Osama K.

Senior firmware engineer with 5+ years of experience shipping production firmware on STM32, PIC32, ESP32, nRF52, and Xilinx Zynq platforms. Top Rated on Upwork. What I can help you with: • Bare-metal and RTOS firmware (FreeRTOS, Zephyr) in C/C++, written to MISRA-C guidelines • Peripheral and protocol drivers: SPI, I2C, UART, CAN, TCP/IP, ADC/DAC • Wireless and IoT: Bluetooth LE (nRF Connect SDK certified), MQTT, AWS IoT Core • FPGA/SoC: Zynq-7000 PL/PS co-design, DMA controllers • Embedded Linux and Raspberry Pi (C and Python) • Audio signal processing (MATLAB/Python) I care about one thing above all: code your in-house team can read, review, and maintain long after handover. That means clear structure, meaningful naming, comments where they earn their place, and reproducible builds with CMake and CI/CD (Jenkins, GitHub) — you get tested builds, not zip files. Recent work includes firmware for an ATtiny814-based medical device, BLE sensor nodes on nRF52832, power-regulator PCB and firmware, and DMA controllers on Zynq-7000. Tell me about your hardware and where you're stuck — I usually reply within a few hours.