Senior Process Engineer

Company Profile 

Coherent empowers market innovators to define the future through breakthrough technologies, from materials to systems. We deliver innovations that resonate with our customers in diversified applications for the industrial, communications, electronics, and instrumentation markets. Headquartered in Saxonburg, Pennsylvania, Coherent has research and development, manufacturing, sales, service, and distribution facilities worldwide. For more information, please visit us at

The Finisar Germany GmbH, a Coherent subsidiary serves multiple businesses within Coherent. One focus area is the development of leading-edge high performance, high capacity optical front-end solutions for long reach optical transmission. A special field is utilizing advanced photonic technologies in support of driving highly integrated coherent products. Another focus area is high speed detectors, scaling up to frequencies of up to 100GHz, utilized in research and test & measurement but more and more in communication applications too. 

We owe our worldwide technological leadership to the profound knowledge and experience of our employees. This awareness characterizes our corporate culture - which is open and communicative and ensures trusting cooperation. Each individual contributes to the company's success with his or her knowledge and responsibility. The passion and commitment of our team are the engine of our company

Responsibilities

We are looking for a Process Engineer to support the development and optimization of optical coupling processes for advanced optical communication products. A key part of this role is working with automated alignment and assembly equipment (e.g., Ficontec platforms). Therefore, the ideal candidate brings not only process engineering expertise, but also a solid conceptual understanding of programming structured, multi-step automated process flows.

You will work on high-precision coupling steps connecting lasers, modulators, fibers, lenses, and other optical components, while collaborating closely with design, production, and quality teams.

• Develop, optimize, and maintain optical coupling processes for optical communication modules (fiber attach, active/passive alignment, lens/waveguide coupling, etc.).
• Design and refine automated process sequences on alignment equipment (e.g., Ficontec)
• Analyze process data, perform structured experiments, and improve yield, stability, and throughput.
• Support process qualifications, documentation, and smooth transfer into manufacturing.
• Troubleshoot alignment and assembly issues and implement corrective actions.
• Create and maintain technical drawings, process documentation, and work instructions.
• Provide hands-on support during pilot builds, production ramp-up, and continuous improvement activities.

Qualifications

• Degree in Physics, Photonics, Electrical Engineering, Microsystems Engineering, Semiconductor Technology, or similar.
• Several years of experience in optoelectronics, photonics assembly, semiconductor processing, or precision optical assemblies.
• Good understanding of optical coupling and alignment principles.
• Conceptual programming/automation understanding (workflow logic, sequence control, multi-step processes) 
• Basic skills in Python, LabVIEW, PLC, or similar languages/environments used for automation. 
• Good English skills. German is a plus.
• Familiar with working in cross-functional teams.

Your Chance

We offer an interesting and diversified opportunity in an internationally minded engineering team of a market-leading high-tech company in the field of high-speed optoelectronic components. You will find a creative and productive work atmosphere in a flexible work environment that shares the desire to succeed and a fascination for technical challenges and technological progress. We provide the following additional benefits:

• Flexible working hours
• 30 vacation days (overtime on top)
• Health benefits package including additional health insurance or fitness program
• Financial support for public transport or parking spot 
• Bike lease program
• Bonus and private pension scheme

Your Application

If you are interested, then please apply using the button below. We are looking forward to hearing from you. Feel free to contact Lisa Weiland at for further information.