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← Lightmatter

Sr. Staff Physical Design Timing Engineer (STA)

Lightmatter · Boston, MA · Mountain View, CA · Toronto, ON

CHECKED 13H AGO

Infrastructureonsitestaff$217k–$267k
Apply on the lab’s site ↗

At a glance

Highlights

  • Drive STA sign-off for flagship silicon photonics chips for AI data centers.
  • Close timing on leading-edge CMOS from synthesis through tapeout signoff.
  • Help scale Passage, the 3D-stacked photonics engine using light for compute.

What they offer

  • Comprehensive Health Care Plan (Medical, Dental & Vision)
  • Retirement Savings Matching Program
  • Life Insurance (Basic, Voluntary & AD&D)
  • Generous Time Off (Vacation, Sick & Public Holidays)
  • Paid Family Leave
  • Short Term & Long Term Disability
  • Training & Development
  • Commuter Benefits
  • Flexible, hybrid workplace model
  • New hire equity grant and annual performance-based equity

Ideal candidate

A seasoned physical design engineer who thrives on tough timing challenges and loves innovating at the intersection of electronics and photonics. Collaborative, detail-obsessed, and motivated by impactful work on next-gen AI infrastructure.

Requirements

  • Bachelor's degree in Electrical or Computer Engineering
  • 12 years of Physical Design experience with 5+ years in ASIC STA and timing closure
  • Experience managing on-chip variation derates and multi-mode multi-corner constraints
  • Proficient in scripting with TCL, Python, Perl, or Shell
  • Strong problem-solving skills with attention to technical detail
  • Strong team player with clear and precise communication
remote policy
Flexible, hybrid workplace model

Lab profile

About Lightmatter

Building 3D-stacked photonics engines connecting AI processors at light speed for data centers.

What they build

  • Passage™ 3D-stacked photonics engine
  • Photonic interconnects for AI / HPC data centers

Known for

  • Silicon photonics
  • 3D-stacked packaging
  • High-speed analog / mixed-signal design
  • Electro-optic systems

Key facts

  • Raised $400M Series D
  • $4.4 billion valuation
More about Lightmatter →
Apply on the lab’s site ↗