Senior Firmware Engineer (Medtech)

Location: San Francisco, US; hybrid work with 3 full office days per week

Salary: $156K–$214.5K annually, plus equity

Company

hirify.global develops AI-powered, human-centered digital healthcare for musculoskeletal, pelvic health, gastrointestinal, and migraine conditions.

What you will do

• Own firmware features and subsystems from architecture and prototyping through development, integration, production readiness, and production ramp.
• Design, implement, and test maintainable embedded software for highly integrated medical devices.
• Integrate firmware with electrical, mechanical, and manufacturing systems and investigate hardware-software boundary issues.
• Guide system architecture and technical trade-offs across design, testing, and production.
• Improve embedded build, test automation, documentation, and quality practices for regulatory needs.
• Lead design and code reviews, mentor engineers, and collaborate across engineering, product, manufacturing, and design.

Requirements

• 5+ years of professional firmware or embedded software experience in consumer electronics, medical devices, or other highly integrated embedded hardware.
• Strong experience with C in embedded systems and RTOS-based system architecture such as Zephyr or FreeRTOS.
• Experience with low-level drivers and hardware communication protocols including I2C, SPI, or UART.
• Experience owning firmware for a project or subsystem from design through production, including technical planning.
• Experience with Python-based testing or automation, version control, and embedded debugging workflows.
• Ability to own complex technical work, make system-level decisions, communicate trade-offs, collaborate across disciplines, and contribute to design and code reviews.
• Methodical approach to quality, robust testing, clear documentation, and mentoring other engineers.

Nice to have

• Medical-device experience or experience in a highly regulated industry such as aerospace or automotive.
• Experience using AI tools for firmware development, including Copilot or agentic workflows.
• Experience with Nordic nRF5x SoCs and the Nordic Connect SDK.
• Bluetooth Low Energy development experience.
• Experience designing bootloaders, firmware updates, or memory maps.
• Experience building embedded CI pipelines and automated hardware-in-the-loop testing.
• Experience mentoring or technically guiding other engineers.

Culture & Benefits

• Hybrid work model with required office attendance three days per week for the full business day.
• Medical, dental, and vision coverage, including support for gender-affirming care and family and fertility planning.
• Travel reimbursements when healthcare is unavailable where an employee lives.
• Traditional or Roth 401(k) options with a 2% company match.
• Learning and development stipend and discounted company stock through an ESPP.
• Inclusive, equal-opportunity workplace with reasonable accommodations for candidates with disabilities.