Senior Crystal Technician

Primary Responsibilities

• Prepare, verify, and document raw materials, dopants, seeds, and charge calculations per controlled procedures
• Assemble and inspect hot zones to ensure mechanical integrity and thermal symmetry
• Set up, operate, and monitor CZ growth systems for SGGG production; support additional oxide systems as needed
• Maintain operational control of key growth parameters to ensure repeatable execution within defined process windows
• Identify and respond to process drift, equipment instability, or infrastructure‑related interruptions
• Execute controlled heat‑up, growth, and cooldown sequences to minimize thermal stress and yield loss
• Perform in‑process and post‑growth evaluations in compliance with traceability and quality requirements
• Accurately record process data, deviations, and observations in controlled documentation systems
• Participate in root‑cause investigations related to yield loss and equipment stability
• Train and mentor junior technicians; review setups for procedural compliance
• Maintain strict adherence to safety and high‑temperature operating standards

• Minimum eight (8) years of experience in CZ crystal growth or high‑temperature oxide manufacturing
• Proven ability to independently operate complex crystal growth systems in a production environment
• Strong knowledge of thermal management, melt behavior, and process repeatability
• Experience with controlled documentation, deviation management, and manufacturing discipline
• Demonstrated troubleshooting capability for crystal growth systems and infrastructure‑related disruptions
• Mechanical aptitude for hot zone assembly and equipment upkeep
• Proficiency in data entry systems and Microsoft Office tools
• Strong attention to detail, safety awareness, and process ownership mindset

• Associate degree in Engineering Technology, Materials Science, or related technical discipline
• Experience with SGGG and/or similar high‑temperature oxide materials
• Experience supporting transition from development to standardized production
• Experience mentoring less‑experienced technicians

All employees are required to follow the site EHS procedures and Coherent Corp. Corporate EHS standards.

Depending on location, this position may be responsible for the execution and maintenance of the ISO 9000, 9001, 14001, and/or other applicable standards that may apply to the relevant roles and responsibilities within the Quality Management System and Environmental Management System.

Ensure adherence to company’s values (ICARE) in all aspects of your position at Coherent Corp.

Integrity – Create an Environment of Trust

Collaboration – Innovate Through the Sharing of Ideas

Accountability – Own the Process and the Outcome

Respect – Recognize the Value in Everyone

Enthusiasm – Find a Sense of Purpose in Work

Coherent Corp. is an equal opportunity/affirmative action employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.

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