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Senior Principal Optoelectronics Engineer

Coherent

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

Fremont, CA · Posted July 28, 2026

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About the job

Primary Duties & Responsibilities

Model and design silicon photonics based laser with III-V gain materials, including InP Quantum Well (QW) and GaAs Quantum Dot (QD).

Work closely with III-V gain material teams in characterizing laser gain material parameters, optimizing device performance, and preparing samples for laser manufacturing.

Work closely with silicon photonics design teams in defining laser parameters, simulating laser performance, and working out silicon photonics laser processing procedures.

Collaborate with foundries and process teams in III_V integration onto silicon, laser fabrication, testing, problem solving, and performance optimization

Collaborate with Product Line Management and R&D Management to generate development schedules that achieve key project milestones, NPI deliverables, business requirements, and customer satisfaction.

Manage CPO/NPO products through R&D NPI Phase Gate process, meet NPI deliverable, and deliver qualified products to the global Operations team.

Light travel for development activities: supplier engagement, design improvement, process development, and problem solving.

Education & Experience

MS/PhD in an engineering or science discipline plus 5+ years of relevant experience

Experience with semiconductor laser design and silicon photonics.

Experience with CPO, optical transceivers or components desirable.

Experience with New Product Introduction (NPI) and/or Product Lifecycle Management processes

Experience of managing cross-functional teams successfully, interacting with a broad range of functions, skills, cultures, and personalities.

Skills & Other Requirements

Previous experience as an engineer in laser and silicon photonics R&D.

Strong problem solving, critical thinking, and risk management skills.

Strong communication, planning, and organizational skills.

Highly self-motivated with a strong multi-disciplinary background is essential.

Working Conditions

This position is on-site full time.

May require occasional off-site meetings or travel

Regular use of a computer and other office equipment is necessary

Interaction with team members and external contacts is a regular part of the job

May require occasional overtime and flexibility in work hours to accommodate the executive’s needs

Physical Requirements

Sitting for extended periods while working on a computer or conducting meetings.

Use of hands and fingers for typing, writing, and handling documents.

Occasional lifting of objects or materials up to 20 pounds for administrative tasks.

Ability to communicate verbally and in writing.

Mobility within the office environment to attend meetings or interact with colleagues.

Safety Requirements

All employees are required to attend scheduled training, follow the site EHS procedures and Corporate EHS standards. This includes the use of proper protective equipment (PPE) as required by the job responsibilities.

Managers will ensure that all safety and environmental procedures are followed consistently. They will ensure that risk assessments are performed, proper training, work instructions, required PPE is available, and will monitor compliance.

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 .

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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.