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Added 1 month ago
Staff Engineer – Software Development, Architecture, Security & Governance
RBC
Toronto, ON
Full-time
We are seeking a highly skilled and experienced Staff Engineer to join our Enterprise Architecture team, leveraging their expertise in full-stack development, backend engineering, API…
Added 21 days ago
Senior Machine Learning Engineer
Remitly
Burnaby, BC
Full-time
As a Senior Machine Learning Engineer in Remitly's Core AI/ML team, you'll work at the heart of our AI strategy. The Core AI/ML team is responsible for building the foundational machine…
Added 1 month ago
Senior Staff Engineer
Royal Bank of Canada
Vancouver, BC
Full-time
In-depth experience with Python, Scala, Java/Spring or similar technologies.
Added 24 days ago
Senior Application Security Engineer
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Toronto, ON
The Senior Application Security Engineer plays a critical role in driving secure software development and application security maturity within TripleLift's Engineering and Security…
Added 1 month ago
Senior Data Engineer
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London, ON · Waterloo, ON
Full-time
The Senior Data Engineer is responsible for the design, governance, and ongoing evolution of the organization's enterprise data environment. This role provides leadership in data…
Added 1 month ago
Principal AI/ML Engineer
Tilt (f.k.a. Delphia)
Remote, Canada
$240,000 to $320,000 USD / year
Full-time · Remote
…creators can author, remix, and publish strategies. We're a small, senior team (from BlackRock, Bloomberg, BGI, and Quant Funds) backed by Portage Ventures, Lerer Hippeau, Cumberland…
Added 1 month ago
Principal AI/ML Engineer
lululemon
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…platforms and services that enable the enterprise to operate with intelligence at scale. The team leads the design and delivery of a trusted unified data foundation, AI-driven data…
Added 1 month ago
Senior AI Engineer - Growth
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Staff Software Engineer
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Our Tech Stack: Python backend on Google Cloud Platform (AppEngine, Datastore, BigQuery, Dataflow, Memcache, Cloud Tasks, Pub/Sub), Redis, Elastic Search, Monitoring (Datadog, Grafana),…
Added 2 months ago
Intermediate Full Stack Software Engineer
AltaML
Edmonton, AB
$90,000 to $110,000 CAD / year
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We are looking for a Full Stack Software Engineer who builds software in an AI-native way - someone who treats Claude and the latest agentic coding tools as a core part of their craft, not…
Added 1 month ago
Staff API Engineer
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Added 1 month ago
Senior Platform Engineer
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Added 19 days ago
Senior GenAI Engineer/Lead
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Montreal, QC
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Added 1 month ago
Senior Principal Software Engineer
Questrade Financial Group
Toronto, ON
We’re looking for our next Senior Principal Software Engineer. Could It Be You?
Added 1 month ago
Senior Full Stack API Engineer
Questrade Financial Group
Toronto, ON
We’re looking for our next Senior Fullstack API Engineer. Could It Be You?
Added 2 months ago
Senior Generative AI Software Engineer
Apertera (formerly Alexa Translations)
Toronto, ON
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We are looking for a Senior Generative AI Engineer to develop our next-generation intelligent translation and translation-related service engine, using Generative AI (GenAI) and Large…
Added 1 month ago
Sr. Staff Physical Design Engineer
Lightmatter
Toronto, ON
Full-time
We are seeking a highly skilled Senior Physical Design Engineer to work on the implementation of complex digital blocks. In this role, you will leverage your expertise in advanced process…
Added 1 month ago
Senior Software Engineer, Data Systems
hive.co
Remote, Canada
Full-time · Remote
As a Senior Data Engineer, you’ll play a vital role in evolving our data platform, which directly determines what our customers can do, how fast our product moves, and how confidently…
Added 21 days ago
Senior AI Engineer - Evisort AI
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Vancouver, BC · Toronto, ON · Canada, BC, Vancouver
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Added 1 month ago
Senior AI Engineer, Full-Stack - Agent Factory
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Added 19 days ago
Senior Manager, Data Engineer, Applied AI Data Ingestion & Integration
BMO
Toronto, ON · FCP
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…and AI solutions. Our team combines engineering excellence with cutting-edge AI to deliver scalable, secure, and responsible solutions that power business innovation across the bank. We are…
Added 1 month ago
Customer Experience Engineer
Elation Health
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Full-time
…that resolves the customer's problem immediately, and partner with senior engineers on the cases complex enough to need…
Added 1 month ago
Senior DevOps Engineer
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Kitchener, ON
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We are seeking a talented Sr DevOps Engineer to join our dynamic team and contribute to the delivery of on-site and cloud-based Energy Management System (EMS) for utility grade systems. The…
Added 1 month ago
Senior Machine Learning Engineer
TD
Toronto, ON
Full-time
As a candidate, you are encouraged to ask compensation related questions and have an open dialogue with your recruiter who can provide you more specific details for this role.
Added 1 month ago
Senior MLOps Engineer | Ingénieur·e MLOps senior
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Full-time
We are looking for a Senior MLOps Engineer to design, build, and maintain the data and machine learning pipelines that power our AI and analytics platforms.

Lightmatter

Sr. Staff Physical Design Engineer

Toronto, ON, Canada

Job type: Full-time
Experience: 12+ years of industry experience working as a Physical Design Engineer
Posting language: English
Posted: Jul 24, 2026

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Original job description

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. We will continue to accelerate the development of data center photonics and grow every department at Lightmatter!

If you're passionate about tackling complex challenges, making an impact, and being an expert in your craft, join our team of brilliant scientists, engineers, and accomplished industry leaders.

Lightmatter is (re)inventing the future of computing with light!

We are seeking a highly skilled Senior Physical Design Engineer to work on the implementation of complex digital blocks. In this role, you will leverage your expertise in advanced process nodes (3nm) to drive timing closure, power integrity, and physical verification for high-performance ASICs. Beyond standard digital flows, you will have the unique opportunity. To work alongside a team of world-class scientists and engineers in defining how the system will be optimized and trailblaze problems that are new to the photonics industry! If your passion is innovation, solving challenging technical problems and doing impactful work you should join our team!

Responsibilities

Implement digital blocks in advanced tech nodes from synthesis through physical verification, using industry standard tools and flows
Drive fullchip STA signoff, review constraints, debug timing reports and implement ecos
Drive power analysis and optimization while balancing area and performance trade-offs
Drive full chip floor planning, IO placement and clock distribution
Understand clock details and be able to customize clock implementation for functional and test clocks
Debug and clean up DRC/LVS
Functional and timing ECO implementation
Work with EDA companies to resolve any tool issues
Write TCL, Python, or Shell scripts to automate flow or customize existing flows

Qualifications

Bachelor’s in Electrical Engineering or Computer Engineering
12+ years of industry experience working as a Physical Design Engineer
Must have completed blocks or top level physical design for large ASICs or mixed signal chips that taped out
Thorough knowledge of timing closure, LVS/DRC closure
Experience in TCL and Python (or other scripting languages)
Strong teamwork skills with the ability to collaborate with multiple functional teams across a variety of fields
Ability to react to change and thrive in a fast paced environment

Preferred Qualifications

Masters Electrical Engineering or Computer Engineering with 8 years of industry experience
Hands-on experience with Cadence tools
Tape-out experience 3nm designs
Be willing to do manual layouts as well as willingness to learn and do silicon photonics layout
EM/IR analysis using standard industry signoff tools

We offer competitive compensation. The base salary range for this role determined based on location, experience, educational background, and market data.

Salary Range: total compensation goes beyond base salary, it also includes a new hire equity grant, annual performance-based equity, and other rewards that recognize your impact and contribution.: $191,000 CAD - $219,000 CAD

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 Benefits
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.

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More about this job

Responsibilities

Implement complex digital blocks in advanced 3nm process nodes from synthesis through physical verification. Drive full-chip STA signoff, power analysis, floor planning, and clock distribution for high-performance ASICs.

Requirements

Requires a Bachelor's degree in Electrical or Computer Engineering with over 12 years of industry experience in physical design for large ASICs. Must possess thorough knowledge of timing closure, LVS/DRC closure, and scripting in TCL and Python.

Skills

Physical Design
Timing Closure
Power Integrity
Physical Verification
STA Signoff
Floor Planning
Clock Distribution
DRC/LVS Debugging
TCL
Python
Shell Scripting
Cadence Tools
EM/IR Analysis
Silicon Photonics Layout
ASIC Design
3nm Process Nodes

Benefits

Comprehensive Health Care Plan (Medical, Dental & Vision)
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
Equity grants

Visa sponsorship

Not detected in the job text

Keywords

Physical Design
ASIC
3nm
Photonics
STA
LVS
DRC
TCL
Python
Cadence
EM/IR Analysis
Floor Planning
Clock Distribution
Mixed Signal Chips
Synthesis
ECO
HPC
AI Infrastructure
Digital Blocks
Silicon Photonics

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