and deferred rendering of video streams.

• React Native
• Twilio Video
• Offline-first

• Shipped 3 production iOS apps in Swift and Objective-C, each approved by App Store Review on first submission.
• Reduced crash rate by 35% through Instruments profiling and targeted ARC / retain-cycle fixes in legacy Objective-C code.
• Led the team building real-time chat and calling: XMPP one-to-one and group chat with location and contact sharing.
• Set up SIP calling with Linphone and PJSIP, plus Socket.IO-based one-to-one chat and call signaling.
• Integrated REST APIs with OAuth 2.0, Codable JSON parsing and structured error handling for a B2C eCommerce app.

• Swift
• Objective-C
• XMPP
• PJSIP
• Linphone
• Socket.IO
• Instruments

• Developed and maintained iOS apps in Objective-C and Swift, including mixed-language codebases with bridging headers.
• Implemented Core Data persistence, Core Animation custom UI effects and AVFoundation audio / video playback.
• Integrated APNs push notifications, Firebase, Mixpanel analytics and payment gateway SDKs.
• Owned provisioning, code signing and App Store review for releases across the full development lifecycle.

• Swift
• Objective-C
• UIKit
• Core Data
• AVFoundation
• APNs
• Firebase

• Built a native iOS eCommerce app (Sultan Center) in Swift and UIKit with product browsing, cart and order management.
• Implemented PCI-compliant Apple Pay checkout.
• Added English, Arabic (right-to-left) and French localization to expand reach across Middle Eastern markets.
• Built intuitive UIKit screens and used Core Data for local data management.

• Swift
• UIKit
• Apple Pay
• Localization (RTL)
• Core Data