Firmware Engineer (Medical Devices)

Location: San Francisco, United States; hybrid work arrangement.

Annual salary: $126,400–$189,600, plus equity and benefits.

Company

hirify.global uses AI-powered, human-centered technology to deliver personalized digital care for musculoskeletal conditions.

What you will do

• Develop firmware for highly integrated embedded medical devices.
• Contribute throughout the product lifecycle, from exploration and prototyping to detailed design, testing, and mass production.
• Collaborate with electrical, mechanical, manufacturing, and firmware engineering teams on system architecture and integration.
• Ensure design quality, regulatory compliance, clear documentation, and robust testing.
• Support embedded software DevOps through build and test automation.
• Evaluate and apply AI tools to firmware development where appropriate.

Requirements

• 2+ years of professional firmware or embedded software development experience.
• Strong C programming skills in a firmware or embedded systems context.
• Experience with low-level drivers and protocols including ADC, PWM, I2C, SPI, and UART.
• Proficiency in Python for firmware testing tools and task automation.
• Experience with Git, embedded build systems, J-Link, debugging, and team-based development workflows.
• Ability to read datasheets and schematics and work with standard lab equipment such as oscilloscopes, logic analyzers, multimeters, and power supplies.

Nice to have

• Medical device or other highly regulated industry experience.
• AI-assisted firmware development, including copilot and agentic workflows.
• RTOS experience, especially Zephyr.
• Nordic nRF5x SoCs, Nordic Connect SDK, and Bluetooth LE.
• Bootloaders, firmware updates, memory maps, embedded CI pipelines, and hardware-in-the-loop testing.

Culture & Benefits

• Work in a small, collaborative hardware engineering team within R&D.
• Medical, dental, and vision coverage for employees and family members.
• Gender-affirming care, family and fertility planning support, and healthcare travel reimbursements.
• Traditional or Roth 401(k) options with a 2% company match.
• Learning and development stipends.