working as system enginner. in charge of ar/vr glasses firmware, host SDK, ota component, camera/usb part of android's bsp, framework, test app.负责android和mcu端的软件开发工作，包括以下方面: linux内核驱动，u-boot, kernel系统移植，Android 系统ota, Ar眼镜固件ota, 下一代眼镜方案选型，架构搭建。Sdk中的设备管理模块开发维护，基于开源库的中间件开发，跨平台兼容调试，性能调优等。眼镜端固件开发，提供uac,hid,vcom 等设备供host访问眼镜资源，转发imu,camera等数据给host.

Responsible for the development of security middleware on android platform, release security sdk to customer (china mobile migu game center, china Unicom , etc), protect the third party’s game , prevent malicious escape or out of control billing .In recent years , we transfer to automotive electronic market , protect their system (car unit , phone unit, server, mpu, mcu), from APK reinforcement on MPU android , binary protection on MPU linux , encrypt the communication scheme on tbox , mobile phone , mcu ,etc.

Linux/android drivers (wifi,bt,gps,audio,codec,alsa,video,hal,etc) development and maintenance on 6715 platform , and customer support, offer turn key solution.

In charge of tdscdma feature phone development, AT command analysis, pass message to other subsystem , control rf unit, bug fixing , support hw team , onsite working in kora for several month.

Develop the windows mobile phone on marvel pxa or ti omap series, mainly on system porting , bootloader, lcd, wifi, Bluetooth, fm, gps, release binary to factory , working at production line until all testing finished.