Professional contribution
Patpat Mobile
By patpat
Patpat Mobile is a high usage classified marketplace where mobile performance, security, and release quality directly affect everyday users. I led the mobile engineering direction, shaped the application architecture, and delivered platform level improvements across iOS and Android.
React native application development
Contribution summary
At Patpat, I served as the lead mobile developer and defined the architecture for the React Native application used on iOS and Android. I built the app security layer from scratch with native modules for each platform, covering SSL pinning, Play Integrity, App Attest, root and jailbreak detection, Frida hook detection, tapjacking prevention, overlay protection, and related hardening measures without relying on third party libraries. I also led performance optimization using Android and iOS profiling tools, upgraded the project for 16 KB page size support, added multilingual support, coordinated closely with internal teams and external stakeholders, and managed publishing for both app stores.
- Defined the mobile architecture and led feature delivery across the React Native codebase.
- Built a native security layer from scratch for both iOS and Android, including SSL pinning, Play Integrity, App Attest, root and jailbreak detection, Frida hook detection, tapjacking prevention, and overlay protection.
- Optimized app performance with Android and iOS profiling, added multilingual support, upgraded the project for 16 KB page size readiness, and managed store publishing with close coordination across teams and stakeholders.
Project outcomes
- Strengthened the mobile app security posture without depending on third party security libraries.
- Improved runtime smoothness and platform readiness for modern Android and iOS requirements.
- Supported reliable releases to both app stores while helping the product scale with a stronger technical foundation.
Stack focus
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