Embedded C, Device Drivers, Spi, Pcie, I2c, Scripting, Linux Kernel, Usb, Uart, Gpio, Git, Yocto, Ethernet, hardware-software integration, cross-compilation, SoC BSP development, Linux debugging tools, ARM ARM64 architecture, UFS, BitBake, eMMC, low-level debugging, board bring-up, Device Tree Kernel configuration