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Staff Firmware Engineer

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Staff Firmware Engineer in USA

  • Samsara
  • Full time
  • Email
  • Remote

Responsibilities

  • Evaluate hardware components, including SoCs, flash, RAM, and sensors, and validate choices on prototypes
  • Bring up new hardware platforms by configuring I/O, enabling SPI, I2C, UART, and BLE, debugging system initialization, and validating designs
  • Develop peripheral drivers, secure bootloaders, device firmware updates, power-management layers, and connectivity-management layers
  • Optimize protocols and hardware management for long battery life in sensors and gateways
  • Collaborate with product, full-stack, mobile, electrical, cloud, and quality engineers to deliver complete products
  • Design systems that collect sensor data, detect meaningful events, and structure recorded data for efficient analysis across devices
  • Lead technical work and provide designs, reviews, and guidance that raise the effectiveness of the engineering team
  • Drive consensus across teams, document technical decisions, and deliver iteratively at scale

Requirements

  • 8+ years building firmware for resource-constrained systems shipped to and operated by real customers
  • Fluency in C and ability to analyze compiler behavior, linker maps, stack traces, and memory issues
  • Substantial bare-metal and RTOS experience, including scheduling, memory, timing, mutexes, and semaphores
  • Experience bringing up new boards and debugging hardware-software issues with electrical engineers
  • Fluency with SPI, I2C, UART, CAN, and ADC interfaces
  • Experience using oscilloscopes, network analyzers, or RF spectrum analyzers
  • Staff-level experience leading work across hardware, firmware, cloud, and quality from concept through shipment
  • Ability to drive cross-team consensus, make cross-layer technical trade-offs, document designs, and conduct post-mortems
  • Experience iterating quickly with automated testing and maintainable code
  • Preferred: deep BLE expertise and PHY-level understanding
  • Preferred: cellular IoT experience with LTE-M or NB-IoT, power-state management, and FCC, PTCRB, and carrier approvals
  • Preferred: embedded security experience with secure boot, firmware signing, cryptography, and key management
  • Preferred: OTA and device firmware update experience at fleet scale, including A/B partitions and rollback
  • Preferred: embedded Linux experience with Yocto or Buildroot, kernel drivers, and device trees
  • Preferred: CAN and J1939 experience on commercial vehicles
  • Preferred: Python and Bash tooling experience and hardware-in-the-loop test automation
  • Preferred: experience with electronics manufacturing, factory processes, quality assurance, and production issue resolution

Benefits

  • Remote for applicants residing in the United States or Canada
  • Flexible employee-led remote work model with offices available for in-person work
  • Professional development stipend
  • Comprehensive health and parental leave plans
  • Performance-based bonus or variable pay and equity eligibility, including an initial RSU grant and ongoing refresh opportunities subject to plan terms

Salary: $162k - $290k/yr

Samsara

Samsara builds the Connected Operations Cloud, which leverages IoT data to enhance safety, efficiency, and sustainability for companies across various industries like agriculture, construction, and transportation. Our platform delivers real-time visibility and AI-driven insights that empower orga...

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