Embedded Software Engineer III - PX4 Firmware & Simulation

<div class="content-intro"><p>At Zone 5 Technologies, we're redefining what's possible in unmanned aircraft systems. Our team of engineers and innovators is developing cutting-edge autonomous solutions that push the boundaries of UAS technology - solving complex challenges that matter.</p> <p>We're building the future of UAS capabilities, and we're looking for exceptional talent to join us. If you're driven by hard problems, energized by rapid innovation, and ready to make an impact on next-generation flight systems, you belong here.</p></div><p> </p> <p>We are seeking an Embedded Software Engineer to develop and maintain custom PX4 autopilot firmware for autonomous aerial platforms. You will modify core flight control algorithms, integrate custom sensors and payloads, build simulation environments for hardware-in-the-loop testing, and ensure reliable operation in challenging mission profiles.</p> <p><strong>Responsibilities:</strong></p> <p><strong>PX4 Firmware Development & Customization</strong></p> <p>• Develop, modify, and maintain custom PX4 firmware modules for mission-specific requirements</p> <p>• Implement custom flight modes, navigation algorithms, and control strategies</p> <p>• Integrate sensors, actuators, and payloads through PX4 driver and uORB message framework</p> <p>• Debug firmware issues using GDB, serial consoles, and flight log analysis</p> <p>• Patch and backport fixes across PX4 versions while maintaining stability</p> <p><strong>Build Systems & Toolchains</strong></p> <p>• Maintain build infrastructure using CMake, Make, and embedded toolchains</p> <p>• Configure cross-compilation environments for ARM Cortex-M target architectures</p> <p>• Manage firmware dependencies, submodules, and third-party libraries</p> <p>• Create reproducible build configurations and automate firmware generation pipelines</p> <p><strong>Simulation & Hardware-in-the-Loop Testing</strong></p> <p>• Develop and maintain SITL (Software-in-the-Loop) and HITL (Hardware-in-the-Loop) test environments</p> <p>• Integrate PX4 with physics-based simulation platforms for validation and regression testing</p> <p>• Create automated test scenarios to validate firmware changes before flight testing</p> <p>• Configure MAVLink communication interfaces for ground control and companion computer integration</p> <p><strong>System Integration & Testing</strong></p> <p>• Integrate PX4 with companion computers running ROS2-based autonomy stacks</p> <p>• Develop MAVLink and UART communication protocols between flight controller and edge compute modules&lt