Test Maintenance Engineer - High-Speed Optical Transceivers

Doist; San Jose (CA); On-site; USD 90,000 - 130,000; Full time

Job summary

Lumilens in San Jose, CA is seeking a Test Maintenance Engineer to own the setup, qualification, and ongoing maintenance of test equipment supporting 800G and 1.6T transceiver production lines. This role focuses on keeping testers qualified, reliable, and available for high-volume manufacturing, driving tester uptime, and ensuring measurement accuracy through GR&R and SPC.

You will collaborate with contract manufacturers, process engineering, and QA teams to bring testers online and keep the

Qualifications

• Requires a Bachelor’s in Electrical/Optical Engineering or related field.
• Direct experience with optical transceiver test equipment and measurements.
• Experience with 800G and 1.6T transceivers preferred.
• Must be able to conduct GR&R studies and apply SPC to test systems.
• Strong troubleshooting and data analysis skills; proficient in QA/QMS processes.

Responsibilities

• Set up, install, and qualify optical transceiver test systems for 800G/1.6T products with bring-up and calibration.
• Perform preventive and corrective maintenance to maximize tester uptime.
• Plan and execute GR&R studies and monitor SPC across testers and sites.
• Troubleshoot hardware, fixtures, and instrumentation; perform root cause analysis.
• Track tester uptime, MTBF/MTTR metrics, and drive improvement plans.
• Collaborate with process/product engineering for NPI tester changes and changes documented under QMS.

Skills

Optical testing

GR&R

SPC

Troubleshooting

MTBF/MTTR

Education

Bachelor's degree in Electrical or Optical Engineering

Tools

BERT

Power meters

TOSA/ROSA test stations

Environmental chambers

Automation equipment

Job description

Lumilens in San Jose, CA is seeking a Test Maintenance Engineer to own the setup, qualification, and ongoing maintenance of test equipment supporting 800G and 1.6T transceiver production lines. This role focuses on keeping testers qualified, reliable, and available for high-volume manufacturing, driving tester uptime, and ensuring measurement accuracy through GR&R and SPC.

You will collaborate with contract manufacturers, process engineering, and QA teams to bring testers online and keep the