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Added 27 mins ago
AC
Field Service Technician - Specialty Rental - Acheson, Alberta, Canada
Atlas Copco
AB · Alberta, Canada
- Full-time
Your mission as the Field Service Engineer is to provide expert repair services for our technology solutions, delivering unmatched customer satisfaction and upholding the highest standards…
Added 27 mins ago
AC
Field Service Technician - Specialty Rental - Acheson, Alberta, Canada
Atlas Copco
Acheson, AB
- Full-time
Your mission as the Field Service Engineer is to provide expert repair services for our technology solutions, delivering unmatched customer satisfaction and upholding the highest standards…
Added 1 hour ago
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Lead Software Engineer
Virtusa
Toronto, ON
- Full-time
System Integration: Integrate imaging software and hardware subsystems into target devices, enterprise platforms, or specialized applications.
Added 4 hours ago
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Senior Machine Learning Applications and Compiler Engineer, LPX
NVIDIA
Canada
- Full-time
We are now looking for a Senior Machine Learning Applications and Compiler Engineer!
Added 5 hours ago
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FPGA AI Accelerator Engineer
O-HIVE.AI
Windsor, ON
- Full-time
We are seeking a talented and motivated FPGA Engineer to join our engineering team and contribute to the development of hardware-accelerated spatial vision and edge AI systems.
Added 9 hours ago
X
Cloud Engineer
Xanadu
Toronto, ON
- Full-time
As a Cloud Engineer, you will contribute to the cloud platform and the infrastructure which hosts all our internal projects workloads. You will work on a team to support and maintain…
Added 9 hours ago
X
Data Platform Engineer
Xanadu
Toronto, ON
- Full-time
As a Data Platform Engineer, you will take Xanadu’s existing data pipelines and transform them into a cohesive data platform. Working alongside hardware researchers, data scientists, and…
Added 9 hours ago
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Sr. Equipment Engineer
Xanadu
Toronto, ON
- Full-time
As an industry leader in photonic quantum computing, Xanadu takes hardware very seriously! In this role, you will work within the Fabrication Process Engineering team to deliver Xanadu’s…
Added 9 hours ago
X
Senior Electrical Engineer
Xanadu
Toronto, ON
- Full-time
As part of the Hardware Team, you will work with our established team of physicists and engineers to develop high-performance custom electronic boards for photonic quantum computers. In the…
Added 9 hours ago
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Senior Photonics Engineer - Homodyne Detection
Xanadu
Toronto, ON
- Full-time
We are seeking a Senior Photonic Engineer – Integrated Homodyne to participate in designing, developing and experimentally validating cutting-edge photonic systems. You will be working with…
Added 9 hours ago
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Senior Photonic Engineer - Experimentalist
Xanadu
Toronto, ON
- Full-time
We are seeking a Senior Photonic Engineer – Experimentalist to participate in designing, developing and experimentally validating cutting-edge photonic systems. Your primary focus will be…
Added 9 hours ago
X
Senior Mechanical Engineer
Xanadu
Toronto, ON
- Full-time
As part of the Hardware Team in Toronto, you will take your experience in delivering complex mechanical, vibration-control and cooling solutions, and apply it to Xanadu's rack-scale quantum…
Added 9 hours ago
X
Senior Low Temperature Device Engineer (SNSPDs)
Xanadu
Toronto, ON
- Full-time
Added 9 hours ago
X
Senior Cryogenic Engineer
Xanadu
Toronto, ON
- Full-time
Xanadu is looking for a Cryogenic Engineer to lead designing, developing, and building Xanadu’s next generation cryostats as well as contribute to the build-out of our facility-level…
Added 9 hours ago
X
Senior Photonics Design Engineer
Xanadu
Toronto, ON
- Full-time
We are seeking a Senior Photonics Design Engineer to drive the design and scaling of state-of-the-art passive and active components powering Xanadu’s future fault-tolerant quantum hardware.…
Added 9 hours ago
X
Senior Photonics Engineer - Experimental Nonlinear Optics
Xanadu
Toronto, ON
- Full-time
As a member of the Hardware R&D Team, you will collaborate with our team to develop nonlinear optical devices on integrated nanophotonic platforms. You will design, build, and operate…
Added 9 hours ago
X
Photonics Test Engineer - Wafer Level
Xanadu
Toronto, ON
- Full-time
Serve as the point of contact for tool failures that exceed operator capabilities (e.g., diagnosing software bugs in the test scripts or troubleshoot hardware related issues).
Added 9 hours ago
X
Senior Photonics Design Engineer - Integrated Nonlinear Optics
Xanadu
Toronto, ON
- Full-time
Added 9 hours ago
X
Photonics Design and Control Engineer
Xanadu
Toronto, ON
- Full-time
In your role as a Photonics Design & Control Engineer, you will oversee the full lifecycle of active optical components - focusing heavily on high-order integrated optical filters - from…
Added 9 hours ago
X
Senior Analog ASIC Design Engineer
Xanadu
Toronto, ON
- Full-time
We are looking for an experienced and driven ASIC Engineer to join our hardware team and contribute to the development of cutting-edge photonic quantum computing systems. If you thrive on…
Added 9 hours ago
X
Photonics Engineer System Integration
Xanadu
Toronto, ON
- Full-time
We are looking for a hands-on, analytical, and driven Photonics Engineer to join our hardware team and accelerate the development of our Fault-Tolerant Quantum Computing (FTQC) systems. If…
Added 9 hours ago
X
Photonics Engineer - Experimentalist
Xanadu
Toronto, ON
- Full-time
As part of the Hardware R&D Team, you will work in a world class team of scientists and engineers to expand our efforts in developing key optical elements required for photonic quantum…
Added 9 hours ago
X
Layout and Design Engineer - SNSPDs (Superconducting Nanowire Single Photon Detectors)
Xanadu
Toronto, ON
- Full-time
Added 9 hours ago
X
Lead Engineer - Laser Systems
Xanadu
Toronto, ON
- Full-time
The Lead Engineer will architect and build the ultra-stable, low-noise laser engines powering the world’s first fault-tolerant photonic quantum computers, acting as both a system architect…
Added 9 hours ago
X
Sr. Packaging NPI Engineer
Xanadu
Toronto, ON
- Full-time
We are looking for a highly motivated and experienced Senior Packaging New Product Introduction (NPI) Engineer to join our dedicated engineering team. In this pivotal role, you will lead…

Lightmatter

Staff Photonics Design & PDK Modeling Engineer

Toronto, ON, Canada

Full-time

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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.

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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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