Sr. Principal - Switch Systems Test Engineer

Posted An Hour Ago
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Fremont, CA, USA
In-Office
Senior level
Industrial • Manufacturing
The Role
Leads system-level switch-based design validation testing for high-speed optical transceiver products, including test coverage, automation, failure analysis, and corrective actions. Collaborates with design, QA, vendors, partners, and customers to debug link stability issues and optimize performance. Supports switch, NIC, traffic generator, and test-equipment bring-up, while developing standardized testing across global R&D sites. The role requires strong optical and electrical measurement, data analysis, programming, communication, and occasional travel.
Summary Generated by Built In

Primary Duties & Responsibilities

  • Lead on 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 the continuous development, implementation and improvement of the testing configurations, the test coverages and test automation at system level. 
  • Coordinate on the global XDVT activities, and assist/advise on the XDVT failure analysis and related corrective actions by working closely with different design teams on all R/D sites. 
  • Assist module design team/QA team for resolving urgent customer issues found at system level. Capable of directly interfacing with Switch-vendor, DSP vendor and customers for co-debugging on the link stability issues as part of joint efforts with all internal cross-functional teams. 
  • Co-develop the tuning/optimization algorithm on Switch-based setup for LPO, LRO and XPO products with design teams, business partners and our customers. 
  • Support our internal teams to bring up the special switches, NIC cards, traffic generators and other test equipment, and help on getting the timely technical support from our equipment vendors or business partners. 
  • It is a Plus if the candidate is capable and motivated to develop and expand engineering engagement with our business partners to support our overall R/D and production activities for our 1.6T and 3.2T pluggable products as well as CPO/NPO product lineup. 
  • 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. in Electrical Engineering or related field with 9+ years of relevant industry experience, or
  • M.S. in Electrical Engineering or related field with 7+ years of relevant industry experience.
  • Demonstrated experience in optical transceiver validation, system-level debugging, product characterization, and cross-functional technical collaboration.
  • Experience working in data center networking, optical communications, or high-speed interconnect technologies is strongly preferred.

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 standards 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


 

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 [email protected].

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 #IND
About UsCoherent 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.


Skills Required

  • Bachelor’s degree in Electrical Engineering or a related field with 9+ years of relevant industry experience
  • Master’s degree in Electrical Engineering or a related field with 7+ years of relevant industry experience
  • Experience in optical transceiver validation, system-level debugging, product characterization, and cross-functional technical collaboration
  • Strong laboratory optical and electrical measurement skills
  • Hands-on experience with optical test instruments such as DCA, OSA, and BERT
  • Strong data analysis skills using SQL, JMP, and Microsoft Excel
  • Strong communication, presentation, and documentation skills
  • Familiarity with optical transceiver product characterization, validation, and failure analysis in switch-based systems
  • Basic knowledge of IEEE test specifications and methodologies
  • Strong programming skills in Python
  • Experience in data center networking, optical communications, or high-speed interconnect technologies
  • Familiarity with switch operating systems such as SONiC, Cumulus, and Arista EOS
  • Experience with link performance optimization on switch rack systems in data centers
  • Solid knowledge of PCBA, RF, and fiber optics

Coherent Corp. Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Coherent Corp. and has not been reviewed or approved by Coherent Corp..

  • Healthcare Strength — Healthcare Strength: Health coverage includes multiple national and region-specific options (UHC HDHP/HSA, PPO, EPO; Kaiser in CA; Health Net in OR) plus separate dental (Delta Dental) and vision (VSP), indicating strong breadth and choice. This breadth supports a solid total package in certain roles and locations.
  • Equity Value & Accessibility — Equity Value & Accessibility: An Employee Stock Purchase Plan allows buying shares at 85% of market price with contributions up to 10% of pay, expanding ownership access. This feature can materially bolster total rewards even when base pay is mid‑pack.
  • Leave & Time Off Breadth — Leave & Time Off Breadth: Paid time off includes 15 vacation days for new hires, 10 paid holidays, and additional paid time during a December shutdown. This structure provides a clear and competitive baseline for time away from work.

Coherent Corp. Insights

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The Company
HQ: Saxonburg, PA
3,569 Employees

What We Do

Coherent empowers market innovators to define the future through breakthrough technologies, from materials to systems. We deliver innovations that resonate with our customers in diversified applications for the industrial, communications, electronics, and instrumentation markets. Headquartered in Saxonburg, Pennsylvania, Coherent has research and development, manufacturing, sales, service, and distribution facilities worldwide. For more information, please visit us at coherent.com.

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