Senior Embedded Systems Engineer

Job Description

Senior Embedded Systems Engineer, Medical Devices

San Diego, CA (onsite/hybrid) | Full-time

About the role

A growing medical device company is hiring a Senior Embedded Systems Engineer to own firmware for its next-generation device platform. You’ll develop mainly in embedded C on STM32-based hardware, working across real-time control, device drivers, BLE connectivity, bootloader and firmware update infrastructure, and CI/CD. You’ll collaborate with hardware, systems, quality, and product teams to take the platform from prototype through verification and into production.

What you’ll do

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• Design, implement, debug, and maintain production-quality embedded firmware, mainly in C
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• Write drivers for sensors, pumps, fans, chillers, communication modules, audio, displays, and other peripherals
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• Implement real-time control for temperature and fluid-management subsystems
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• Configure and troubleshoot MCU peripherals (GPIO, ADC, timers, PWM, UART, SPI, I²C, DMA, interrupts)
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• Integrate the embedded graphical interface (TouchGFX, C++) and BLE connectivity
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• Contribute to bootloader, secure and over-the-air firmware updates, image signing, and production programming
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• Diagnose system-level issues with debuggers, oscilloscopes, and logic analyzers
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• Maintain automated build, test, static analysis, code coverage, and release processes
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• Write unit tests and verification procedures, along with clear design and troubleshooting documentation
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• Take part in design reviews, code reviews, and technical planning
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Requirements

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• BS in Electrical Engineering, Computer Engineering, Computer Science, or a related field, or equivalent experience
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• Strong professional experience developing embedded software in C
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• Solid embedded fundamentals: memory management, interrupts, timing, state machines, and hardware/software interfaces
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• Experience bringing up, debugging, and integrating firmware on physical hardware
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• Comfortable reading schematics, datasheets, and hardware interface specs
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• Familiarity with SPI, I²C, UART, and BLE
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• Proficiency with Git (branches, pull requests, code review, merging)
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• Able to work independently, make sound technical decisions, and communicate tradeoffs clearly
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• RTOS experience (FreeRTOS, CMSIS-RTOS) preferred
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• Embedded C++ UI development, ideally TouchGFX, preferred
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• CI/CD for embedded firmware (CMake, Make, Docker) and automated C unit testing (Ceedling, Unity, CMock) preferred
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• Bootloaders, secure boot, signed firmware, or over-the-air updates a plus
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• STM32 ecosystem experience (CubeMX, HAL, CMSIS) a plus, and STM32N6 a big plus
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• Regulated medical device software experience (design controls, risk management, cybersecurity) a plus
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• Thermal-control, fluid-control, battery-powered, or electromechanical systems a plus
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Why this role

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• Become a key technical owner of the embedded platform and help shape its architecture and development practices
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• Take a medical device from prototype to production
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