MOCVD Technician

Coherent is a global leader in photonics, developing advanced laser, optical and materials technologies that enable semiconductor manufacturing, AI infrastructure, advanced communications and precision industrial applications worldwide.

In Zurich, our teams combine research, engineering and advanced manufacturing to develop high-power semiconductor laser technologies, optoelectronic components and engineered materials for industrial, data communications, life sciences and other high-precision applications worldwide.

Location: Zurich, Switzerland (Onsite) | Employment Type: Permanent, full-time

 

Job Summary

As a MOCVD Technician, you will support the operation, maintenance, and reliability of epitaxy systems used in semiconductor manufacturing.

This is a hands-on technical role focused on maintaining complex gas, vacuum, and reactor systems that enable the production of high-performance semiconductor laser materials. You will work closely with engineering and production teams to ensure safe, stable, and efficient operation of critical manufacturing equipment.

 

Key Responsibilities

Equipment Maintenance & Reliability

• Perform preventive and corrective maintenance on MOCVD reactors and associated infrastructure, including gas supply, abatement, and vacuum systems
• Support maintenance of vacuum pumps and gas systems

Troubleshooting & Repairs

• Troubleshoot mechanical, electrical, and process-related issues to ensure system uptime
• Replace and maintain components such as filters, piping, and gas handling systems

Safety & Operations

• Safely handle and exchange pressurised gas cylinders, following strict safety protocols

Monitoring & Process Stability

• Monitor and interpret system data and logs for fault diagnosis, for example SPC
• Ensure equipment availability and process stability in a production environment
• Document maintenance and service activities in line with quality standards

Testing & Systems Support

• Support the setup and maintenance of measurement and testing systems, for example wafer characterisation or similar diagnostic equipment
• Work with PLC-based control systems to identify and resolve operational issues

 

Qualifications

• Completed technical training, apprenticeship, or equivalent in Mechatronics, Electronics, Automation, Industrial Mechanics, or a related field
• Approximately 3+ years of hands-on technical experience, or a strong apprenticeship background
• Experience in semiconductor manufacturing, chemical processing, gas systems, vacuum systems, or similar industrial environments is a plus, but not required

 

Skills & Other Requirements

• Understanding of basic physics and technical systems, including pressure, gas flow, and electrical fundamentals
• Ability to read and interpret electrical schematics and technical diagrams
• Experience with maintenance and troubleshooting of industrial equipment
• Strong awareness of safety protocols, particularly in regulated or hazardous environments
• Ability to work in a cleanroom and safety-critical environment, including the use of respiratory protection equipment. Training will be provided.
• German working proficiency is required, and English language skills are a plus

 

Our Values

Ensure adherence to Coherent's ICARE values in all aspects of your position:

🤝 I – Integrity: Create an Environment of Trust

✨ C – Collaboration: Innovate Through the Sharing of Ideas

🎯 A – Accountability: Own the Process and the Outcome

🌍 R – Respect: Recognise the Value in Everyone

🚀 E – Enthusiasm: Find a Sense of Purpose in Work

Coherent is a global leader in lasers, engineered materials and networking components. We are a vertically integrated manufacturing company that develops innovative products for diversified applications in the industrial, optical communications, military, life sciences, semiconductor equipment, and consumer markets. Coherent provides a comprehensive career development platform within an environment that challenges employees to perform at their best, while rewarding excellence and hard-work through a competitive compensation program. It's an exciting opportunity to work for a company that offers stability, longevity and growth. Come Join Us!

Note to recruiters and employment agencies: We will not pay for unsolicited resumes from recruiters and employment agencies unless we have a signed agreement and have required assistance, in writing, for a specific opening.