Lead Product Engineer

Location: Sherman, TX, United States

The Product Engineer will lead cross‑functional teams to investigate yield excursions, identify root causes, and implement timely corrective and preventive actions (CAPA) using industry‑standard engineering methodologies. You will own yield bridge activities, supporting both new product introduction (NPI) and the transition to high‑volume manufacturing, ensuring robust process scalability and sustained yield performance.

Success in this role requires strong analytical capabilities, including the ability to perform complex data queries, statistical analyses, and commonality studies to drive effective troubleshooting and continuous yield improvement. The ideal candidate is detail‑oriented, data‑driven, and thrives in a fast‑paced environment focused on advanced photonics technology. 

Primary Duties & Responsibilities

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Education & Experience

• Phd Preferred with 4+ years of experience. 

Skills

• Hands-on experience with design, process, and characterization of optoelectronic device such as VCSEL, DFB laser, or photonic integrated chip. 

• Strong statistical data analysis skills (JMP or Minitab etc.). 

• Familiarity with semiconductor wafer fab operations (Manufacturing Execution System, process, and quality control, change management etc.) in a high-volume manufacturing environment is a plus. 

• Experience with optoelectronic device reliability testing and modeling is a plus. 

• Strong communication skills; adept at hosting effective meetings and facilitating actions and resolving conflicts. 

• Strong ability to drive actions and solutions through cross-functional teams. 

Working Conditions

Physical Requirements

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.

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!

Note to recruiters and employment agencies: We will not pay for unsolicited resumes from recruiters and employment agencies unless we have a signed agreement and have required assistance, in writing, for a specific opening.

About the Organization

II-VI Aerospace & Defense is a high technology company, offering careers in offices and campuses in California, Colorado, Florida, Pennsylvania, and Ohio. We work with emerging technology in areas of atmospheric sensing and imaging, adaptive optics, optical communications, coherent beam combining, and numerical performance analysis of atmospheric optics systems. II-VI A&D has recently been awarded several new government contracts and we are offering opportunities to leverage your technical experience and interpersonal skills for something more than a simple paycheck. If this sounds like the type of environment you are seeking at this point in your career, and if your background meets these qualifications, please apply. We will offer a competitive salary and benefits. Since II-VI A&D is a rapidly expanding organization, it means that significant opportunities exists for career advancement and professional development.Job Summary: We are seeking a highly motivated Product Engineer to support the rapid ramp‑up of next‑generation InP optoelectronic devices for datacom applications. In this role, you will be responsible for monitoring and improving yield performance across the entire manufacturing flow—including front‑end and back‑end wafer fabrication, die‑level electrical and optical testing, visual inspection, wafer acceptance testing, and subsequent reliability or parametric evaluations.