Sr. Principal Hardware Architect for Optical Transceivers

Posted: Thursday, 12 February 2026
Valid Thru: Saturday, 14 March 2026
Index Requested on: 02/13/2026 02:04:15
Indexed on: 02/13/2026 02:04:15

Location: Fremont, CA, 94536, US

Industry: Advertising and Public Relations
Occupational Category: 13-0000.00 - Business and Financial Operations
Type of Employment: FULL_TIME

Coherent Corp. is hiring!

Description:

Primary Duties & Responsibilities
  • Lead the design of PAM4 optical transceivers for datacenter, AI/ML, HPC applications from concept to high-volume production ready
  • Define and implement the electrical/optical architecture of pluggable/co-packaged optical transceivers meeting customers' requirements
  • Work cross-functionally with FW/SW, OSA (optical sub-assembly), process development, Q& R, program/product management to develop fully compliant optical transceivers
  • Lead the integration of optical, hardware, FW/SW, and process, including troubleshooting and yield improvement
  • Create various drawings, BOM and ECO as product design documents
  • Address/resolve DFM issues
  • Hold the architecture, EVT, DVT phase reviews to lead the design to NPI stage
  • Perform RF and link simulations as needed

    Education & Experience
  • B.S. with typically 10 years of related experience, M.S./Ph.D. preferred
  • Strong knowledge and expertise in high-speed RF design, photonics, and optoelectronics
  • Expertise on high-speed optoelectronic and RF components - designs, specifications, characterization, performance, and qualification
  • Solid foundation of understanding: signal/power integrity (SI/PI), system integration of FW/SW and HW with respect to functionality and performance, optomechanical design

    Skills
  • Excellent communication and presentation skills
  • Strong analytical problem-solving skills for product design and debug
  • Hands-on technical background in PAM4 optical transceiver designs - EML, Silicon Photonics, DSP, driver, TIA, PCB/PCBA, electrical and optical packaging
  • High-density multiple-layer PCB designs
  • Experience in RF analysis and design using modeling tools such as CST or HFSS
  • Optical and electrical lab measurement skills, including script-based test automation

    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 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 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.Job Summary:

    • Responsibilities:

    Please review the job description.

    Educational requirements:

    • high school

    Desired Skills:

    Please see the job description for required or recommended skills.

    Benefits:

    Please see the job description for benefits.

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