mips architecture , Linux Kernel Programming, Scripting Languages, Openwrt, C, Embedded Linux, Device Driver Development, C++, Network management, PurpleOS, L2/L3 forwarding software, Software architecture design, Debugging in embedded systems, Wi-Fi Extenders, Peripheral integration, GPON ONT home gateway products, Linux device application, board bring-up, 802.11 specifications, xPON ONT system development