- A video-editing product that contained 14 members. Built new features and implemented unit tests. Resolved user issues and crash bugs. Improved the performance of the products and refactored the codebase.- Improved the filtering time of the title font page by 92% by redesigning the data structure.- Reduced the loading time of the title list page by 97% by caching the list data in memory.- Increased the crash-free rate of the product by 0.11% by reverting the version of the… Show more - A video-editing product that contained 14 members. Built new features and implemented unit tests. Resolved user issues and crash bugs. Improved the performance of the products and refactored the codebase.- Improved the filtering time of the title font page by 92% by redesigning the data structure.- Reduced the loading time of the title list page by 97% by caching the list data in memory.- Increased the crash-free rate of the product by 0.11% by reverting the version of the IQKeyboard third-party framework which caused a memory leak.- Refactored a user interface component that contains 6000 lines of code by using MVC architecture.- Enhanced the performance of updating the position of the button components by 92.9% by avoiding adding/removing the view hierarchy frequently.- Created a feature that supported editing the showing time of captions and the test coverage was 95.3%.- Technologies: Swift, UIKit, Async Await, MVC Architecture, XCTest Show less

- A file transfer product that can move files between mobile and laptop. The team contained 4 members. Built the new feature and tested the product each time releasing.- Built a user feedback feature that can post feedback and upload the user's log to the Custom Services team which was tested by unit test and contained 90% coverage.- Technologies: Objective-C, UIKit, Grand Central Dispatch (GCD), VIPER Architecture, XCTest