Furnace Technician, Ceramic Matrix Composites

Castelion; Torrance (CA); On-site; USD 60,000 - 90,000; Full time

Job summary

Castelion is seeking a hands-on Furnace Technician to operate high-temperature CMC processing furnaces and related equipment in a fast-paced aerospace manufacturing environment.

The role requires 2+ years operating industrial equipment, mechanical aptitude, and ability to follow detailed work instructions. Daily tasks include loading hardware, monitoring temperatures and cycles, responding to alarms, and maintaining production records. Night shifts and overtime may be required.

Qualifications

• High school diploma or equivalent.
• 2+ years' experience operating industrial manufacturing equipment.
• Mechanical aptitude and strong troubleshooting skills.
• Ability to read and follow detailed work instructions and procedures.
• Able to work flexible schedules, including nights, weekends, and overtime.
• Ability to lift up to 50 lbs and work around industrial equipment.
• Ability to wear PPE in a manufacturing environment.

Responsibilities

• Operate and monitor high-temperature CMC processing furnaces and associated manufacturing equipment.
• Load and unload production hardware, tooling, and fixtures according to established work instructions.
• Monitor process parameters including temperature, pressure, vacuum, gas flow, and cycle progression.
• Respond to equipment alarms, process deviations, and abnormal operating conditions.
• Perform routine equipment inspections and support preventative maintenance activities.
• Execute startup, shutdown, and changeover procedures.
• Support troubleshooting efforts and provide detailed documentation of equipment and process performance.
• Maintain accurate production records, process documentation, and shift handoff communications.
• Work closely with Manufacturing Engineers and Facilities personnel to improve equipment reliability and process performance.
• Maintain cleanliness and organization of manufacturing areas and equipment.
• Follow all safety procedures associated with high-temperature equipment, inert gases, vacuum systems, and industrial manufacturing operations.

Skills

Mechanical aptitude

Troubleshooting

Reading instructions

Flexibility

PPE compliance

Education

High school diploma or equivalent

Tools

Furnaces

Ovens

Kilns

Vacuum systems

Thermal processing equipment

Job description

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.

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.

Furnace Technician, Ceramic Matrix Composites

Castelion is seeking a hands-on Technician to support operation of our Ceramic Matrix Composite (CMC) manufacturing processes. This role will be responsible for operating high-temperature furnaces used in the production of advanced aerospace components, monitoring critical process parameters, supporting equipment troubleshooting, and ensuring successful execution of production runs.

The ideal candidate is mechanically inclined, comfortable operating complex manufacturing equipment, and enjoys working in a fast-paced manufacturing environment. This position plays a critical role in scaling Castelion's advanced materials manufacturing capabilities and supporting continuous production operations.

Responsibilities

• Operate and monitor high-temperature CMC processing furnaces and associated manufacturing equipment.
• Load and unload production hardware, tooling, and fixtures according to established work instructions.
• Monitor process parameters including temperature, pressure, vacuum, gas flow, and cycle progression.
• Respond to equipment alarms, process deviations, and abnormal operating conditions.
• Perform routine equipment inspections and support preventative maintenance activities.
• Execute startup, shutdown, and changeover procedures.
• Support troubleshooting efforts and provide detailed documentation of equipment and process performance.
• Maintain accurate production records, process documentation, and shift handoff communications.
• Work closely with Manufacturing Engineers and Facilities personnel to improve equipment reliability and process performance.
• Maintain cleanliness and organization of manufacturing areas and equipment.
• Follow all safety procedures associated with high-temperature equipment, inert gases, vacuum systems, and industrial manufacturing operations.

Basic Qualifications

• High school diploma or equivalent.
• 2+ years of experience operating industrial manufacturing equipment.
• Mechanical aptitude and strong troubleshooting skills.
• Ability to read and follow detailed work instructions and procedures.
• Ability to work flexible schedules, including night shifts, weekends, and overtime as required to support production needs.
• Ability to lift up to 50 lbs and work around industrial equipment.
• Ability to wear required PPE and work in a manufacturing environment.

Preferred Skills And Experience

• Experience operating furnaces, ovens, kilns, vacuum systems, or thermal processing equipment.
• Experience in aerospace, composites, ceramics, heat treatment, semiconductor, or other advanced manufacturing environments.
• Familiarity with process control systems, PLC interfaces, or industrial automation equipment.
• Experience performing basic equipment troubleshooting and maintenance activities.
• Forklift, crane, or rigging experience.

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

Other Duties

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.

Additional Eligibility Requirements

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.

Affirmative Action/EEO Statement

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, national origin, age, disability, genetic information, protected veteran status, or any other characteristic protected by applicable federal, state, or local law.

Castelion is committed to providing reasonable accommodations to qualified individuals with disabilities throughout the application and hiring process. If you require a reasonable accommodation to complete an application, participate in the interview process, or otherwise participate in the hiring process, please contact [e-mail]. Requests for accommodation will be considered on an individual basis and handled in accordance with applicable law.

Castelion is committed to fostering a workplace where employment decisions are based on qualifications, business needs, and the ability to perform the essential functions of the role, with or without reasonable accommodation.

EAR/ITAR Requirements

This position requires access to export-controlled information, and as such, employment (or hiring of a contractor) is contingent upon the candidate’s ability to access all applicable export-controlled information without additional export licensing being required by the Bureau of Industry and Security and/or the Directorate of Defense Trade Controls.