Senior Optical Transceiver Applications Engineer

Vital Materials Co., Limited; Cupertino (CA); On-site; USD 120,000 - 180,000; Full time

Job summary

Vital Materials Co., Limited is seeking an Application Engineer for high-speed optical transceivers in the Bay Area to support hyperscale AI data center deployments. You will diagnose issues, coordinate interoperability testing, and translate customer requirements into engineering feedback, ensuring smooth evaluation to deployment.

You will work closely with Sales and Product leadership to enable rapid evaluations, perform bring-up and verification, and document results for customers and

Qualifications

• 5–10 years of experience in optical networking, data center optics, high-speed links, or related test/validation.
• Strong understanding of high-speed optics and transceiver systems, including BER and signal integrity.
• Hands-on experience with lab equipment and testing workflows for transceiver evaluation.
• Ability to write clear technical documentation and communicate with technical and non-technical stakeholders.
• Experience working cross-functionally with Sales and product/engineering teams.

Responsibilities

• Establish and maintain evaluation/test capabilities in Bay Area to support product evaluation and customer demonstrations.
• Support customer transceiver evaluations with hands-on assistance (bring-up, configuration, verification, troubleshooting).
• Plan and execute interoperability and acceptance testing per customer and internal test plans.
• Coordinate lab work and testing logistics with hardware/firmware/systems/test teams.
• Analyze and debug link performance issues (BER, eye diagrams, signal integrity, thermal/power behavior).
• Prepare technical documentation for customers and internal teams: reports, procedures, troubleshooting notes, results summaries.
• Support pre-sales and post-sales technical engagements with Sales (demos, Q&A, evaluation support).
• Capture requirements, document gaps, propose mitigations, and translate customer needs to product/engineering.
• Provide RF/optical/DSP guidance where applicable and ensure customer setups align with operating conditions.
• Contribute to continuous improvement of evaluation/test processes and customer success playbooks.
• Participate in customer escalations for deeper technical root-cause work.

Skills

Optical networking

Data center optics

Transceivers

BER analysis

Signal integrity

Lab testing

Technical documentation

Cross-functional collaboration

Customer support

Education

PhD in EE/Photonics/Optical Engineering

Tools

Lab equipment

Interoperability testing tools

Job description

Vital Materials Co., Limited is seeking an Application Engineer for high-speed optical transceivers in the Bay Area to support hyperscale AI data center deployments. You will diagnose issues, coordinate interoperability testing, and translate customer requirements into engineering feedback, ensuring smooth evaluation to deployment.

You will work closely with Sales and Product leadership to enable rapid evaluations, perform bring-up and verification, and document results for customers and