Failure Analysis Engineer

Job Title

Failure Analysis Engineer

Role Summary

Lead investigations into optical, electrical, and mechanical failures of advanced optical transceivers to identify root causes and drive corrective actions. Work closely with R&D, supplier quality, and production teams to document findings, assess field risk, and improve product design and manufacturing.

This is a hands-on engineering role that includes fault isolation, test infrastructure bring-up, automation scripting, and occasional customer technical engagement.

Experience Level

Mid-level — minimum 5 years of relevant failure analysis, test, or transceiver experience.

Responsibilities

Investigate returned modules and test failures, document results, and support corrective actions across engineering and production.

• Perform optical, electrical, and mechanical failure analysis of transceivers from field returns and internal testing.
• Troubleshoot using schematics, test equipment, switches, fault isolation techniques, and Design of Experiments.
• Develop and bring up internal and external test infrastructure to reproduce and validate failure signatures.
• Create automation/test scripts to operate and collect data from customer switch environments.
• Interface with production databases to retrieve shipment, test, and traceability data.
• Assess field risk and estimate reliability using available tools and field data.
• Document test results with data, photographs, and repair records; produce periodic reports and presentations for R&D and customers.
• Collaborate with supplier quality and production to define corrective and preventive actions.
• Respond to direct technical inquiries from customers as needed.

Requirements

Must-have technical skills and experience; a few nice-to-have items listed separately.

• Must-have: Minimum 5 years of related failure analysis or test experience.
• Must-have: Extensive experience with analog and digital circuits and device characterization techniques.
• Must-have: Familiarity with failure analysis methodologies, fault isolation, and use of laboratory test equipment.
• Must-have: Strong device physics background and working knowledge of OSA assembly periphery circuits.
• Must-have: Strong data analysis skills and clear verbal and written communication.
• Nice-to-have: Experience testing transceiver modules at 400G, 800G, 1.6T or similar high-speed systems.
• Nice-to-have: Familiarity with MSA/customer standards and datacenter architecture.
• Nice-to-have: Knowledge of OSA assemblies, PCBA, and module manufacturing processes.

Education Requirements

BS or MS in Physics, Electrical Engineering, Mechanical Engineering, or a related technical field — or equivalent practical experience.

About the Company

Company: Lumilens

Headquarters: San Jose, CA, USA

Lumilens develops integrated photonics and optical interconnect solutions for high-speed data communication and chip-to-chip interfaces, focusing on optical front-end hardware and co-packaged optics for advanced semiconductor systems.