Explore opportunities with our portfolio companies

Elemental Excelerator
Elemental Excelerator

Senior Motor Control / Firmware Engineer



San Francisco, CA, USA
Posted on Wednesday, March 13, 2024

Join us at Gradient, where our purpose is to revolutionize home comfort while championing environmental sustainability. Our mission is to combat the escalating challenge of climate change by redefining how homes are heated and cooled. Today, the environmental impact of heating and cooling systems surpasses that of the entire transportation sector, and without intervention, this trend is set to escalate drastically. At Gradient, we believe that ensuring comfortable living spaces shouldn’t come at the cost of our planet. We envision a future where every individual can enjoy the luxury of a comfortable home without contributing to carbon emissions. Our high-efficiency, low-carbon heat pump is just the beginning of our journey toward fully decarbonizing buildings. By joining Gradient, you’ll be at the forefront of a movement to make sustainable living accessible to all, ensuring healthier communities and a brighter, greener future.

We are looking for a Senior Motor Control / Firmware Engineer who is an enthusiastic developer, likes to solve meaningful problems, and can support overall firmware, controls, & electronics strategy. The ideal candidate is very adaptable and technically minded while having an uncompromising focus and vision for our customers’ needs.

The estimated salary range for this role is $170,000-$195,000 USD per year + equity. Individual salaries vary on a number of factors including but not limited to geography, skills, education, experience and unique qualifications where applicable.

This role is required to be in our San Francisco, Mission office at least 3 days per week.


  • Push the envelope for motor control systems to ever greater performance
  • Optimize BLDC motor controls and power controls to provide best in class efficiency
  • Turn white papers and ideas from our research and product teams into production level features
  • Contribute and collaborate on embedded firmware development for the overall system in addition to motor controls

Desired Qualifications

  • Expert in Embedded C
  • 5+ years of firmware development experience in production environments
  • Experience with high power BLDC/PMSM motor control, including effective implementation of Park and Clarke transforms on an embedded platform
  • Knowledge of AC/DC active power factor correction
  • Knowledge of serial communications protocols such as USB, SPI, I2C, UART
  • Experience implementing real-time feedback controls such as PID in production environments
  • Experience with benchmarking and optimizing algorithms for real-time OS
  • BS Degree in Computer Science, Electrical Engineering, Mechatronics or similar
  • Proven track record of shipping high-quality electronics and software in consumer products on a tight schedule
  • Proficiency reading and interpreting schematics

Bonus Qualifications

  • Experience implementing advanced model-based controls such as Smith predictor, LQR, feedback linearization in production environments
  • Experience working with wireless communication SoCs, especially for WiFi and BLE
  • Experience with AWS IoT Core and related services
  • Experience with Altium or similar ECAD software


  • Equity
  • Medical/vision/dental/life/disability insurance
  • 401k
  • Paid parental leave
  • Professional Development Stipend
  • Commuter benefits
  • Unlimited PTO
  • Relocation package ( out of state applicants only )

We are committed to building a diverse and inclusive company. We seek to create a culture where everyone can belong because we believe that people do their best work when they can show up every day as their authentic selves. We welcome people of different backgrounds, experiences, abilities, and perspectives.

Gradient is an equal opportunity employer. We do not make hiring or employment decisions on the basis of race, religion, color, national origin, gender, gender identity, sexual orientation, age, marital status, veteran status, disability status, or genetic information, in compliance with applicable federal, state and local law.