Principal Firmware Engineer

We are seeking a Principal Firmware Engineer to provide technical leadership for the firmware across our clients cardiovascular system. The ideal candidate will have extensive experience architecting and developing firmware for highly regulated environments such as medical devices. This role will drive firmware architecture and new feature development for the second generation of their device. This is a fully onsite position located in Carlsbad, CA.

Your Responsibilities Will Include:

• Lead firmware architecture, design, and development.
• Develop firmware in C and C++ on STM32H7 dual-core (Cortex-M7/M4) microcontrollers using STM32CubeIDE and the STM32 HAL.
• Design deterministic, real-time firmware with strict timing budgets, including interrupt, DMA, and peripheral management (SPI, I2S, UART, USB, GPIO).
• Define and implement communication interfaces between embedded controllers, FPGA-based subsystems, and host application software.
• Own the firmware software development lifecycle under IEC 62304, including requirements, architecture, detailed design, risk analysis, and traceability.
• Assist with the unit, integration, and system verification of firmware, including development of automated Python-based test tools.
• Establish and follow firmware coding standards, conduct design and code reviews.
• Collaborate with hardware, FPGA, systems, application software, quality, and regulatory teams to develop requirements and prototypes.
• Author and maintain design documentation, procedures, and firmware content for FDA submissions.
• Build strong working relationships across all functional areas, fostering a collaborative culture that drives the company’s mission forward.

• Bachelor’s degree in Electrical Engineering, Computer Engineering, Computer Science, or a related field (Master’s preferred).
• 12+ years of experience in firmware development, including 5+ years developing firmware for medical devices or other highly regulated environments.
• Demonstrated technical leadership in firmware architecture across multiple product development programs.
• Expert proficiency in C and C++ for resource-constrained embedded systems.
• Experience with STM32 microcontrollers and STM32CubeIDE; STM32H7 dual-core experience preferred.
• Hands-on hardware bring-up and debugging using oscilloscopes, logic analyzers, and JTAG/SWD debuggers.
• Experience with automated firmware testing and Python scripting.
• Experience integrating firmware with FPGA-based subsystems is a plus.
• Strong problem-solving skills and the ability to work in a fast-paced, collaborative environment.
• Excellent written and verbal communication skills.

Compensation: $170,000 - $220,000 base, equity and annual bonus are not offered at this time