Chen worked on the android/androidify repository, where he developed an orientation-aware Camera UI that dynamically adjusts camera controls based on device rotation. Using Kotlin and Jetpack Compose, he engineered the camera layout to prevent finger obstruction in landscape mode, directly addressing a usability issue with the camera preview. His approach involved targeted updates to the cameraLayout, resulting in a focused, low-risk UI/UX patch that improved the overall user experience. Chen’s work demonstrated a solid understanding of Android development and mobile UI engineering, with an emphasis on maintainable code and clear documentation. The feature was delivered within a one-month development period.