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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Embedded Firmware Engineer - **Company:** Hextronics LLC - **Location:** Miami, FL, United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Automation of Tests, Network Analysis, Datasheets, Software Debugging, Linux, Embedded Software, Firmware, Hardware-In-The-Loop Simulation, Real-Time Operating Systems, Wi-Fi Technology, Information Technology, Bare Metal - **Published:** September 23, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=d31c4160f4558d47 ## About the Role * 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 Have * 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 ## Description 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., * 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 ## Related Videos - [Playing Pong on a shoulder press machine](https://www.wearedevelopers.com/videos/100140-playing-pong-on-a-shoulder-press-machine) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [More efficient software for more efficient microchips](https://www.wearedevelopers.com/videos/1164-more-efficient-software-for-more-efficient-microchips) - [Building your way to a serverless powered IOT Buzzwire game](https://www.wearedevelopers.com/videos/590-building-your-way-to-a-serverless-powered-iot-buzzwire-game) - [Agent Smith Gets Hardware: Autonomous IoT Hacking From Debug Port to Cloud API](https://www.wearedevelopers.com/videos/100258-agent-smith-gets-hardware-autonomous-iot-hacking-from-debug-port-to-cloud-api) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)