Gia Hạo

React Native Developer with 4+ years of experience building and delivering production-grade mobile applications for Android and iOS. Experienced in React Native ecosystem, mobile architecture, video streaming solutions, DRM integration (Widevine/FairPlay), adaptive streaming (HLS/DASH), In-App Purchase, Firebase services, and backend integration with Node.js. Strong background in performance optimization, third-party SDK integration, mobile security, CI/CD pipelines, and App Store / Google Play release management.

Proven ability to deliver scalable applications in Agile/Scrum environments.

React Native Developer - Javis

(2024-07)

• Developed and maintained a high-performance video streaming application for Android and iOS.
• Integrated DRM-protected playback using Widevine and FairPlay with HLS/DASH streaming.
• Implemented subscription-based In-App Purchase using RevenueCat.
• Integrated Firebase services, Deep Linking, Universal Links, and production monitoring.
• Optimized application startup time, rendering performance, and memory usage.
• Managed mobile release pipelines using Fastlane for App Store and Google Play.

Mobile & Backend Developer - Soin Media - HCMC, Vietnam

(2022-07 - 2024-07)

• Built cross-platform mobile applications using React Native and TypeScript.
• Developed reusable UI components and integrated RESTful APIs with Node.js backend.
• Optimized database queries and application performance, improving response time by 40%.
• Reduced crash rate by 80% through monitoring, debugging, and optimization.
• Integrated payment gateways, health tracking APIs, video communication SDKs, and push notifications.
• Participated in Agile/Scrum development, code reviews, and client communication.

Bachelor of Information Technology / Software Engineering - Software Engineering - Can Tho University of Engineering and Technology (2016-10 - 2021-05)