Primary stack: iOS (Swift / SwiftUI / Objective-C). Also available for Android and HarmonyOS projects.

iOS Proficient in Swift, SwiftUI, Objective-C. Solid understanding of Runtime internals, GCD, and thread safety. Experienced in MVP/MVVM architecture and componentized framework design — independently architected a full component system supporting multiple business apps. Skilled in performance tuning, memory management, crash analysis, and jank detection.

Overseas App Experience Full App Store & Google Play submission experience. Hands-on integration and console configuration of Firebase, Sendbird, Stripe, RevenueCat, and AdMob.

Engineering & Tooling CI/CD setup via Jenkins + Shell scripting. CocoaPods and Swift Package Manager library development and publishing. AI-assisted development workflow. Open-source framework maintenance experience.

If you have mobile app development tasks, please contact me: jackiehu1122@gamil.com