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Added 1 month ago
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Senior AI Engineer (GCP/Vertex AI) Contract
TekRek
Canada
- Contract
Hands-on experience with GCP Vertex AI and strong Python. Production work on Azure AI Foundry or AWS Bedrock will also be considered
Added 1 month ago
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Martech/ Growth Engineer
Credit Genie
Toronto, ON
- Full-time
We’re looking for a MarTech / Growth Engineer to sit at the intersection of Marketing, Engineering, Data, Product, and Operations.
Added 1 month ago
SI
Senior Cryptographic Protocol Engineer
SuperQubit Inc.
Markham, ON
- Full-time
Job Title: Senior Cryptographic Protocol Engineer
Added 1 month ago
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Salesforce AI & Data Cloud Solutions Engineer
AGF Investments
Toronto, ON
- Full-time
We are seeking a hands-on Data Engineer to own both the underlying CRM data foundation and the Data360 platform. The role will design, build, govern, and support scalable data models,…
Added 1 month ago
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Stage - Hiver 2027 - Développement Logiciel Avancé, Méthodes Numériques / Internship - Winter 2027 - Advanced Software Development, Numerical Methods
Pratt & Whitney
Longueuil, QC
- Full-time
Maîtrise de Python et, idéalement, d'un langage compilé tel que C ou Fortran
Added 1 month ago
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CyberSecurity Specialist- Agentic AI
Galent
Toronto, ON · North York, ON
- Contract
Strong Python development skills; Java, Node.js, Go, or C/C++ is a plus.
Added 1 month ago
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Senior Full Stack Engineer - Java /
Rose International
Mississauga, ON
- Full-time
Job Title: Senior Full Stack Engineer - Java / AI
Added 1 month ago
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Senior Machine Learning Engineer (Consulting)
Yeji Data Lab
Montreal, QC · Greater Montreal Metropolitan Area
- Full-time
We are looking for a Senior Machine Learning Engineer to design, build, and deploy scalable ML solutions for our clients. You will work across diverse projects, collaborating with…
Added 1 month ago
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Software Engineer - Platform Services
Nokia
Ottawa, ON · Kanata, ON
- Full-time
…drive the development of cutting-edge platforms. As a Software Engineer in Platform Services, you will be part of a dynamic team responsible for designing and developing scalable and robust…
Added 1 month ago
Platform Engineer
Scotiabank
Toronto, ON
The Platform Engineer will play a critical role within the Enterprise Data & AI Technology organization - one of Scotiabank’s most significant enterprise-wide strategic initiatives. This…
Added 1 month ago
Senior Platform Engineer
Scotiabank
Toronto, ON
The Senior Platform Engineer will play a critical role within the Enterprise Data & AI Technology organization - one of Scotiabank’s most significant enterprise wide strategic initiatives.…
Added 1 month ago
GM
Senior Software Developer
General Motors
Markham, ON · Oshawa, ON
- Full-time
This role is for a hands-on senior engineer who can design, implement, test, deploy, and operate reliable backend systems at production scale. The developer will contribute across REST…
Added 1 month ago
Staff Photonics Design & PDK Modeling Engineer
Lightmatter
Toronto, ON
We are hiring a Photonics PDK Modeling Engineer to join our team. In this role, you will develop our internal Process Design Kit (PDK). You will act as the architect of our component…
Added 1 month ago
RB
Staff Cloud Security Engineer (Global Security)
Royal Bank of Canada
Vancouver, BC · Toronto, ON
- Full-time
…across all tenants. In this role as a Staff Cloud Security Engineer, you will play a crucial role in developing innovative solutions to enhance RBC's Cloud Security posture. You will also…
Added 1 month ago
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Principal Engineer, Digital Manufacturing
''
Toronto, ON
- Full-time
Position Title: Principal Engineer, Digital Manufacturing
Added 1 month ago
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AI Engineer | Full time | AI Innovations
Trillium Health Partners
ON · ON, Canada
- Full-time
Reporting to the Director, AI & Digital Planning, the AI Engineer will be responsible for using the latest AI tools to design, prototype, build, evaluate, and scale AI solutions including…
Added 1 month ago
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Data Architect
Rodan Energy Solutions Inc.
Mississauga, ON
- Full-time
Modern Data Stack: Work in Databricks (Unity Catalog, Delta Lake, serverless compute, Lakeflow Connect/Auto Loader, MLflow, Genie) with Python/PySpark and SQL, deployed via Asset Bundles.
Added 1 month ago
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Embedded Software Engineer
Actalent
Mississauga, ON
- $70,000 to $85,000 CAD / year
- Full-time
The Embedded Software Engineer designs, develops, and maintains embedded computer system software for advanced military and naval applications, including control software for helicopter…
Added 1 month ago
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Test/Lab Engineer
Actalent
Waterloo, ON
- $33 to $38 CAD / hour
- Contract
Our client in the automotive industry, is looking to hire a Test/Lab Engineer.
Added 1 month ago
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SDET (Intermediate)
Actalent
Waterloo, ON
- $40 to $50 CAD / hour
- Contract
This Software Development Engineer in Test (SDET) role focuses on designing, developing, and maintaining automated test scripts and tools in Python to validate new features for advanced…
Added 1 month ago
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Staff Photonics Design & PDK Modeling Engineer
Lightmatter
Toronto, ON
- Full-time
We are hiring a Photonics PDK Modeling Engineer to join our team. In this role, you will develop our internal Process Design Kit (PDK). You will act as the architect of our component…
Added 1 month ago
RE
Data Architect
Rodan Energy Solutions Inc.
Mississauga, ON
- Full-time
Modern Data Stack: Work in Databricks (Unity Catalog, Delta Lake, serverless compute, Lakeflow Connect/Auto Loader, MLflow, Genie) with Python/PySpark and SQL, deployed via Asset Bundles.
Added 1 month ago
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DevOps- AI Platform Engineer
Galent
Halifax, NS
- Contract
Develop CICD pipelines using GitHub Actions, TypeScript, Python, Groovy and Jenkins
Added 1 month ago
EN
Senior Forward Deployed Engineer (10570) Toronto, Canada
Extreme Networks
Toronto, ON
- Full-time
Title of position: Senior Forward Deployed Engineer
Added 1 month ago
AM
Salesforce AI & Data Cloud Solutions Engineer
AGF Management
Toronto, ON
- Full-time
We are seeking a hands-on Data Engineer to own both the underlying CRM data foundation and the Data360 platform. The role will design, build, govern, and support scalable data models,…

Lightmatter

Staff Photonics Design & PDK Modeling Engineer

Toronto, ON, Canada

Full-time

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Job details

Job type: Full-time
Experience: Master’s +5 years experience or PhD +3 years experience in Electrical Engineering, Photonics, Physics, or related field.
Posting language: English
Posted: Oct 8, 2026

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 hiring a Photonics PDK Modeling Engineer to join our team. In this role, you will develop our internal Process Design Kit (PDK). You will act as the architect of our component library, bridging the gap between photonics device design and system-level verification. You will develop robust compact models for active and passive components, ensuring that our simulation environment accurately predicts the behavior of our physical layouts. You will work heavily in Python, EDA tools, applying software engineering rigor to the challenges of photonic hardware design.

Responsibilities

Develop and maintain a library of pcells using Python-based frameworks. Ensure strict synchronization between physical layout, logical netlists, and behavioral models.
Create and verify physics based behavior models for passive and active devices.
Design test structure, develop test plans for device FOMs extraction. Work with test engineers to get silicon data.
Validate models against lab measurements. Perform data fitting and statistical analysis to align model parameters with real-world silicon performance.
Automated Verification: Implement regression testing and Continuous Integration (CI) pipelines to ensure PDK updates do not break legacy designs or connectivity logic.
Actively collaborate with design, analog, digital and architecture engineers to deliver high impact tape-outs

Qualifications

Master’s +5 years experience or PhD +3 years experience in Electrical Engineering, Photonics, Physics, or related field.
Deep understanding of photonic device physics and experience in device simulation.
Experience building behavioral models for circuit simulators (e.g., Lumerical INTERCONNECT, Cadence, Synopsys OptSim, or custom Python solvers).
Experienced in Python for modeling, automation, and data analysis. Comfortable with object-oriented programming and scientific libraries (NumPy, SciPy).
Python based layout experience.
Demonstrated strong problem solving skills for problems without obvious solutions

Preferred Qualifications

Proficiency with python-based layout tools such as gdstk, GDSFactory, and KLayout
Experience with Python-native circuit simulation ecosystems (e.g., SAX, Photontorch, Simphony).
Experience with verilogA/spectre equivalent circuit modeling for photonics device
Prior experience in using foundry-provided process design kits (PDKs), adhering to specific design rules and constraints, well understanding of DRC, LVS, etc.
Experience working on large-scale designs using industry standard environments such as Cadence Virtuoso
Experience in taping out and testing large-scale photonic integrated circuits, including familiarity with relevant testing equipment and methodologies.
Possess strong project execution skills, demonstrating the ability to effectively manage multiple design priorities, adhere to project timelines, and meet critical milestones.

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.: $185,000 USD - $220,000 USD

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

Develop and maintain the photonics Process Design Kit, including Python-based component libraries and physics-based behavioral models, while keeping layouts, netlists, and models synchronized. Design and validate test structures and models against silicon measurements, automate regression and CI checks, and collaborate across engineering teams to support tape-outs.

Requirements

Requires a master’s degree with at least five years of experience or a PhD with at least three years in electrical engineering, photonics, physics, or a related field, along with strong photonic device physics and simulation expertise. Candidates should have Python modeling and layout experience; preferred qualifications include PDK and EDA tool experience, photonic circuit modeling, and large-scale photonic integrated circuit tape-out and testing.

Skills

Photonics Device Physics
Process Design Kits
Python
Compact Modeling
Photonic Device Simulation
Python-Based Layout
Behavioral Modeling
Circuit Simulation
Data Analysis
Statistical Analysis
Object-Oriented Programming
Regression Testing
Continuous Integration
Design Rule Checking
Layout Versus Schematic
Photonic Integrated Circuit Testing

Benefits

Medical Insurance
Dental Insurance
Vision Insurance
Retirement Savings Matching
Life Insurance
Paid Time Off
Paid Family Leave
Short-Term Disability
Long-Term Disability
Training And Development
Commuter Benefits
Flexible Hybrid Workplace
Equity Grants

Visa sponsorship

Not detected in the job text

Keywords

Photonics
Process Design Kit
PDK
Python
PCell
Compact Models
Photonic Device Physics
Device Simulation
Lumerical INTERCONNECT
Cadence
Synopsys OptSim
NumPy
SciPy
GDSFactory
gdstk
KLayout
SAX
Photontorch
Simphony
Verilog-A
Spectre
EDA Tools
Design Rule Checking
Layout Versus Schematic
Silicon Measurements
Data Fitting
Statistical Analysis
Regression Testing
Continuous Integration
Photonic Integrated Circuits

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