Senior Optical Transceiver Test​/Design Engineer

Job Title

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Duties & Responsibilities:

• Work on the test/design of PAM4 optical transceivers for datacenter, AI/ML, HPC applications
• Define and implement the testing methodology and strategy of optical transceivers to meet customers' requirements
• Work cross-functionally with FW/SW, OSA (optical sub-assembly), process development, Q&R to develop fully compliant optical transceivers
• Create various drawings, BOM and ECO as product design documents
• Address DFM issues
• Perform RF and link simulations as needed

Education & Experience:

• B.S. with 5 years of related experience, or M.S. with 3 years, or Ph.D. with less than 1 year
• Sound knowledge and expertise in high-speed RF devices, photonics, and optoelectronics
• Familiarity with high-speed optical transceivers

Skills:

• Excellent communication and presentation skills
• Analytical problem-solving skills for product design and debug
• Optical and electrical lab measurement skills, including script-based test automation
• Understanding of microprocessors and real-time control firmware
• Technical background in PAM4 optical transceiver designs a plus
• Background on high-density multiple-layer PCB designs a plus

Working Conditions:

• 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

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.

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 t

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.

• Job Identification 2013482
• Posting Date 07/13/2026, 08:26 PM
• Degree Level Master's Degree
• Job Schedule Full time
• Locations 48800 Milmont Drive, Fremont, CA, 94538, US (On-site)
• Pay Scale $111,063 - $150,000 per year