Worked on core Android applications, focusing on image processing and camera stability. In the android/socialite repository, optimized the selfie segmentation mask for green screen effects by introducing A8 raw masks and implementing line buffers with buffer reuse, which reduced memory usage and improved processing speed. Addressed a camera preview issue in tabletop mode within android/androidify by detecting folding state changes and properly invalidating the CameraX SurfaceRequest, later removing a workaround after an upstream fix. Utilized Kotlin, Java, and Gradle throughout, emphasizing maintainable code and performance optimization in Jetpack Compose-based mobile development environments. Delivered one feature and resolved one bug.