Test Engineer - ATE & SLT at Celestial AI

Santa Clara, California, United States

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Not SpecifiedCompensation

Senior (5 to 8 years)Experience Level

Full TimeJob Type

UnknownVisa

Semiconductors, PhotonicsIndustries

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

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

Skills

ATE

SLT

Automated Test Equipment

System-Level Testing

Optical Testing

Semiconductor Testing

Test Strategy Development

Test Optimization

Celestial AI

Optical interconnects for high-performance computing

About Celestial AI

Celestial AI focuses on high-performance computing for hyperscale data centers with its technology called Photonic Fabric™, an optical compute interconnect. This technology reduces DRAM requirements by up to 35% and lowers power consumption while increasing bandwidth capacity, which is essential for multi-tenant cloud environments. Additionally, it allows for the disaggregation of High Bandwidth Memory (HBM) using optics instead of traditional connections. The goal is to provide optical connectivity that supports advancements in Generative AI and complex workloads.

Sunnyvale, CaliforniaHeadquarters

2020Year Founded

$329.6MTotal Funding

SERIES_CCompany Stage

Data & Analytics, Hardware, AI & Machine LearningIndustries

51-200Employees

Benefits

Health Insurance

Vision Insurance

Dental Insurance

Life Insurance

Company Equity

Risks

Emerging competition from companies like Lightmatter and Ayar Labs.

Potential integration challenges with existing data center infrastructure.

Dependency on limited suppliers for photonic components poses supply chain risks.

Differentiation

Celestial AI's Photonic Fabric™ offers unique optical compute interconnect technology.

The company reduces DRAM requirements by up to 35%, saving billions annually.

Celestial AI enables disaggregation of HBM over optics, enhancing bandwidth capacity.

Upsides

Acquisition of Rockley Photonics' IP strengthens Celestial AI's competitive position.

$175 million Series C funding supports further innovation and market expansion.

Growing demand for energy-efficient solutions aligns with Celestial AI's sustainable focus.

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