People, Person, Computer, Electronics, LCD Screen, Laptop, Pc

Firmware Engineer, EmbeddedSan Francisco, California, United States


Firmware Engineer, Embedded

San Francisco | California | United States

Tonal is building an intelligent fitness system that will change the way people work out at home. It isn't a wearable or mobile app. Tonal is a fresh approach to fitness that leverages hardware, software, video content, and artificial intelligence. Everyone who's seen our product, from professional athletes to fitness enthusiasts, has fallen in love.

Tonal is a well-funded and fast growing startup that has built a close-knit culture of high performers. Led by repeat entrepreneurs, we're a diverse team where everyone strives to be the best version of themselves, and we know that can't happen unless we're all having fun working on something that has meaning to us. If you're passionate about both a healthy lifestyle and technology, then check us out!


As part of the Hardware team at Tonal, we build our intelligent fitness system with embedded processors running anything from bare metal to Android using a variety of sensors, motors and communication paths to create an exceptional user experience. We're looking for a passionate and motivated Firmware Engineer to dig into many of these areas.

What You Will Do

  • Design and develop our embedded software systems
  • Integrate new sensors, improve control systems, implement and debug features
  • Work with product management, mechanical and electrical teams to understand requirements
  • Work with software, backend and design teams to drive feature implementation
  • Work with manufacturing to ensure product data is available and quality is met
  • Help the team establish best practices for development, test, and deployment
  • Maintain a high bar for product quality, safety and user experience

Who You Are

  • 3+ years firmware development experience
  • Very strong at C development, experience in C++, Java, Python is also valuable
  • Experience with high power BLDC motor control
  • Experience with sensors and actuators
  • Experience with safety systems and communication protocols
  • Experience with Bluetooth and BLE
  • Knowledge of embedded development best practices and tools
  • Creative problem solving, and aren't afraid to push the boundaries
  • High attention to detail
  • Great oral and written communication skills
  • Team player with high integrity and high degree of self awareness
  • Open to feedback and constantly striving to improve
  • Enjoy using the product! Provide feedback and work to make it even better.

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