Composite Technician

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.

• 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