Staff Silicon Photonics Test Engineer

Lumilens; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Lumilens is seeking a Senior hands-on engineer to lead device and PIC characterization, build lab infrastructure, and mentor engineers. You will shape test strategies for EO, OE, OO at chip and wafer level and drive automation with LabVIEW and Python.

You will lead high-speed measurements, wafer probing, optical alignment, and root-cause analysis, collaborating with design and process teams to improve yield and transition R&D to production.

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.
• Experience with high-speed measurement equipment (VNA, oscilloscope, BERT).
• Proficiency in LabVIEW and Python; test automation experience.

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).
• Establish and drive 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 issues.
• Mentor junior test engineers across the team.
• Collaborate cross-functionally with design, process, and product teams to define test requirements and roadmaps.

Skills

Photonics device testing

Optical lab work

LabVIEW

Python

Wafer probing

Mentoring engineers

Education

Bachelor’s degree or higher in EE, Physics, or related field

Tools

VNA

Oscilloscope

BERT

LabVIEW

Python

VISA/SCPI

Job description

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.