Senior Principal Optical Engineer
Coherent
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Santa Clara, CA · Posted April 14, 2026
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November 2026
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- #1Best cities for product pay after cost of living$224k · of 14
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How AI is used in this kind of work
AI use among engineers, all other is little observed so far. Measured exposure for engineers, all other: 7% (little observed).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
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About the job
Primary Duties & Responsibilities
Conduct all activities in a manner consistent with Coherent’ s corporate values and Code of Conduct.
Provide professional technical support to internal departments, sales and marketing teams worldwide, and customers as needed.
Introduce and help develop efficient and improved methods for optical system assembly and inspection as needed.
Involved directly with new product development projects incorporating optical, electrical, mechanical, software and system integration engineering functions.
Ensure meeting project schedule and timelines and milestones, and the completion of complex cross-disciplinary activities within project team.
Conduct and well manage design documents, ECR/ECO, design change implementation in new product release process.
Communicates project status and progresses to management as appropriate, including recommendations on resources, process development, and product improvement and management.
Individual contributor on the project team in addition to project management responsibilities.
Keep abreast of customer needs and new competitive products, assessing the related impact on company projects/products development plans.
Identify, select, and implement new development, component, manufacturing and/or testing technologies.
Maintain technical relationships with key suppliers, as needed.
Education & Experience
MS or Ph. D in Optics, Optical Engineering, Opto-mechanical instrumentation. Advanced education qualifications would be a plus. Candidates with suitable hands-on experience with a BS degree will be considered in exceptional circumstances.
10+ years’ experience in design, simulation, testing, and inspection of fiber optics, optical imaging systems, laser, illumination or other optical systems.
A minimum of 5 years’ experience in optical design and simulations for fiber optics, Si-Photonics, laser, life science, LiDAR, machine vision and other related industries.
Experienced in working with customers and engineering team to effectively and successfully bring optical products through product life cycle from prototyping to volume production.
Skills
Strong foundation in Si-Photonics, optics, physics, fiber optics, optical networks system.
Proficient in using optical design tools – e.g. OptiStudio, Code-V etc. to do Optical system design, simulations, optimization, tolerance analysis.
Hands-on experiences in optical design for industries within semiconductors, fiber optics, machine vision, and laser. Experience of Co-package optical design and architecture is preferable.
Knowledgeable and experienced with precision mechanical components and manufacturing, materials for fiber optical modules and assemblies.
Able to utilize various equipment and to develop test plans for optical devices and optical components, assemblies and systems for engineering and production.
Demonstrate ability to DfX, DfM and to solve complex issues in optical design and opto-mechanical product development.
Preferred experience of working in a fast paced optical or Si-photonics manufacturing environment, especially dealing with multiple projects of optical and opto-mechanical assemblies.
Be flexible and work efficiently in a multi-site, cross-organizational, cross-cultural, global team environment
Leadership and the ability to work highly independently with minimal guidance from supervisors on specific tasks
The ability to work and deliver on aggressive schedules.
Ability to communicate in Mandarin Chinese is preferable.
Preferred U.S. Citizen or Permanent Residence due to possible sensitive IP discussion with U.S. customers.
Able to develop long-term plans, programs and goals, to evaluate work accomplishments and provide effective feedback.
Able to learn, share, work with, and interpret software and test equipment based on requirements.
Demonstrate a thorough knowledge of evaluation methods through product development.
Good independent planning skills to successfully complete multiple and cross-functional projects.
Creative, analytical and structured problem-solving capabilities.
Excellent communication, interpersonal and presentation skills.
Capability to teamwork and collaborate among different functions.
Capable in technical communication and being able to express effectively to manufacturing personnel.
Ability to work in cross-organization, cross-culture, and global team environment.
Ability to travel domestically and internationally.
Working Conditions
This position is hybrid / remote
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.
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.
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.