Composites 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 Composites Engineer with Poseidon Aerospace you will bridge design and fabrication for advanced aerospace structures. This hands-on position focuses on developing and supporting composite manufacturing processes, tooling, and assembly methods used to produce prototype and production airframe components. The ideal candidate possesses strong problem solving and project management skills and combines engineering fundamentals with practical, shop-floor experience. They are equally comfortable in CAD and on the production floor, supporting technicians, solving problems, and refining build methods in real time. Responsibilities: - Design, fabricate and procure tooling, molds, jigs, and fixtures required for fabrication and assembly. - Develop and document manufacturing processes for composite airframe components, including layup, bonding, curing, trimming, drilling, and assembly. - Collaborate closely with design engineering to ensure manufacturability, structural integrity, and production efficiency of composite parts and assemblies. - Work directly with technicians on the floor to support prototype builds, troubleshoot issues, and optimize build quality and efficiency. - Define material handling, kitting, and cure cycle parameters to ensure process consistency and compliance with specifications. - Support prototype builds and transition new designs to production, troubleshooting issues on the shop floor