Product Engineer – ATE, SLT & Optics 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, Photonics, AI HardwareIndustries

Requirements

Bachelor's or Master's degree in Electrical Engineering with 7+ years of industry experience in product engineering, test engineering, or related fields
Experience in optics/photonics testing (lasers, modulators, optical transceivers, etc.)
Familiarity with optical measurement tools (power meters, spectrum analyzers, interferometers, etc.)
Strong understanding of semiconductor manufacturing processes and DFT concepts
Excellent problem-solving skills and the ability to work collaboratively across teams including design, test, and operations
Experience with yield analysis, failure analysis, and test optimization
Proficiency in data analytics tools (Python, JMP, Excel, SQL, etc.)
Strong problem-solving and debugging skills in high-volume manufacturing environments
Preferred Qualifications
Knowledge of RF and high-speed signal integrity testing
Working knowledge of Confluence and JIRA

Responsibilities

Developing silicon photonic device for mass production, ensuring high quality and reliability
Developing HVM test methodology for electro-optical test of Si-Photonic device
Enabling ATE and prober solutions for high-volume electro-optical test
Develop characterization plans, execute DOE (Design of Experiments), and optimize test coverage
Manage SW and HW board readiness for characterization and demo systems
Support the test engineering and design teams in defining proper test concepts and features
Support customer qualifications, reliability testing, and failure analysis
Support optics/photonics-based testing for optical components and high-speed transceivers

Skills

Key technologies and capabilities for this role

Silicon PhotonicsATESLTOpticsPhotonic DevicesProduct EngineeringTest EngineeringCharacterizationHigh-Volume ManufacturingChipletsOptical InterposersOMIB

Questions & Answers

Common questions about this position

What qualifications are required for the Product Engineer role?

A Bachelor's or Master's degree in Electrical Engineering with 7+ years of industry experience in product engineering, test engineering, or related fields is required, along with experience in optics/photonics testing such as lasers, modulators, and optical transceivers.

What are the main responsibilities of this Product Engineer position?

Responsibilities include developing silicon photonic devices for mass production, creating HVM test methodologies for electro-optical tests, enabling ATE and prober solutions, executing DOE, managing SW/HW for characterization, and supporting customer qualifications and failure analysis.

What is the salary range for this position?

This information is not specified in the job description.

Is this role remote or does it require working in an office?

This information is not specified in the job description.

What experience makes a candidate stand out for this Product Engineer role?

Candidates with 7+ years in product or test engineering, hands-on experience in optics/photonics testing (lasers, modulators, optical transceivers), and familiarity with optical measurement tools will be strongest, as they align directly with the essential duties like ATE/SLT development and DOE execution.

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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