Brandon Drury

I’m an embedded systems developer with 14 years of hands-on microcontroller firmware experience spanning bare-metal C, FreeRTOS, and hardware bring-up across STM32, AVR, MSP430, C2000, and ESP platforms. I focus on turning real hardware constraints into reliable, maintainable firmware that performs under interrupts and concurrency pressure.

On a custom STM32 PCB project, I architected a full-featured, interrupt-driven FreeRTOS application from scratch with UART, SPI, and I2C peripherals. I used the HAL_*_IT → ulTaskNotifyTake → vTaskNotifyGiveFromISR pattern to remove blocking delays from all tasks, and I built a mutex-protected “blackboard” state model with careful attention to Cortex-M0+ atomicity and deadlock prevention.

My work is grounded in end-to-end system understanding: I integrated multiple sensors and devices (including interrupt-driven UART reception and multi-bus communication) and built a practical toolchain using J-Link and a CMake/VSCode/Cortex-Debug setup. I also migrated mid-project from STM32F103 to STM32G0B0 after systematic RAM profiling using uxTaskGetStackHighWaterMark() and arm-none-eabi-size.

Professionally, I’ve led technical DFM reviews and manufacturability assessments for hundreds of customer PCBs, and I developed 30+ Python and AutoHotkey scripts to automate repeatable engineering workflows. That combination of hardware/firmware stack fluency and automation mindset is what I bring to remote embedded firmware roles.