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Lightmatter

Photonic computing hardware for AI acceleration

Photonics Hardware Validation Engineer

Hardware Validation & TestingConfirmed live in the last 24 hours
Full-timeMountain View, CA, USA

About the Job

Requirements

  • A bachelor's degree in Electrical Engineering, Physics, or a related field.
  • Hands-on experience with standard bench test equipment for data communications, including electro-optic link testing and characterization.
  • Experience in data communications, specifically electro-optic link-level testing and characterization in a lab environment.
  • Familiarity with printed circuit board design, including hardware testing and debugging of electro-optic circuits.
  • Ability to work closely with Design Engineers, Software Engineers, and broader cross-functional teams to quickly gain knowledge of company products and drive execution of chip bring-up and validation in the lab.
  • Basic scripting skills for automation of lab tests, including analysis of results and report generation.
  • Solid understanding of electrical and optical blocks in transmitters and receivers to enable efficient chip bring-up and link testing.
  • Ability to troubleshoot and debug the electrical and optical building blocks in a transceiver to triage bugs and root-cause performance gaps.
  • Capacity to comply with federally mandated U.S. export control requirements.

Responsibilities

  • Design, develop, and build photonic test systems for characterization and validation of products.
  • Take responsibility for chip bring-up, testing, and validation of next-generation optical interconnect products.
  • Support development of chip validation plans aligned to product specifications, xDVT, and interoperability testing.
  • Contribute to test plan development, test bench configuration planning, setup of lab test equipment, and troubleshooting of validation setups.
  • Perform electro-optic, link-level testing in the lab using industry-standard practices and equipment.

Desired Qualifications

  • Experience with high-speed data communication systems, including NRZ and PAM4 signaling.
  • Familiarity with industry standards such as IEEE, OIF-CEI, or similar for data communication systems.
  • Proficiency in Python, MATLAB, or similar tools for scripting and automation.
  • Strong documentation skills to develop clear test plans, reports, and technical presentations.
  • Prior experience leading or mentoring junior engineers in lab validation and testing workflows.
  • A PhD.

About the Company

Lightmatter

Photonic computing hardware for AI acceleration

Lightmatter develops photonic computing hardware that accelerates AI workloads using light-based processors. Its photonic supercomputers run AI tasks faster and use far less energy (about 10x faster and 90% less energy) than traditional electronic systems. The company differentiates itself by focusing on electro-photonic systems and practical AI acceleration for AI and autonomous vehicle workloads, working with universities and selling hardware, software licenses, and partnerships. Its goal is to bring scalable photonic computing to market so AI and self-driving applications can run faster, more efficiently, and at larger scale.

Company size
201-500
Company stage
Series D
Total funding
$822M
Headquarters
Mountain View, CA
Founded
2017

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