Flight Software Engineer

ABOUT POSEIDON AEROSPACE: Poseidon Aerospace is reimagining how the world moves goods. We build and operate full-size autonomous cargo aircraft; Heron, a seaplane, and Egret, a STOL aircraft; each capable of carrying two tons of payload over a thousand nautical miles. From remote communities to contested logistics operations, our platforms unlock a new cost curve for air freight, making it faster, cheaper, and accessible anywhere it's needed. Headquartered in San Francisco with offices in Washington, DC and Maine, we're a small team building something consequential. As a Flight Software Engineer at Poseidon Aerospace, you will develop and maintain autonomous flight software for our aircraft. You will work on systems that enable safe, reliable, and efficient autonomous flight, including navigation, control algorithms, and real-time decision-making. We’re looking for someone with hands-on experience working on autonomous aircraft, who thrives in dynamic environments, and is passionate about pushing the boundaries of aviation technology. Responsibilities - Design, develop, and optimize autonomous flight software, including guidance, navigation, and control (GNC) algorithms specifically for autonomous aircraft. - Implement real-time decision-making systems for autonomous operations, managing dynamic flight conditions and environmental factors. - Integrate software with onboard sensors, actuators, and avionics, enabling autonomous mission execution and real-time adaptation. - Develop software for flight planning, collision avoidance, precision landing, and mission management. - Test and validate software using simulation environments, hardware-in-the-loop (HITL) setups, and real-world flight testing. - Conduct rigorous code reviews and implement best practices to ensure software reliability and performance in autonomous aircraft systems. - Collaborate with aerospace engineers, avionics engineers, and field testing teams to ensure robust software integration and reliable