Embedded Firmware Engineer

HextronicsMiami, FL
Onsite

About The Position

As an Embedded Firmware Engineer, you'll own the firmware that makes Hex hardware work. You'll write code for resource-constrained microcontrollers, bring up new boards, and debug your own firmware against real hardware with a scope in hand. Because you understand both the code and the circuit it runs on, you'll be the person who resolves the problems that fall between them. This is a hands-on role on a small team, and your firmware ships to systems operating in the field within months.

Requirements

  • Bachelor's in Electrical Engineering, Computer Science, or a related field
  • Professional experience writing firmware for resource-constrained targets: bare metal and RTOS environments, anything more constrained than Linux. We're targeting 2 to 5 years, and we'll consider earlier-career candidates who show exceptional promise.
  • Proficiency in C and C++ for embedded development
  • Hands-on experience with STM32 or comparable microcontrollers: peripheral configuration, clock and power management, and debugging
  • Literacy in circuit analysis. You can read a schematic, a board layout, and a datasheet without hand-holding, and you understand the electrical consequences of your code.
  • Independent use of electrical test equipment to diagnose bring-up and integration problems
  • Evidence of hands-on building outside formal work: side projects, competition teams, or self-taught depth
  • Based in Miami or willing to relocate. This role is on-site.

Nice To Haves

  • Firmware on a product that shipped to customers, not only development boards
  • Experience with low-power, long-range protocols like LoRa and Wi-Fi HaLow
  • Hardware-in-the-loop or automated test rig development
  • Motor control or power electronics firmware
  • Exposure to FCC and equivalent international regulatory testing from the firmware side
  • Comfort reading Altium schematics and layouts
  • UAV, robotics, aerospace, or defense industry background

Responsibilities

  • Own firmware development for Hex's drone and dock platforms across bare metal and RTOS environments
  • Bring up new hardware: board power-on, peripheral validation, and debug against schematic and layout
  • Diagnose firmware and hardware interaction issues independently using oscilloscopes, logic analyzers, and other bench instrumentation
  • Read schematics, board layouts, and datasheets directly, and account for electrical and physical constraints in your code
  • Write and execute test and validation procedures for development and production firmware
  • Serve as the first point of contact for the software and hardware teams on integration and testing of the firmware you build
  • Drive root cause analysis on firmware and hardware-interaction issues
  • Contribute to architecture decisions where the firmware, electrical, and software boundaries meet

Benefits

  • Competitive salary and equity
  • Comprehensive and highly subsidized medical, dental, and vision benefits for our team and their families
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