Staff Silicon Photonics Test Engineer

The role

This person will lead device and PIC characterization and test execution at the bench. They will build and scale lab and measurement infrastructure and set test methodology while mentoring engineers.

What you will do

• Define and own the characterization strategy for devices and PICs at chip and wafer level.
• Architect and lead high-speed measurements.
• Establish and drive best practices for test automation frameworks and measurement routines.
• Lead wafer probing, optical alignment, and test setup bring-up.
• Drive root-cause analysis and resolution of complex test and measurement issues.
• Analyze data and provide feedback to design and process teams.
• Own die sorting and yield improvement initiatives.
• Lead the transition from R&D to production test flows.
• Mentor and provide technical direction to junior test engineers.
• Collaborate cross-functionally to define test requirements and roadmaps.

Required qualifications

• Bachelor’s degree or higher in EE, Physics, or related field.
• Typically 8+ years of relevant experience.
• Deep, hands-on expertise in photonics device testing and optical lab work.
• Expertise with high-speed measurement equipment (VNA, oscilloscope, BERT).
• Strong understanding of optical communication systems.
• Proficiency with instrument control (VISA/SCPI).
• Extensive experience with optical alignment, fiber handling, and wafer probing.
• Ability to design, build, and scale lab test infrastructure.
• Detail-oriented, hands-on leader able to mentor others and drive execution in a fast-paced environment.

Nice to have

• Advanced proficiency in LabVIEW

About the company

Lumilens is building photonics infrastructure for AI supercomputing. It is a well-funded startup backed by Mayfield.