Firmware Engineer

This is a fully remote position, open to applicants in California, +2 more states.

📋 Description

• Develop firmware that operates on millions of devices utilized by industrial and enterprise clients.

• Assess and choose hardware components, such as SoCs, flash/RAM, and sensors.

• Initialize new hardware platforms and sensors from untouched silicon.

• Configure I/O and implement SPI, I2C, UART, and BLE functionality.

• Troubleshoot system initialization and verify hardware designs.

• Create peripheral drivers, secure bootloaders, device firmware updates, power management, and connectivity layers.

• Design protocols and manage hardware for battery-operated sensors and gateways.

• Collaborate with electrical, product, full-stack, mobile, and quality engineers.

• Ensure that firmware-generated data is delivered intact and beneficial for customers.

• Contribute to designs, reviews, and engineering practices that elevate team standards.

• Influence the operational strategies at Samsara as it expands globally and across new locations.

⛳️ Requirements

• Over 2 years of experience in developing firmware for resource-limited systems on products delivered to actual customers.

• Proficiency in C programming language.

• Strong bare-metal and RTOS experience, including Zephyr, FreeRTOS, or similar platforms.

• Experience in initializing new boards and untested hardware.

• Proficient in SPI, I2C, UART, CAN, and ADC interfaces.

• Capability to utilize an oscilloscope, network analyzer, or RF spectrum analyzer.

• Broad experience encompassing hardware, firmware, cloud solutions, and quality assurance from concept to product launch.

• Ability to connect driver-level decisions to customer experiences.

• Skilled in writing actionable design documents, review feedback, and post-mortem analyses.

• Experience in rapid iteration with automated testing and maintainable code.

• Familiarity with integrating AI into daily workflows.

• Knowledge of BLE, preferably at the PHY level.

• Experience with LTE-M or NB-IoT modem integration, managing power states, and navigating certification processes such as FCC, PTCRB, and carrier approvals.

• Proficient in secure boot, firmware signing, cryptography, and key management.

• Experienced in OTA/device firmware updates at fleet scale, including A/B partitions and rollback mechanisms.

• Background in Embedded Linux, Yocto or Buildroot, kernel drivers, and device trees.

• Familiarity with CAN and J1939 in commercial vehicles.

• Experience with Python and Bash for tooling and hardware-in-the-loop test automation.

• Understanding of electronics mass production and quality assurance protocols.

• Proven ability to resolve critical production issues.

🏝️ Benefits

• Initial RSU grant with no vesting cliff.

• Ongoing opportunities for equity refresh linked to performance.

• Performance-based bonuses or variable pay.

• Equity options for eligible roles.

• Flexible, employee-driven remote work model.

• Professional development stipend.

• Comprehensive health insurance packages.

• Parental leave programs.

• Offices available for employees who prefer in-person work.

• Remote work support in alignment with operational needs.