Demo

Principal Switch Test Engineer

Coherent Corp. US
Fremont, CA Full Time
POSTED ON 1/13/2026
AVAILABLE BEFORE 3/13/2026

Primary Duties & Responsibilities

  • Lead on the design of the Switch-Based test infrastructure to standardize and facilitate the implementation of Switch-related test activities, such as Switch Characterization, Switch-based product optimization/interop study and Switch-based DVT/PVT test.
  • Continuously improve the test coverage by adding new test cases or improving the configurability of the existing test cases to quickly accommodate the new test requirements from customers, design teams or QA organization for all affected products
  • Collaborate with IT to design the proper database and DVT request portal to standardize and regulate the Switch-based DVT test submission and data reporting 
  • Establish the proper revision control mechanism for the test platform and related test cases.
  • Regular Interaction with various switch vendors for co-debugging or feature request.
  • Collaborate with other test development engineers and transceiver engineers to create a co-development environment with certain rules established in a way to allow more effective sharing of the special test scripts developed by users for different products. 
  • Assist module design team/QA team for urgent optical transceiver evaluation, optimization and debugging on switches by providing customized test scripts or support on live debugging with real-time script modification.
  • Need light travel to other sites to facilitate the implementation of the Switch-based test platform and database integration.  

 

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, C#, C/C
  • Strong data analysis skills with SQL, JMP, MS Excel.
  • Strong skills in communication, presentation and documentation.
  • Familiar with optical transceiver product characterization, validation and general failure analysis
  • Familiar with or capable of quick learning on Switch OS, such as Sonic by MSFT, Cumulus by Nvidia and VEOS by Arista. 
  • 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

 

 

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 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.


 

Salary.com Estimation for Principal Switch Test Engineer in Fremont, CA
$191,497 to $224,061
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