R&D Technician- Structural Welding

Why Castelion, Why Now

Castelion is moving incredibly fast to develop and deliver advanced defense systems at a time when execution matters more than ever. We believe focus, ownership, and excellence are decisive advantages - and we're building a world-class team to turn bold ideas into real capability.

Castelion is moving incredibly fast to develop and deliver advanced defense systems at a time when execution matters more than ever. We believe focus, ownership, and excellence are decisive advantages - and we're building a world-class team to turn bold ideas into real capability.

This is a rare opportunity to join at an early stage, where you'll have significant ownership, collaborate with exceptional teammates, and make a direct, measurable impact on our mission and the future of the company - regardless of your function.

Castelion is seeking a detail-oriented and highly motivated R&D Technician focused on structural welding to join our manufacturing team. In this role, you will support the design, setup, execution, and documentation of GSE/Test article fabrication at our Mariner Factory, support the build and integration of flight assemblies, and occasionally travel to support launch activities across the country. You will work closely with design and manufacturing engineering teams to ensure products meet rigorous performance, reliability, and safety standard.

• Work with a team of technicians responsible for fabrication, assembly, and modification of Flight, GSE and Test articles (Structural Welding, precision drilling, bonding, harnessing)
• Execute on the welding and assembly of GSE, flight articles, and fest fixtures.
• Capable of assembling, servicing, and operation hydraulic actuation systems.
• Interpret drawings and engineering specifications for the purpose of fabricating structural steel weldments and aerospace flight assemblies.
• Collaborate with engineers to refine designs and procedures.
• Support root cause analysis and continuous improvement efforts.

• High school diploma or equivalency certificate
• 5+ years experience in structural welding.
• 3+ years of hands on mechanical experience in one or more of the following: testing of aerospace/automotive systems, maintenance/troubleshooting complex mechanical systems, and/or fabrication/assembly of complex electromechanical systems.
• Ability to stand for extended periods
• Ability to lift up to 50lbs
• Ability to walk throughout the facility and on uneven terrain
• Ability to climb ladders and in and out of motor vehicles
• Ability to perform repetitive motions with hands and arms
• Ability to work outdoors in both hot and cold climates

• Associate degree in engineering, mechanical, electrical systems, or other related field
• LA City Welding Certification
• Computer skills, including experience using Microsoft Office, Teamcenter, NX
• Experience reading/interpreting planning documents, schematics, wiring diagrams, specifications, drawings, manuals, blueprints, and engineering sketches
• Experience with precision measuring instruments/equipment
• Experience with rigging, cranes, and lift operations

Castelion offers a generous benefits package. Please refer to the bottom of our Careers page for more details.

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice.

This position may require access to classified information or restricted U.S. Government sites, systems, or information, as determined by the Company and/or applicable U.S. Government requirements. If the position is so designated, your employment in the role may be contingent upon your ability to obtain and maintain the required U.S. Government security clearance or other government authorization, and to satisfy any citizenship or other eligibility requirements imposed by applicable law, regulation, executive order, or government contract requirements.

You will be notified if and when such requirements apply.

Castelion is an Equal Opportunity Employer. We are committed to providing equal employment opportunities to all applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity,…