Firmware Engineer- Embedded Systems - STM32

• Design and layout PCBs using Altium Designer (license and shared vault provided)
• Develop electronics using STM32 ARM Cortex processors, from schematic to board bring-up
• Select and integrate humidity/temperature (RH/T) sensors, barometric pressure sensors, and ultrasonic transducers
• Implement and test connectivity using RS-232, RS-485, SDI-12, and USB interfaces
• Develop embedded firmware in C using STM32Cube/HAL for hardware abstraction
• Implement and maintain communication protocols and sensor control-including ultrasonic measurement routines
• Develop serial communications and manage peripheral interfaces via UART, SPI, I2C, analog signals, and A/D and D/A conversion
• Apply basic digital signal processing (DSP) and PID control as needed for sensor data handling
• Reference and optimize existing sensor firmware code for system integration and performance
• Lead iterative prototype and system testing, particularly during wind tunnel qualification
• Document design, code, and test procedures; participate in knowledge transfer with the internal team
• Collaborate closely with the customer's hardware and firmware teams to ensure project success

• Hands-on experience with Altium Designer for PCB development
• Proven ability to design with STM32 ARM Cortex processors (both hardware and firmware aspects)
• Strong embedded C programming skills and expertise with STM32Cube/HAL
• Solid knowledge of serial communications (RS-232, RS-485, SDI-12, USB) and sensor integration
• Familiarity with ultrasonic transducer selection and environmental sensor interfacing
• Experience with A/D, D/A, DSP, and PID control in embedded systems
• Capable of working independently and collaboratively across disciplines
• Willingness and ability to travel periodically to Grants Pass, Oregon for critical test and integration phases (if required)
• Local candidates preferred, but remote candidates considered

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