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Senior Motor Control Firmware Engineer



San Francisco, CA, USA
Posted on Thursday, January 4, 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.


  • Push the envelope for motor control systems to ever greater performance
  • Optimize BLDC motor controls and power controls to provide best in class efficiency
  • Contribute and collaborate to design and develop our embedded firmware systems
  • Turn white papers and ideas from our research and product teams into production level features
  • Work cross-functionally with the business and product teams to define the requirements for our product roadmap

Desired Qualifications

  • Expert in Embedded C
  • 5+ years of firmware development experience in production environments
  • Experience with high power BLDC/PMSM motor control
  • 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 developing production quality, application level algorithms
  • 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
  • Proficient in Python and other automation languages

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
  • Commuter benefits
  • Unlimited PTO within reason
  • Relocation package ( out of state applicants only )