R&D Test Technician

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.

About Coherent In Switzerland

Coherent Corp. Zurich is a key research and production hub specialising 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, Onsite |
Employment Type: Permanent, full‑time

Job Summary

The R&D Test Engineer provides technical support in software and setup development for the Advance Technology team, leading activities to implement new experimental setups, carrying out testing of laser devices, setup maintenance and test optimisation procedures.

• Development of specialised tests in collaboration with R&D engineers
  • Design and CAD drawing
  • Acquiring necessary components
  • Building the test setups
  • Writing user‑friendly software for automation and data acquisition
• Maintenance of existing R&D setups
• Improvement and optimisation of existing setups
• Carrying out tests and providing initial test data analysis
• Reporting and documentation

About You

You will have an A.S., B.S. or higher from a technical high school or university, specialising in either electrical engineering or mechanical engineering.

Previous practical experience and/or apprenticeship are beneficial.

• Good analytical, problem‑solving, technical, and communication skills.
• Responsible for testing processes on semiconductor laser devices, specifically DC/RF electro‑optical tests (on wafer‑and‑packaged device level).
• Develop and implement new testing processes in collaboration with R&D.
• CAD skills.
• IT knowledge in test programming:
  Python, Lab View, Lab View Vision, databases and SQL.
• Mechanical design, optics, electronics.
• Excellent verbal and written communication skills in an international environment (German, English).

Current employees who wish to apply should submit a cover letter detailing 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, 6 March 2026
.

If you require any adjustments or accommodations during the application process, please reach out to Al
. 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.

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.