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Lightmatter

Photonic computing hardware for AI acceleration

Senior Staff Physical Design Timing Engineer - STA

Silicon & ASIC DesignConfirmed live in the last 24 hours
Full-timeMountain View, CA, USA

About the Job

Requirements

  • A bachelor's degree in Electrical Engineering or Computer Engineering is required.
  • 12 years of Physical Design experience, including at least 5 years of hands-on experience in ASIC static timing analysis (STA), timing constraints development, and timing closure using Cadence or Synopsys tools.
  • Experience driving timing closure by managing on-chip variation derates, optimizing multi-mode multi-corner constraints, and implementing robust clock tree building strategies.
  • Experience with scripting languages such as Tcl and Python, Perl, or Shell.
  • Strong problem-solving skills and attention to technical detail.
  • Clear and precise communication skills.

Responsibilities

  • Drive static timing analysis sign-off for flagship silicon photonics chips across various technology nodes.
  • Analyze fabrication guidelines and work with the methodology team to incorporate sign-off corners, margins, and derates into timing analysis flows and methodologies.
  • Collaborate with architecture, RTL, and design-for-test teams to analyze timing complexities and develop consolidated timing modes and constraints for synthesis, place-and-route, and chip timing sign-off flows.
  • Analyze tradeoffs between power, performance, and area goals and incorporate them into overall chip implementation flows.
  • Run full-chip static timing analysis and accurately project timing summaries across scenarios.
  • Use Tempus or PrimeTime to automate timing engineering change order generation for effective closure and support physical design implementation.
  • Document best practices and lessons learned to drive continuous improvements in future projects.

Desired Qualifications

  • A master's degree in Electrical Engineering or Computer Engineering is preferred.
  • At least 8 years of hands-on experience in ASIC static timing analysis, timing constraints development, and timing closure using Cadence or Synopsys tools.

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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