Staff High Speed I O Test Engineer

Lightmatter is a photonic-computing company developing optical interconnects and light engines for AI-scale data centers.

Mountain View, United States
About Lightmatter

Founded in 2017 by MIT researchers, Lightmatter develops photonic infrastructure for AI, including its Passage interconnect platform and Guide light engine.

View jobs by Lightmatter

Skills

Candidate Availability

Required and preferred rules are kept separate and reflect the wording in the original posting.

About the Role

You will validate and architect package- and system-level test strategies for high-speed I/O interfaces. You will execute electrical characterization, develop test platforms and automation, perform stress testing, troubleshoot complex test issues, and work with vendors to procure test equipment.

Requirements

  • Master’s degree in Electrical Engineering, Computer Engineering, or a related field
  • 6+ years of industry experience in transceiver, SerDes, or high-speed link test development
  • Hands-on high-speed lab experience with oscilloscopes, BERTs, PPGs, VNAs, and spectrum analyzers
  • Knowledge of high-speed interfaces and analog building blocks, including PLL, CDR, CTLE, DFE, FFE, and FEC
  • Python experience for test automation and data processing
  • Hardware and signal-integrity analysis and debugging skills
  • Ability to communicate technical concepts to technical and non-technical stakeholders
  • Ability to comply with U.S. export control requirements

Responsibilities

  • Execute high-speed serial I/O characterization and validation across platforms
  • Collaborate with architecture, signal integrity, and silicon design teams on test techniques
  • Architect test concepts, platforms, and design-for-test rules
  • Set up and operate high-speed lab equipment
  • Develop Python test software for measurements, execution, analysis, and parameter extraction
  • Define stress-testing methods for serial I/O operating limits
  • Troubleshoot compliance-test hardware, fixtures, software, and devices under test
  • Work with vendors to specify and procure test equipment

Benefits

  • Medical, dental, and vision coverage
  • Retirement savings matching program
  • Basic, voluntary, and AD&D life insurance
  • Vacation, sick time, and public holidays
  • Paid family leave
  • Short-term and long-term disability coverage
  • Commuter benefits
  • Flexible hybrid workplace model
  • Equity grants for eligible full-time employees
Staff High Speed I O Test Engineer at Lightmatter | JobStash