Staff Physical Design Engineer (Toronto) (Winnipeg)

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 industry‑standard tools and flows. Understand and debug timing constraints, derates, and margins; review sign‑off STA reports and fix timing violations for all scenarios. Build and customize power grid to meet power integrity goals. Understand clock details and customize clock implementation for functional and test clocks. Debug and clean up DRC/LVS, functional, and timing ECO implementation; produce manual layouts when required and learn silicon photonics layout. Work with EDA vendors to resolve tool issues. Write TCL, Python, or Shell scripts to automate or customize existing flows. Qualifications Bachelor’s degree in Electrical Engineering or Computer Engineering. At least 8+ years of industry experience as a Physical Design Engineer. Completed blocks or top‑level physical design for large ASICs or mixed‑signal chips that have taped out. Thorough knowledge of timing closure, LVS/DRC closure. Experience with TCL and Python (or other scripting languages). Robust teamwork skills and ability to collaborate with multiple functional teams. Ability to react to change and thrive in a fast‑paced environment. Preferred Qualifications Master’s degree in Electrical Engineering or Computer Engineering. Hands‑on experience with Cadence tools. Tape‑out experience on 3nm designs. Benefits 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 Advantages Flexible, hybrid workplace model Equity grants (applicable to full‑time employees) Benefits eligibility may vary depending on your employment status and location. Lightmatter recruits, employs, trains, compensates, and promotes regardless of race, religion, color, national origin, sex, disability, age, veteran status, and other protected status as required by applicable law. Export Control: Candidates should have capacity to comply with the federally mandated requirements of U.S. export control laws. Salary Range: $163,000—$182,000 CAD (total compensation includes base salary, current hire equity grant, annual performance‑based equity, and other rewards that recognize impact and contribution). #J-18808-Ljbffr Apply on Kit Job: kitjob.ca/job/2ptpa8