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Principal Engineer, Epitaxy

Company:
Coherent
Location:
Sherman, TX, 75090
Pay:
try, - 5+
Posted:
March 21, 2026
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Description:

Description

Primary Duties & Responsibilities

Interaction with design/product teams to plan and execute MOCVD growths aimed at realizing next generation and newly conceived epitaxial designs and structures.

Develop and execute DOE’s to define and optimize MOCVD process windows. Areas of improvement include capability, yield, throughput, and/or costs.

Work with Equipment Engineers to help identify and design reactor hardware modifications or MOCVD process changes as needed in support of new process development.

Presentation of development results and assigned manufacturing-based metrics to senior management, to internal interdisciplinary based teams, and to external customers.

Apply engineering and manufacturing principles to transition epi designs from development to pilot production. Support parametric analysis as needed for yield/performance issues.

Education & Experience

Masters degree or higher in engineering, physics, or chemistry, and 5+ years of related experience.

Experience with Quality Management System

Solid State Device Physics background in Optoelectronic devices required

5-10 years of epitaxial growth in a production environment preferred

Experience under ISO 9001 or similar Quality Management System

Experience with SPC, Six Sigma and Lean manufacturing

Experience with statistical software packages

Proficient with MS Office Software

Knowledge of SQL preferred

Excellent communication skills required

Skills

Familiarity with SPC, Gage R&R, DOE, MSA and other aspects of manufacturing and data analysis. JMP experience a plus

Ability to communicate and present complex technical concepts and results to multidisciplinary teams

Background in chemical engineering, electrical engineering, materials science, electronic engineering preferred but not essential.

Working Conditions

Working conditions are normal for an office environment and non-climate controlled manufacturing facility

Must be able to travel domestically 5% of the time and internationally 5% of the time.

Physical Requirements

Able to wear clean room attire for a Class 100/1000 clean room.

Able to stand for 5 hours a day.

Safety Requirements

All employees are required to follow the site EHS procedures and Coherent Corp. Corporate EHS standards.

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 Corp.:

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

Coherent Corp. is an equal opportunity/affirmative action employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.

If you need assistance or an accommodation due to a disability, you may contact us at .

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