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PAX Labs
emoji of a pushpinSan Franciscoemoji of a money bag$110-150kemoji of a clockThu Oct 01 2020

PAX Labs is an award-winning consumer technology brand with a mission to establish cannabis as a force for good. Our products set a high bar for quality and, together with the PAX App, offer unique features such as safety locking, adjustable temperature and draw control. As millions of consumers try cannabis for the first time or return to it after a long hiatus, PAX believes that quality, transparency and predictability are the keys to safe, responsible use by adults.

Headquartered in San Francisco, PAX is backed by leading technology investors including Tiger Global and Tao Invest (Pritzker family fund). We are an exceptional team with hardware and software backgrounds in consumer technology, healthcare, and biotech, and are growing to deliver on our mission. Our internal culture values diversity, integrity, having an impact, and passion for the larger movement that PAX is a part of.


We are seeking a dynamic, skilled, and passionate Firmware Engineer to join the PAX Hardware team. With your detailed study and understanding of existing designs, you'll apply innovative engineering principles towards re-design and optimization of our hardware products. We are looking for a strong communicator who is able to work effectively with peers and management alike in a dynamic global environment. The ability to respond quickly, energetically, and enthusiastically to changes is key for our Firmware team. In this role, you'll collaborate with all engineering design subject areas including reliability, manufacturing, component engineering, and other internal and external resources. Are you a highly motivated and hardworking Firmware Engineer? We'd love to hear from you!

As a PAX Firmware Engineer, you will:

  • Build, modify, debug and document code and algorithm for new and existing products

  • Write test specifications and procedures for firmware validation and production QA

  • Provide test fixture and utility support for manufacturing, QA, and contract manufacturers

  • Fix product failures on PCBs, power supplies, sensors, electromechanical assemblies and MCU exceptions

  • Maintain communication and task schedules within the development team and present to management on task status


  • 3+ years of proven experience in firmware development

  • Self-motivated with an excitement to learn new skills and grow

  • Ability to focus on details and a resourcefulness to drive issues until they are resolved

  • Previous experience with medical devices or other regulated products is desirable

  • Proficiency in C; Python or other language is a plus

  • Experience with Bare-metal or RTOS on MCU based low power devices

  • Experience with Agile and Github

  • Understanding of serial communication protocols I2C, SPI, UART

  • Experience working with Electrical Engineering to bring up a PCB

  • Knowledge of BLE (helpful)


  • BS in Computer Science or Computer Engineering, or related field. Associate’s degree with significant experience will be considered. Master’s degree is a plus.


  • Competitive compensation, equity & bi-annual performance reviews

  • Fully funded comprehensive medical, dental, and vision coverage

  • 401K plan

  • Generous PTO policy

  • Paid Parental Leave

  • Monthly wellness reimbursement

  • Cell Phone reimbursement

  • Employee Purchase Program for discounted PAX devices

  • Weekly catered lunch, endless snacks and beverages

  • Dog Friendly HQ in the Mission District of San Francisco

  • Employee Assistance Program including access to online legal support

What is your Interview process like?

Recruiter screen, hiring manager screen, tech screen, virtual onsite.

Apply Now
When you apply, please mention that you found the posting on Diversify Tech!

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