Materials & Process Technician - CVD (Night Shift, 230pm to 1130pm

Materials & Process Technician - CVD (Night Shift, 230pm to 1130pm)

Job Openings Materials & Process Technician - CVD (Night Shift, 230pm to 1130pm)

Castelion is moving incredibly fast to develop and deliver advanced defense systems at a time when execution matters more than ever. We believe focus and technical excellence are decisive advantages - and we are building a team that can deliver real capability, not just concepts.

This is a rare opportunity to join at an early stage, where your work will directly shape critical systems, influence major technical decisions, and have immediate, real-world impact.

Castelion is seeking a Night Shift CVD Operations Technician to support development of hypersonic flight thermal protection system (TPS) materials. This hands-on role is responsible for supporting chemical vapor deposition (CVD) reactor operations, maintaining equipment readiness, and executing standardized procedures to maximize reactor uptime and production throughput.

The successful candidate will work closely with engineering teams to prepare reactors for operation, perform reactor turnaround activities, monitor process execution, and maintain safe, reliable operation of reactor equipment. This role requires strong mechanical aptitude, attention to detail, and the ability to consistently execute established procedures with minimal supervision.

• Support overnight operation and monitoring of CVD reactors.
• Clean, inspect, and prepare reactors for production runs.
• Follow standard operating procedures and document process data.
• Assist with routine equipment maintenance and basic troubleshooting.
• Maintain work areas in a safe and organized condition.
• Work closely with engineering teams to develop process operations.

• High school diploma; technical certificate or associate degree preferred.
• 2+ years of experience in manufacturing, laboratory, or industrial environment.

• Mechanical aptitude and experience operating technical equipment.
• Ability to follow written procedures and maintain accurate documentation.
• Comfortable working a night shift in a production environment.
• Strong attention to detail and commitment to safe work practices.
• 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 to unplug, reset, and come back sharp—velocity matters, burnout doesn't
• Medical:
  We offer plans at 100% employee covered and 80% of dependent coverage
• Dental & Vision:
  We cover 90% employees and 80% for dependents to ensure you and your family have access to quality preventive and ongoing care
• FSA/HSA:
  To support long-term health and financial resilience, we offer FSA and HSA options that allow employees to set aside pre-tax dollars for eligible medical and dependent care expenses
• Retirement: 401k plan offered to support long term financial growth along side high-impact, high-velocity work
• Paid Parental Leave:
  We support growing families with meaningful time to bond and recover. Birthing parents are eligible for up to 10 weeks of paid leave, while non-birthing parents may take up to 4 weeks of paid leave. This time can be used for pre-natal care, pregnancy, childbirth, and related medical needs—ensuring every parent has the support they need during this important life moment.
  8-weeks of paid parental leave for all parents. 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 to keep you fueled throughout the day
• Performance & Fitness: $100 monthly fitness stipend to support peak performance and health, both inside and outside of work
• EV Charging:
  Onsite electric vehicle charging available for employees

• Must be willing to work extended hours and/or weekends as needed
• Must be able to travel up…