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Senior Principal Process Engineer

Coherent

Listing collected from Coherent's career site. NextChapter is independent of Coherent.

Sunnyvale, CA · Posted October 5, 2026

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About the job

Primary Duties & Responsibilities

Demonstrate a strong understanding of optical components, free-space optics, fiber optic devices, and fiber collimator coupling technologies.

Source, evaluate, and select optical components based on product performance, quality, and cost requirements.

Build and assemble prototypes according to optical design specifications and engineering requirements.

Characterize, test, and troubleshoot fiber optic devices to identify and resolve performance issues.

Generate comprehensive build documentation, test reports, and technical summaries.

Develop and maintain Standard Operating Procedures (SOPs) to support consistent manufacturing and testing processes.

Participate in product qualification and reliability testing activities to ensure compliance with performance standards.

Support new product introduction (NPI) activities, including transferring products to manufacturing and providing ongoing production support.

Education & Experience

BS or MS in engineering or related technical fields.

7-15 years of related experience.

Skills

Have good understanding of basic optical components and fiberoptic devices.

Ability to work with little supervision and to manage assigned tasks and projects effectively.

Ability to read, learn and analyze complex materials and processes, search for solutions in the public domain as well as create/develop innovative solutions.

Ability to leverage knowledge and experience and apply them to solve problems resourcefully.

Ability to search, locate and work proactively with external suppliers in the areas of his/her expertise to engage other capabilities into the project tasks involved in.

Effectively managing multiple priorities and projects.

Ability to teach and train others within work group.

Excellent interpersonal communication and presentation skills.

Proficient computer skills, experience with Word, Excel, Outlook, PowerPoint, Email, internet and the ability to develop tools and/or special applications within these packages.

Fiber optic experience is a plus.

Familiar with UV epoxies is a plus

Fiber Optical module package is a plus

Working Conditions

Good office working conditions and Class 10000 clean-room environment, wearing smock with mask and gloves.

Physical Requirements

Able to move light equipment and tooling ( 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.:

I ntegrity – Create an Environment of Trust

C ollaboration – Innovate Through the Sharing of Ideas

A ccountability – Own the Process and the Outcome

R espect – Recognize the Value in Everyone

E nthusiasm – 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 talentacquisition@coherent.com .

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.