Furnace Technician, Ceramic Matrix Composites

Cantos Ventures; Torrance (CA); On-site; USD 60,000 - 80,000; Full time

Benefits offered by this job

Employee Equity

Paid time off

Company holidays

Medical coverage

Dental & Vision

Job summary

Castelion is seeking a hands‑on Furnace Technician to support operation of our Ceramic Matrix Composite manufacturing processes in Torrance, CA. You will operate high‑temperature furnaces, monitor temperatures, pressures, and gas flows, and ensure production runs execute safely and efficiently.

The ideal candidate has 2+ years of experience in industrial manufacturing, strong mechanical aptitude, and troubleshooting skills.

Qualifications

• High school diploma or equivalent.
• 2+ years operating industrial manufacturing equipment.
• Mechanical aptitude with troubleshooting skills.
• Able to lift up to 50 lbs and work around industrial equipment.

Responsibilities

• Operate and monitor high‑temperature CMC processing furnaces and associated equipment.
• Load and unload production hardware, tooling, and fixtures per work instructions.
• Monitor process parameters (temperature, pressure, vacuum, gas flow, cycle progression).
• Respond to alarms and deviations, and document issues.
• Perform routine inspections and support preventative maintenance.
• Execute startup, shutdown, and changeover procedures.
• Support troubleshooting and document performance of equipment and processes.
• Maintain production records and shift handoffs clearly.

Skills

Mechanical aptitude

Troubleshooting

Reading instructions

Flexibility

Safety awareness

Education

High school diploma or equivalent

Tools

Furnace operation

Vacuum systems

PLC interfaces

Industrial automation equipment

Job description

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.

Benefits And Perks

• Employee Equity: Meaningful equity for all full‑time employees — share value has increased 150x in three years.
• Personal Time Off: Four (4) weeks of paid time off.
• Company Paid Holidays: Ten (10) company paid holidays.
• Medical: 100% employee covered and 80% of dependent coverage.
• Dental & Vision: 90% employees and 80% for dependents.
• FSA/HSA: Options to set aside pre‑tax dollars for eligible medical and dependent care expenses.
• Retirement: 401(k) plan offered to support long‑term financial growth.
• Paid Parental Leave: Up to 10 weeks for birthing parents, up to 4 weeks for non‑birthing parents, with additional paid pregnancy leave for CA employees.
• Meals & Catering: Frequently catered lunches and team meals, plus company‑covered meals when extra time or effort is required.
• Snacks & Beverages: Fully stocked kitchen with unlimited snacks and drinks.
• Performance & Fitness: $100 monthly fitness stipend.
• EV Charging: Onsite electric vehicle charging available.

Physical Demands

• Must be willing to work extended hours and/or weekends as needed.
• Must be able to travel up to 30%.
• Must be able to lift more than 50 lbs.

ITAR Requirements

To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident, (iii) Refugee, or (iv) Asylee, or be eligible to obtain the required authorizations from the U.S. Department of State.

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 designated, employment may be contingent upon obtaining and maintaining the required U.S. Government security clearance or other authorization, and satisfying any citizenship or other eligibility requirements imposed by applicable law, regulation, executive order, or government contract requirements. You will be notified if such requirements apply. Failure to obtain or maintain any required clearance or authorization may result in reassignment, leave, or separation from employment, consistent with business needs and applicable law.

Affirmative Action/EEO Statement

Employment with Castelion is governed on the basis of competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

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.