Principal Firmware Engineer

4 days ago


San Francisco, California, United States Juul Full time
Job Title: Principal Firmware Engineer

We are seeking a highly skilled Principal Firmware Engineer to join our team at Juul Labs. As a key member of our engineering team, you will be responsible for designing and developing firmware solutions for our products.

Key Responsibilities:
  • Create, modify, and update code for new and existing products
  • Drive firmware solutions for improvements and high-level plan for factory test sequence
  • Own and manage troubleshooting and debugging workstreams, and expedite completion
  • Provide technical guidance and mentoring to team members through documentation and code reviews, knowledge sharing
  • Subject matter expert on firmware toolchains, methodologies, architectures, etc.
Requirements:
  • 10+ years of relevant firmware development experience in one or more of the following areas: new product design and development, test engineering, manufacturing support
  • Excellent verbal and written communication skills
  • Self-motivated, team player, with a strong desire to learn new skills and grow
  • Ability to multitask or focus on detailed problems, and tenacity to drive issues until resolved
  • Demonstrable firmware architecture design experience and strong technical troubleshooting skills
  • Strong experience in the C language is mandatory, as is experience developing Python scripts to support firmware development and validation
  • RTOS based firmware development experience is mandatory
  • Experience with embedded microcontrollers (ARM Cortex M0-M33)
  • Familiarity with security-related aspects and best practices associated with embedded system development including cryptographic algorithms, authentication protocols, secure boot, and device firmware update
  • Familiarity with low power design practices and experience developing firmware for battery-operated consumer devices
  • Working with EE to bring up a PCB is mandatory
  • Experience with sensors or other ICs communicating over SPI and/or I2C
  • Understanding of serial communication protocols I2C, SPI, UART
  • Experience in firmware version control using Git
Preferred Qualifications:
  • Previous experience with medical devices or other regulated products is desirable
  • Experience with Bluetooth and Bluetooth Low-Energy
  • Experience with Mynewt or Zephyr RTOS
  • Experience with BuildKite or other continuous integration platforms
About Juul Labs:

Juul Labs is a leading technology company that is committed to creating a diverse and inclusive work environment for all employees and job applicants. We are an equal opportunity employer and welcome applications from qualified candidates.



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