Senior iOS developer

Huan Zhang

Senior iOS Developer · US Permanent Resident

Denton, TX 76210 · TEL 972-***-**** · **********@*****.*** linkedin.com/in/huan-zhang2202 · github.com/zhang54289 Professional Summary

• 30+ years in IT, 10+ years in iOS development using Swift, SwiftUI, Objective-C.

• Expert in MVVM, MVC, Cocoa Touch (UIKit, Core Data), AVKit, TVOS.

• Skilled in Core Location, MapKit, push notifications, universal links, async REST APIs.

• Proficient in Java for Android and backend systems during Chuwa tenure.

• Experienced in Git, Agile, unit/UI testing with XCTest/XCUITest.

• Led global teams in delivering scalable iOS solutions and app distribution. Professional Experience

Senior iOS Developer, VIZIO TV, Addison, TX Nov 2022 – Present

• Spearheaded SwiftUI redesign of VIZIO TV app using MVVM, reducing maintenance efforts.

• Developed Picture-in-Picture (PiP) with AVKit, enhancing streaming experience.

• Built async REST APIs for favorite app IDs, improving personalization.

• Integrated subscription APIs with secure authentication, driving revenue growth.

• Analyzed user touch movements, optimizing UI navigation.

• Implemented Share Extension, enabling seamless content sharing.

• Added push notifications, boosting user retention.

• Configured universal links for deep linking, enhancing engagement.

• Migrated UIKit components to SwiftUI, improving app performance.

• Utilized Core Data for efficient data management and caching.

• Conducted UI/unit testing with XCTest/XCUITest, ensuring high test coverage.

• Provided production support, resolving critical issues for global users. Tech Stack: iOS SDK, Swift, SwiftUI, AVKit, UIKit, Core Data, Core Location, MapKit, Xcode, TVOS, REST APIs

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Senior Software Developer, Shanghai Chuwa Software Co. Ltd., China & Japan Jul 1995 – Aug 2022

• Salaried Japanese Language Training, Shanghai, China (1995–1996): Achieved professional flu- ency for Japan-based roles.

• Mitsubishi Electric, Osaka, Japan (1996–1999): Built train simulation programs, streamlining rail operations.

• Developed ticket vending systems, enhancing transaction efficiency.

• Supported electric utility control systems, improving reliability.

• Integrated camera systems with Un*x C, Pro*C, PL/SQL for GUI gameplay.

• Sango Denki, Osaka, Japan (1999–2005): Developed C/C++ mobile software, improving relia- bility.

• Optimized mobile systems, reducing latency and enhancing scalability.

• Deployed mobile apps to production, ensuring robust performance.

• Nomura Syoken, Shanghai, China (2005–2022): Migrated Objective-C to Swift, improving main- tainability.

• Designed UIKit/Storyboard UI features for iOS apps.

• Optimized UI responsiveness, improving user satisfaction.

• Debugged Java Android apps, enhancing banking app performance.

• Optimized COBOL backend systems for robust transaction processing.

• Debugged complex backend issues, ensuring system stability.

• Collaborated with cross-functional Agile teams to meet deadlines. Tech Stack: iOS SDK, Swift, Objective-C, UIKit, Core Data, Java, COBOL, C, C++, Un*x C, Pro*C, PL/SQL

Education

B.S., Computer Science, Fudan University, Shanghai, China, 1995 2