Senior Silicon Photonics Test Engineer (Execution-Focused Role)

About Rain Tree Photonics

At Rain Tree Photonics, we are building next-generation optical engines for co-packaged optics (CPO) and near-packaged optics (NPO) to break the bandwidth and power bottlenecks in AI infrastructure.

Our silicon photonic ICs power 200G/lane and beyond interconnects, enabling scalable, energy-efficient connectivity for AI data centers.

Role Overview

Hands-on contributor focused on characterization, test execution, and lab infrastructure.

Roles & Responsibilities

• Execute device and PIC characterization (EO, OE, OO) at chip and wafer level.
• Set up and run high-speed measurements (bandwidth, BER, eye diagrams, etc.).
• Develop and maintain test automation scripts and measurement routines using LabVIEW and/or Python.
• Support wafer probing, optical alignment, and test setup bring-up.
• Troubleshoot and debug test setups and measurement issues.
• Analyze data and provide feedback to design and process teams.
• Support die sorting and yield data collection.
• Assist in transition from R&D to early production test flows.

Requirements

• Education

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

• Experience

• Typically 3–7 years of relevant experience.

• Technical Skills

• Hands-on experience in photonics device testing or optical lab work.

  Familiarity with high-speed measurement equipment (VNA, oscilloscope, BERT).

  Basic understanding of optical communication systems.

• Programming & Tools

• Working proficiency in LabVIEW (preferred) and/or Python for test automation.

  Familiarity with instrument control (VISA/SCPI).

• Practical Skills

• Experience with optical alignment, fiber handling, and/or wafer probing.

  Ability to build, maintain, and debug lab test setups.

• Soft Skills

• Detail-oriented, hands-on, and able to execute in a fast-paced environment.

Why Join Us

- Competitive salary commensurate with experience

- Comprehensive benefits package including health insurance

- Opportunity to work on cutting-edge photonics and AI infrastructure technology

- High-impact role in scaling manufacturing for next-generation systems

- Collaborative environment with world-class engineering teams