Staff Physical Design Engineer (Toronto)

About Lightmatter

Lightmatter is leading the revolution in AI data center infrastructure, enabling the next giant leaps in human progress. The company invented the world’s first 3D‑stacked photonics engine, Passage™, capable of connecting thousands to millions of processors at the speed of light in extreme‑scale data centers for the most advanced AI and HPC workloads. Lightmatter raised $400 million in its Series D round, reaching a valuation of $4.4 billion.

Position Summary

Senior Physical Design Engineer – implementation of complex digital blocks in advanced process nodes (3nm) to drive timing closure, power integrity, and physical verification for high‑performance ASICs. This role offers a unique opportunity to work alongside world‑class scientists and engineers in defining system optimization and tackling novel photonics challenges.

Responsibilities

• Implement digital blocks from synthesis through physical verification, using indu...