Responsibilities
Lead end-to-end laser chip design activities, owning device architecture, epitaxial structure definition, grating design, and performance optimization from concept to release
Drive innovation in advanced semiconductor laser design through simulation, modeling, and data-driven optimization
Oversee experimental validation in close collaboration with engineering and manufacturing teams to ensure scalable, manufacturable, and robust designs
Lead structured root‑cause analysis and failure investigations, implementing corrective actions to improve device performance, yield, and reliability
Conduct electro‑optical characterization and reliability assessment to ensure product quality, robustness, and sustained performance
Skills & Qualifications
PhD in Physics, Optics, or Electrical Engineering, or a Master’s degree with 3+ years of relevant industry experience in semiconductor laser development
Deep expertise in semiconductor laser physics and InP‑based laser diode design, including epitaxial structure definition, optical mode engineering, and grating design
Strong understanding of semiconductor manufacturing processes, design for manufacturability, yield optimization, and process integration, with hands‑on experience in electro‑optical characterization and reliability assessment
Proficiency in advanced simulation and modeling tools (e.g., optical, electrical, thermal), statistical analysis software, and programming for data evaluation and automation
Demonstrated ability to lead projects and drive cross‑functional collaboration, with strong problem‑solving skills and structured root‑cause analysis capability
Excellent English communication skills (German beneficial)
Working Conditions
Full‑time employment
Safety Requirements
All employees are required to follow the site EHS procedures
Quality And Environmental Responsibilities
Depending on location, this position may be responsible for the execution and maintenance of the ISO 9000, 9001, 14001 and/or other applicable standards that may apply to the relevant roles and responsibilities within the Quality Management System and Environmental Management System
Culture Commitment
Ensure adherence to company’s values (ICARE) in all aspects of your position at Coherent:
Integrity – Create an Environment of Trust
Collaboration – Innovate Through the Sharing of Ideas
Accountability – Own the Process and the Outcome
Respect – Recognize the Value in Everyone
Enthusiasm – Find a Sense of Purpose in Work
We Offer
A dynamic, international environment
An appreciative and collegial corporate culture
Unique technical challenges focused on the products of tomorrow
Above-average social benefits
About Us
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!
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