Staff Silicon Photonics Test Engineer (Lead 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

Technical owner for test strategy, infrastructure, and production readiness across product generations at Rain Tree Photonics.

Roles & Responsibilities

• Test Architecture & Strategy

• Define end-to-end test architecture from wafer-level to module/system-level validation.

  Own design verification strategy, coverage, and correlation across simulation → wafer → system.

• Technical Leadership

• Lead and mentor test engineers; establish best practices for measurement accuracy, repeatability, and throughput.

  Drive alignment across design, packaging, and manufacturing teams.

• Advanced Characterization

• Own complex high-speed electro-optic characterization (112G/224G PAM4 and beyond).

  Debug cross-domain issues spanning RF, photonics, packaging, and signal integrity.

• Production & Yield Ownership

• Define die sort strategies, test limits, and guard-bands.

  Lead yield analysis, excursion handling, and root-cause investigations.

• Test Platform & Automation

• Architect scalable automated test platforms for wafer and module test using LabVIEW, Python, and industry-standard instrument interfaces (e.g., GPIB, VISA).

  Establish data pipelines for high-volume analytics and yield learning.

• R&D & Roadmap Influence

• Influence product architecture with testability and manufacturability considerations.

  Evaluate and introduce new test methodologies and equipment.

Requirements

• Education

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

• Experience

• Typically 8–12+ years in silicon photonics, optical transceivers, or high-speed test.

• Core Strengths

• Deep expertise in high-speed EO/OE testing and RF measurement techniques.

  Strong experience with wafer-level test, yield analysis, and production ramp.

  Proven ability to lead projects and mentor engineers.

• Programming & Tools

• Strong proficiency in LabVIEW for instrument control and test system development.

  Proficiency in Python for automation, data processing, and analytics.

  Experience integrating test equipment via VISA/GPIB/SCPI interfaces.

• Systems Knowledge

• Strong understanding across photonics + electronics + packaging.

Why Join Us

- Competitive salary commensurate with experience

- Comprehensive benefits package including health insurance

- Opportunity to work on cutting-edge photonics and AIinfrastructure technology

- High-impact role in scaling manufacturing fornext-generation systems

- Collaborative environment with world-class engineeringteams