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Failure Analysis Engineer

Lumilens· Operations
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TaiwanFull-timePosted 2mo ago

About the role

Failure Analysis Engineer at Lumilens, responsible for investigating optical, electrical, and mechanical failures in optical transceivers, leading root-cause analysis, documenting findings, and driving corrective actions. Involves developing test infrastructure, writing automation scripts, and occasional customer interaction to support reliability and manufacturing improvements.

Responsibilities

  • Responsible for optical, mechanical and electrical analysis/troubleshooting of optical transceivers returned from field deployment or internal testing.
  • Troubleshoot failures using schematics, test equipment, switches, fault isolation techniques, and Design of Experiments
  • Work with cross-functional teams, including supplier quality engineers, to determine the root cause(s) and appropriate improvement/corrective actions
  • Thorough documentation of all test and failure analysis results, including photographs, test data, and repair work
  • Interface with production databases to extract original shipment information, test data, and traceability information.
  • Assess field risk based on understanding of failure modes and field data utilizing available reliability tools
  • Analyze and present periodic and timely updates on failure analysis progress and reliability estimates to R&D, corporate teams, and customers
  • Engage in discussion with customers and respond to direct technical inquiries
  • Bring-up new internal and external test infrastructure to validate failure signatures observed in customer environments
  • Develop test scripts to operate and report data from customer switches
  • Experience in datacenter architecture is a plus

Qualifications

  • Minimum 5 yr. experience of related experience. Experiences in transceiver module tests at 400G, 800G, 1.6T, etc., are preferred.
  • BS/MS in physics, electrical/Mechanical engineering or other relevant field or equivalent experience
  • Extensive knowledge of and experience working with analog and digital circuits
  • Familiar with MSA and customer standards/requirements
  • Familiar with basic failure analysis techniques/methodologies
  • Strong device physics background
  • Fundamental understanding of OSA assembly and its periphery circuits
  • Knowledge of OSA assemblies, PCBA, and module manufacturing processes is an added advantage
  • Working knowledge of device characterization and its techniques
  • Strong data analysis skills
  • Excellent verbal and written communication skills

Skills

Required:Failure analysisTest infrastructure developmentSchematic analysisData analysisCommunication
Nice to have:×coupled with
Last updated Aug 8, 2026. Interested? Apply on the company site.

About Lumilens

Connectivity Platform for AI

Lumilens provides next-gen photonic interconnects for massively scaling out – and scaling up – AI compute infrastructure.

Photonic InterconnectsNext-Gen ManufacturingSystem-level knowledgeLumicore platformCPO/SiPh manufacturing
Company profileWebsite

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