audio functions ( SOF, ALSA and customization ). Audio driver porting and audio issue fixing ( USB audio, BT , speaker and headphone ). Basic Audio EQ/DRC and volume tuning and integration. System stability testing and issue fixing. Audio 3rd party effect porting. ChromiumOS knowledge base development. Windows application tool design and develop for Audio verification and testing. (C#) Audio testing tool implement in bash. Razer senior software engineer, July 2020 ~ March 2022 Android application development Integration with Razer's & Google could service ( Razer SSO, Silver API, Google Fit ) Razer watch face for Razer