Mohammad Jahangir — Riyadh, Saudi Arabia
Mobile App Developer in Riyadh
Mobile app development work is concentrated in React Native, building cross-platform apps that ship to both the App Store and Google Play from a single codebase. In Riyadh, that has meant apps for field-workforce management, invoice-based customer loyalty, ride-hailing comparison, and content rating — each with different offline, real-time, and bilingual requirements.
The mobile work is rarely standalone: each app is the client half of a backend built in parallel (NestJS, Node.js, MongoDB, PostgreSQL), so the API contracts, push notifications, and background sync are designed together rather than bolted on afterward.
What this looks like in practice
- Building the Opperiq field-operations app: geofenced attendance, live GPS tracking, and AI face/selfie verification
- Building Kafoo's customer-facing loyalty app with invoice QR scanning and bilingual Arabic/English UI
- Shipping Top Influencers Content's iOS and Android apps, live on the App Store and Google Play
- Building NavGo's ride-comparison app across multiple third-party providers
- Diagnosing platform-specific bugs, including an iOS-only Arabic text rendering issue in Kafoo
Frequently asked
Is Mohammad Jahangir a React Native developer?
Yes. React Native is the primary mobile stack across Opperiq, Kafoo, NavGo, and Top Influencers Content, including apps live on both the App Store and Google Play.
Does he build apps for Saudi/Arabic-market audiences?
Yes — Kafoo and Top Influencers Content both ship bilingual Arabic/English interfaces, and several apps have required Arabic-specific fixes such as iOS CoreText font-fallback handling.
Does mobile work include native features like GPS and camera-based verification?
Yes. Opperiq's field app uses live GPS tracking, geofencing, and an AI-powered face/selfie verification service (YOLOv8, InsightFace) for attendance.
Technologies
Related work
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