Castelion

Overview

Castelion is innovating defense development and production with a focus on rapid testing and modern manufacturing strategies. The R&D Technician will support the fabrication and testing of hypersonic systems in a hands-on role.

Responsibilities

• Fabricate, fit, and assemble prototype components to engineering drawings and verbal instructions.
• Perform manual machining operations (lathe, mill) for low-volume prototype parts and fixtures.
• Execute TIG and MIG welding on metallic components; perform tack, finish, and cleanup to assembly standards.
• Prepare, lay up, and cure composite parts; perform repairs and trimming as directed.
• Read and interpret engineering drawings, CAD prints, and inspection criteria.
• Support first-article builds, bench and lab tests, and iterative design changes.
• Perform basic inspection and dimensional checks; document work and non-conformances.
• Maintain clean, organized work area and follow shop safety and quality procedures.
• Collaborate with engineers to suggest manufacturability or assembly improvements.
• Assist in tooling fabrication, jigs, and fixtures as required.

Requirements

• 3+ years hands-on experience in a machine shop, fabrication shop, or aerospace manufacturing environment.
• Proficient in TIG and MIG welding on aerospace-grade metals (aluminum, stainless, common alloys).
• Practical experience with manual machining: lathes, mills, and basic tooling.
• Experience with composite materials: layup, trimming, sanding, and small repairs.
• Able to read and interpret engineering drawings and follow detailed instructions.
• Strong attention to detail, good manual dexterity, and mechanical troubleshooting skills.
• Comfortable working in a team environment and communicating with engineers.
• Willingness to work in a safety-conscious, controlled environment (PPE, cleanroom practices as required).

Benefits

• Health Insurance
• Dental
• Vision
• PTO

Additional Information

• Ability to lift up to ~50 lbs occasionally and stand for extended periods.
• Ability to work with chemical resins, solvents, and adhere to PPE protocols.
• Shift flexibility as project needs dictate.
• May require U.S. citizenship and the ability to obtain/maintain a security clearance.