Staff Silicon Photonics Test Engineer

Uncover; San Jose, Northern (CA, KY); Hybrid; USD 150,000 - 190,000; Full time

Job summary

Lumilens in San Jose, CA, is seeking a Staff Silicon Photonics Test Engineer to lead device and PIC characterization at the bench and to scale lab infrastructure. You will define test strategies, architect high‑speed measurements, and mentor junior engineers across the team. Strong hands‑on experience with VNA, oscilloscope, BERT, LabVIEW, Python, and optical alignment is required.

Qualifications

• Hands-on photonics device testing and optical lab work.
• Experience with high-speed measurement equipment preferred.
• Strong understanding of optical communication systems.

Responsibilities

• Define and own characterization strategy for devices and PICs at chip/wafer level.
• Architect and lead high-speed measurements and data analysis.
• Develop and maintain test automation frameworks (LabVIEW/Python).
• Lead wafer probing, optical alignment, and test setup bring-up.
• Mentor junior test engineers and collaborate with design/process teams.

Skills

Photonics testing

High-speed measurements

Optical comms systems

Education

Bachelor's degree or higher in EE/Physics or related

Tools

LabVIEW

Python

VISA/SCPI

Job description

# Staff Silicon Photonics Test EngineerLumilens • San Jose, CA • • 2h agoSave this role or tell us whether you want more jobs like it.**ABOUT LUMILENS**At Lumilens we are building the critical photonics infrastructure that powers tomorrow’s AI supercomputing. From chip-to-chip optical interconnects to scalable photonic engines, Lumilens is unlocking a new era of computing faster, cooler, and massively more efficient.We’re a well-funded startup backed by Mayfield and led by veterans who’ve built and scaled some of the most transformative technologies in the industry. This isn’t incremental innovation, it’s a ground-floor opportunity to rethink the optical layer from the silicon up. You’ll work alongside a team of world-class engineers solving some of the hardest challenges in optics, systems, and scale. Every line of code, every design decision, every breakthrough you help deliver will shape the infrastructure of tomorrow.If you're looking for mission, momentum, and the chance to make an outsized impact jump on the rocket ship. We’re just getting started.**Role Overview**Senior hands-on engineer who leads device and PIC characterization and test execution at the bench, builds and scales lab and measurement infrastructure, and sets test methodology while mentoring engineers.**Roles & Responsibilities*** Define and own the characterization strategy for devices and PICs (EO, OE, OO) at chip and wafer level.* Architect and lead high-speed measurements (bandwidth, BER, eye diagrams, etc.).* Establish and drive best practices for test automation frameworks and measurement routines using LabVIEW and/or Python.* 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 actionable feedback to design and process teams to influence next-generation designs.* 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 across the team.* Collaborate cross-functionally with design, process, and product teams to define test requirements and roadmaps.Requirements* Education* Bachelor’s degree or higher in EE, Physics, or related field.* Experience* Typically 8+ years of relevant experience* Technical Skills* 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.* Programming & Tools* Advanced proficiency in LabVIEW (preferred) and/or Python, including architecting test automation frameworks. Proficiency with instrument control (VISA/SCPI).* Practical Skills* Extensive experience with optical alignment, fiber handling, and wafer probing. Ability to design, build, and scale lab test infrastructure.* Soft Skills* Detail-oriented, hands-on leader able to mentor others and drive execution in a fast-paced environment.