at commands , Rust, Bluetooth, C, Embedded Linux, Gdb, Spi, J1939, Can, Valgrind, I2c, Rs232, Ble, GSM, SoCs, ARM-based microprocessors, Hardware Software interfaces

systems architecture , Rtos, C, Embedded Software Development, Spi, Memory Management, Software Architecture, Design Patterns, Usb, multithreading, Uart, Can, Ethernet, Synchronization, system-level engineering, interrupt handling, object-oriented design, firmware engineering, architectural trade-off analysis, I²C, interface design, deterministic system behavior, performance optimization