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Added 5 mins ago
I
QA Automation Engineer - ETL/Database
Infoya
Toronto, ON
- $100,000 to $115,000 CAD / year
- Full-time
About the Job: Infoya is looking for an experienced Senior Automation Engineer with strong expertise in test automation , database testing, ETL validation, and data pipeline testing. The…
Added 5 mins ago
I
QA Automation Engineer - Database & ETL Testing
Infoya
Toronto, ON
- $100,000 to $115,000 CAD / year
- Full-time
About the Job: Infoya is looking for an experienced Senior Automation Engineer with strong expertise in test automation , database testing, ETL validation, and data pipeline testing. The…
Added 33 mins ago
HS
Senior Software Engineer, Dentrix Ascend
Henry Schein One UK
Surrey, BC
- Full-time
…performance, and strengthen the reliability of a modern, cloud-native…
Added 34 mins ago
Field Application Engineer (Integrated Photonics)
Axiomatic_AI
Toronto, ON
We are seeking an experienced Field Application Engineer with expertise across the PIC development lifecycle - from device and circuit design through simulations, tapeout, characterization,…
Added 34 mins ago
I
QA Automation Engineer - ETL/Database
INFOYA
Toronto, ON
- $100,000 to $115,000 CAD / year
- Full-time
experienced Senior Automation Engineer with strong expertise
Added 3 hours ago
A
Principal Engineer - Open Source Data Platform (ODP)
Acceldata
Kitchener, ON
- Full-time
We are seeking a Principal Engineer with at least 14 years of experience to serve as a technical visionary and thought leader for Acceldata's Open Data Platform (ODP). In this role, you…
Added 5 hours ago
MA
Senior AI Engineer
Meeru AI Inc
Remote, Canada
- Other
- Remote
Meeru AI is building an AI-native platform that transforms how finance and accounting teams operate. We connect to enterprise financial systems - ERPs, CRMs, billing platforms, HRIS - and…
Added 10 hours ago
C
Principal Machine Learning Engineer, AISWP (Hybrid)
Cisco
Vancouver, BC
- Full-time
AI Platform Group Office of the CTO: We are the Forward Deployed Engineering team for Cisco’s AI-native portfolio. Our mission is to accelerate the adoption of Cloud Control, AI Canvas, AI…
Added 12 hours ago
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Senior Software Engineer, NeMo Helix Core Platform
NVIDIA
Toronto, ON
- Full-time
We are looking for a Senior Software Engineer to help build NeMo Helix, NVIDIA’s product for developing, evaluating, deploying, and operating AI systems at scale. This role is for a senior…
Added 13 hours ago
AH
AI/ML Engineer
Axon Health
Ottawa, ON
- Full-time
…safely on their most sensitive data. We're hiring an AI/ML Engineer to build the permission-aware knowledge graph and safety layer behind Axon Health's AI…
Added 14 hours ago
SO
Senior Software Engineer, Dentrix Ascend
Software of Excellence
Surrey, BC
- Full-time
…performance, and strengthen the reliability of a modern, cloud-native…
Added 14 hours ago
WH
Digital Transformation Intern
WELL Health Technologies Corp
Toronto, ON
- Full-time
We are looking for students who are genuinely AI-native - people who already reach for these tools by instinct - and who pair that with real functional grounding in an area such as finance,…
Added 14 hours ago
WH
Digital Transformation Intern
WELL Health Technologies Corp
Vancouver, BC
- Full-time
We are looking for students who are genuinely AI-native - people who already reach for these tools by instinct - and who pair that with real functional grounding in an area such as finance,…
Added 14 hours ago
HS
Senior Software Engineer
Henry Schein One Canada
Surrey, BC
- Full-time
…performance, and strengthen the reliability of a modern, cloud-native…
Added 14 hours ago
X
Lead Engineer - Payments Platform
Xero
Remote, Canada
- Full-time
- Remote
Your background includes proficiency in modern backend stacks such as C#, Java, Golang, or C++, alongside cloud-native platforms like AWS
Added 15 hours ago
HS
Senior Java Software Engineer
Henry Schein One Canada
Surrey, BC
- $130,000 to $142,000 CAD / year
- Full-time
…performance, and strengthen the reliability of a modern, cloud-native…
Added 15 hours ago
P
Senior Product Manager, Digital Assets Squad
Purpose
Toronto, ON
- Full-time
Own the squad's roadmap end-to-end, from digital asset funds through crypto native products
Added 15 hours ago
S
Principal Research Scientist
ServiceNow
Montreal, QC
- Full-time
It all started when engineer Fred Luddy wrote code that automated a tedious task for his coworker, Phyllis. She cried tears of joy. That moment inspired Fred to build a company that could…
Added 16 hours ago
CG
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 16 hours ago
JW
Senior Software Engineer, Tokenization
Jobs Web3
Toronto, ON
- Full-time
As a Senior Software Engineer, you will design and build the core systems that issue, custody, and settle tokenized equities on-chain and keep them in sync with traditional brokerage and…
Added 17 hours ago
SF
Application Security Engineer II
Spring Financial Inc.
Vancouver, BC
- Full-time
As an Application Security Engineer II, you are an experienced practitioner who works independently to secure Spring’s applications, services, and APIs. You take ownership of application…
Added 17 hours ago
SF
Application Security Engineer II
Spring Financial
Vancouver, BC
- Full-time
As an Application Security Engineer II, you are an experienced practitioner who works independently to secure Spring’s applications, services, and APIs. You take ownership of application…
Added 17 hours ago
N
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 17 hours 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 17 hours 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.…

Lightmatter

Staff Photonics Design & PDK Modeling Engineer

Toronto, ON, Canada

Full-time

Apply About employer

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Job details

Job type: Full-time
Apply by: Nov 7, 2026
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.

Apply About employer

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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