Senior Process Engineer DUV Lithography

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

Job Summary

Key Responsibilities

• Develop, implement and optimize advanced DUV photolithography processes, including resist processing, exposure and pattern definition.
• Lead the development and qualification of new lithography processes, including definition of process windows, stability and reproducibility.
• Support the setup, commissioning and process qualification of new lithography equipment and track systems.
• Define and continuously improve lithography process flows in close collaboration with Process Integration and R&D.
• Perform process characterization, Design of Experiments (DOE) studies and data analysis to establish robust and high-yield processes.
• Drive problem solving and root cause analysis during process introduction and ramp-up.
• Collaborate closely with internal reference sites to transfer knowledge and align with proven process implementations.
• Act as technical driver for lithography process build-up and contribute to establishing internal expertise in this field.
• Interface with equipment suppliers to support process development, troubleshooting and optimization.
• Coordinate with engineering, metrology, facility and manufacturing teams to ensure successful process introduction, including the application of metrology methods (e.g. CD-SEM) to monitor, control and optimize lithography processes.

Qualifications

• Master's or PhD's degree in Engineering, Physics, Materials Science, Semiconductor Technology, Microtechnology, or related field.
• Several years of experience in semiconductors, photonics, MEMS, or advanced manufacturing environments.

Additional Skills and Requirements 

• Strong experience in lithography process development and manufacturing support.
• Experience with advanced lithography systems, preferably steppers or scanners.
• Demonstrated experience leading equipment installations, qualifications, or technology transfer projects.
• Experience with process characterization, DOE, statistical analysis, and process control methodologies.
• Strong technical leadership and problem-solving skills.
• Excellent project management and organizational capabilities.
• Ability to work effectively across global and cross-functional teams.
• Strong communication and stakeholder management skills.
• Data-driven approach to process development and decision-making.
• Self-motivated, proactive, and capable of driving complex projects independently.
• Very good written and spoken English and German skills.

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 on Wednesday, 19 August 2026.

If you require any adjustments or accommodations during the application process, please reach out to [email protected]. We are committed to creating an inclusive and accessible recruitment experience and encourage applications from individuals of all backgrounds.