Job Description

Coherent Corp. is the global leader in photonics, designing and manufacturing advanced laser, optical, and material technologies used by customers worldwide across industrial, communications, electronics, and instrumentation markets.

With a broad global footprint and deep engineering capability, we combine advanced manufacturing, applied innovation, and customer collaboration to deliver high-performance solutions that enable critical technologies and solve complex, real-world challenges.

About Coherent in Switzerland

Coherent Corp. Zurich is a key research and production hub specializing in advanced photonics, engineered materials, and high-power semiconductor laser technologies. Our teams develop and manufacture opto-electronic components and laser diodes for industrial, optical data transmission, life science, and high-precision applications, combining strong in-house R&D with state-of-the-art semiconductor manufacturing in an engineering-led culture.

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

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 (gas supply, abatement, 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 pressurized gas cylinders, following strict safety protocols
• Monitoring & Process Stability
  • Monitor and interpret system data and logs for fault diagnosis (e.g. 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 (e.g. wafer characterisation or similar diagnostic equipment)
  • Work with control systems (PLC-based) to identify and resolve operational issues

Qualifications

• Completed technical training, apprenticeship, or equivalent in Mechatronics, Electronics, Automation, Industrial Mechanics, or a related field
• ~3+ years of hands-on technical experience (or 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 (pressure, gas flow, 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 use of respiratory protection equipment (training provided)
• German working proficiency required and English language skills is a plus

Application Process

All candidates who wish to apply should submit a CV and cover letter outlining their interest in the position and how their skills and experience align with the requirements of the role.

Applications for this role close end of day on Friday, 29 May 2026.

If you require any adjustments or accommodations during the application process, please reach out to allegra.mousaw@coherent.com We are committed to creating an inclusive and accessible recruitment experience and encourage applications from individuals of all backgrounds.

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.

Industrial laser systems are used all over the world. With over 30 employees, our site in Belp contributes to the company's success by developing intelligent processing heads and optical components.

It's an exciting opportunity to work for a company that offers stability, longevity and growth. Come Join Us!