Principal Engineer - Switch Systems Test Engineer
Skills
About the role
Primary Duties & Responsibilities
Assist in the standardization and implementation of Switch-based DVT (XDVT) test coverage for all new 800G, 1.6T and future 3.2T optical transceiver products. This includes continuously defining the new test coverage and streamlining the XDVT submission, verification and data reporting process.
Coordinate on the global XDVT activities, and assist/advise on the XDVT failure analysis working closely with different design teams from all R/D sites.
Assist module design team/QA team for urgent optical transceiver evaluation, optimization and debugging on switches
Able to directly interface with Switch-vendor and DSP vendor for co-debugging on the very challenging link flap issues as part of joint efforts by cross-functional teams.
Co-develop the special module tuning/optimization algorithm on Switch-based setup for LPO and LRO products by collaborating with design teams, customers and/or switch vendors.
Establish the Switch-based knowledge base in three areas:
Switch study/characterization as part of design guidance
Switch-based product evaluation/optimization methodologies and lessons learned
Issues found on customer switch systems: Lesson learned, corrective actions and suggested design improvement.
Work closely with Switch test engineer to bring up the new types of switches and have regular interaction with various switch vendors for co-debugging and feature request.
Need light travel to other sites to facilitate the implementation of the Switch-based test platform and standardize the XDVT execution.
Education & Experience
B.S. EE degree with 9-year experience or M.S. EE degree with 7-year experience required
Skills & Other Requirements
Strong programming skills with Python is preferred.
Familiar with optical transceiver product characterization, validation and failure analysis in Switch-based system
Familiar with or capable of quick learning on Switch OS, such as Sonic by MSFT, Cumulus by Nvidia and VEOS by Arista.
Experience in link performance optimization on Switch rack system in data center is a Plus.
Basic knowledge in IEEE standard in terms of test specs and test methodologies
Solid knowledge in PCBA, RF and Fiber optics is highly preferred
Strong laboratory optical and electrical measurement skills required
Hands-on experience in optical test instruments, such as DCA, OSA, BERT, etc., is a Must
Strong data analysis skills with SQL, JMP, MS Excel.
Strong skills in communication, presentation and documentation.
Working Conditions
This position is On-Site
May require occasional off-site meetings with customers/Switch/DSP vendors.
May require light travel to other R/D sites in Asia area.
Extensive use of the computer and other test equipment
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 some urgent tasks
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.:
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
If you need assistance or an accommodation due to a disability, you may contact us at talentacquisition@coherent.com.
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ABOUT US
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 INFO
Job Identification
2013312
Posting Date
07/02/2026, 11:47 AM
Degree Level
Bachelor's Degree
Job Schedule
Full time
Locations
48800 Milmont Drive, Fremont, CA, 94538, US
(Hybrid)
Pay Scale
$ 114,375 - $ 195,875 per year
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Compensation
This Teacher role pays $114k-$196k/yr. Within typical range for teacher roles in United States.
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