Test Engineer - ATE & SLT

Celestial AI • Santa Clara, CA

66d • $195,000 - $225,000

About The Position

We are seeking a Test Engineer with expertise in Automated Test Equipment (ATE) and System-Level Testing (SLT) to join our team. The ideal candidate will play a key role in developing and optimizing test strategies for semiconductor and optical components. Experience with optics-based testing is a strong plus.

Requirements

• Bachelor's or Master's degree in Electrical Engineering with 5+ years of Industry experience.
• Hands-on experience with ATE platforms (e.g., Advantest, Teradyne, LTX, etc.).
• Experience in SLT, functional testing, and debug at the system level.
• Proficiency in programming test scripts (Python, C/C++, or equivalent).
• Strong knowledge of semiconductor testing methodologies, test coverage, and data analysis.
• Familiarity with JTAG, boundary scan, and communication protocols (I2C, SPI, PCIe, etc.).
• Experience in failure analysis, yield improvement, and test optimization.
• Excellent debugging and problem-solving skills.

Nice To Haves

• Experience in optics/photonics testing (lasers, modulators, optical transceivers, etc.).
• Knowledge of optical instrumentation (power meters, spectrum analyzers, interferometers, etc.).
• Familiarity with high-speed signal integrity and RF testing.
• Experience in data visualization tools for test analysis.
• Working knowledge of Confluence and JIRA.

Responsibilities

• Develop, debug, and optimize ATE and SLT test programs for production and validation.
• Work closely with design, product, and validation teams to define and implement test requirements.
• Analyze test data to improve yield, performance, and reliability.
• Develop and maintain test patterns and test methodologies for different device types.
• Support JTAG, boundary scan, and other digital/analog test interfaces.
• Collaborate with hardware and firmware teams to ensure test coverage and debug failures.
• Automate data collection, analysis, and reporting to enhance efficiency.
• Provide failure analysis and debug support for both production and engineering samples.
• Support new product introduction (NPI) and drive continuous improvement in test coverage and efficiency.
• If applicable, develop and execute optics-based testing methodologies for integrated photonics or optical components.

Benefits

• Competitive base salary.
• Bonus.
• Generous grant of early-stage equity.
• Health, vision, dental, and life insurance.
• Collaborative and continuous learning work environment.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: Bachelor's degree
• Number of Employees: 101-250 employees