Quality Control Technician (all genders)

Coherent empowers market innovators to define the future through groundbreaking technologies, from materials to systems. We deliver innovations that resonate with our customers across a wide range of applications in the industrial, communications, electronics, and instrumentation markets. Headquartered in Saxonburg, Pennsylvania, Coherent maintains research and development, manufacturing, sales, and service facilities worldwide.

Our leading technology is built on the deep knowledge and extensive experience of our employees. This awareness is a central part of our corporate culture, which is shaped by openness and communication and fosters trusting collaboration. Each individual makes a valuable contribution to the success of the company with their expertise and sense of responsibility. The passion and commitment of our team drive our business forward! For more information, visit www.coherent.com.

At our Idar-Oberstein site, you will find a dedicated and supportive team in a dynamic environment where we work together and never lose our sense of humor. We offer you opportunities for personal and professional development, the chance to take on responsibility, the experience of working in an international team, and a very positive working atmosphere.

Your Responsibilities:

• Visual inspection of optical elements using a microscope and slit lamp (experience preferred; training provided)


• Documentation and preparation of test reports for products


• Inspection of products before and after optical thin-film coatings


• Verification and comparison of documented product dimensions


• Packing, labeling, and preparation of shipments (including quantity checks)


• Ensuring cleanliness and order in the work area


• Surface (OF) and volume inspection for incoming and outgoing goods control


• Incoming inspection of returned goods as part of complaint handling (RMA)


• Monitoring inventory of packaging materials


• Data entry in the Manufacturing Execution System (MES) (material and production data management)

Your Profile:

• Completed technical training or a comparable qualification (e.g., physics laboratory technician, precision optician, industrial mechanic, chemical-technical assistant) – career changers are also welcome


• Ideally, initial experience in optical quality control or handling microscopes/slit lamps


• Precise and careful working style combined with strong quality awareness


• Basic knowledge of documentation and report preparation


• Structured, reliable, and independent way of working


• Strong team spirit and willingness to take on new tasks

What We Offer:

• Flexible working time model within a 40-hour week


• Breakfast, fruit basket, coffee, tea, and water available free of charge


• International yet familiar environment with strong collegial support across locations


• Comprehensive employee support through an external counseling service


• Company bike leasing program (JobRad)


• Employee stock participation program


• Easy accessibility by car and public transport, plus free parking

Have we sparked your interest? If you would like to contribute to our company’s success as part of our great team, we look forward to receiving your application.

Please apply with your complete and compelling application documents (including a cover letter) via the button below.