About Poseidon Aerospace: Poseidon Aerospace is reimagining how the world moves goods. We build and operate full-size autonomous cargo aircraft - 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 the San Francisco Bay Area with locations in Washington DC, Oregon, and Maine; we're building something consequential. As a Composite Technician at Poseidon Aerospace you will be responsible for the fabrication and assembly of advanced composite components for aerospace prototype and development programs. This role requires a strong understanding of composite materials, custom tooling, and hands-on manufacturing techniques. The ideal candidate is a skilled fabricator who can interpret engineering concepts, build tooling or jigs as needed, and support one-off as well as high-rate composite builds from start to finish. Responsibilities: • Fabricate composite components using hand layup, resin infusion, and bonding techniques. • Build, modify, and maintain custom molds, fixtures, and jigs to support prototype part fabrication and assembly. • Collaborate closely with engineers and designers to interpret 3D models, drawings, and verbal instructions. • Develop and refine layup methods, cure cycles, and fabrication approaches for new designs. • Set up and monitor vacuum bagging, and oven curing processes. • Trim, drill, and assemble complex composite parts to tight tolerances using manual and power tools. • Perform surface preparation, adhesive bonding, and final finishing operations. • Maintain traceability of materials and processes to meet aerospace documentation requirements. • Identify and communicate design or manufacturability issues and propose practical solutions. • Contribute to continuous improvement initiatives in prototype and production transition efforts. Ideal Qualifications: • 3+ years of hands-on composite fabrication experience (prototype, marine, or aerospace environment preferred). • Proficiency with hand layup, prepreg handling, and vacuum bagging techniques. • Ability to read and interpret engineering drawings, CAD models, and process specifications. • Strong problem-solving and troubleshooting skills in a fast-paced, dynamic environment. • Comfortable working with epoxy resins, adhesives, and solvents while following safety procedures. Nice to Have: • Experience fabricating or modifying jigs, fixtures, or tooling using metal, wood, or composite materials. • Familiarity with precision measurement tools and quality inspection processes. • Familiarity with 3D modeling software. • Experience working in a fast paced prototyping environment and large scale production. What you get from us • Competitive salary and meaningful early-stage equity • Relocation support if applicable • Employee Health Benefit Plans • 6% Retirement matching • Flexible PTO • Free lunches, snacks, and a stocked fridge at our offices • AI tools and subscriptions