← All roles

Failure Analysis Engineer

Lumilens· Operations
Apply on company site
Chon BuriFull-timePosted 2mo ago

About the role

Role focused on reliability and performance of advanced optical transceiver products. Lead optical, electrical, and mechanical failure investigations, document findings, drive corrective actions, and develop test infrastructure and automation. Collaborates with R&D, supplier quality, and production, with occasional customer engagement.

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 analysisOptical transceiver testingSchematics and test equipmentData analysisCommunication
Last updated Aug 22, 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

More open roles at Lumilens