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Added 2 months ago
EP
Project Manager
Energy Power Systems Australia
Mulgrave, NS
- Full-time
At Energy Power Systems Australia (EPSA), our team members work together to design, deliver and support the sustainable power solutions industries depend on.
Added 2 months ago
NB
Senior Data Scientist Model Validation
National Bank of Canada
Montreal, QC
- Full-time
…Agility, Model Validation, Resiliency, Statistical Analysis Systems Programming, Storytelling,…
Added 2 months ago
HH
Director of Manufacturing
Highbridge Human Capital
Princeton, BC
- Full-time
…operational strategy for the manufacturing system, and builds the systems, infrastructure, and leadership capability required to support BC Green’s goal of setting the global standard for…
Added 2 months ago
Assistant Project Manager
FCC Canada
Toronto, ON
…present in 25 countries, and its activities cover all areas of engineering and construction. It is a leader in the execution of transport infrastructure, as well as in residential and…
Added 2 months ago
Graduate Associate (Western Canada)
Orica
Calgary, AB · Kamloops, BC
Applications for Orica’s 2027 Engineering Leadership Development for (Engineering Graduate Associate) Program are now open!
Added 2 months ago
Project Controls Manager
Aecon
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…everyday life through the roads, bridges, tunnels, and transit systems that connect communities. With more than a century of experience and a full suite of integrated services, Aecon is a…
Added 2 months ago
Staff/Sr Staff Electro-Optic Link Codesign Engineer
Lightmatter
Toronto, ON
We are seeking a Sr. Staff Engineer, Photonic Link Co-Design to join our Laser Systems Architecture & Engineering team. This is one of the most technically demanding roles at Lightmatter:…
Added 3 months ago
DD
Aircraft Configuration & Layout Engineer
Dominion Dynamics
Remote, Canada
- Full-time
- Remote
Reports to: Head of Engineering / ACP Program Lead
Added 2 months ago
WP
Intermediate Project Engineer
Wood PLC
Calgary, AB
- Full-time
Wood is seeking an Intermediate Project Engineer to provide engineering and procurement support across a variety of projects within our Oil, Gas & New Energies Canada team. The role will…
Added 2 months ago
WP
Intermediate / Senior Project Engineer
Wood PLC
AB · Edmonton, AB
- Full-time
…across cost, schedule, technical conformance, HSSEA, quality, engineering coordination, procurement, construction support and change…
Added 2 months ago
UT
Développeur(se) logiciel sénior, optimisation d'actifs 3D (C++) / Senior Software Developer, 3D Asset Optimization (C++)
Unity Technologies
Montreal, QC · CAN-Montreal
- Full-time
We are hiring a Senior C++ Developer to join our Industry Engineering team here at Unity, based in our Montreal office and working closely with engineers and and clients based in the North…
Added 2 months ago
UT
Senior Software Engineer, QA
Unity Technologies
Montreal, QC · CAN-Montreal
- Full-time
We are seeking a Senior Quality Engineer to join a newly established engineering team within the Unity Platforms Organization. This team is responsible for delivering Unity platform support…
Added 2 months ago
KA
Aircraft Fleet Engineer
KF Aerospace
Ottawa, ON
- $102,500 to $128,000 CAD / year
- Full-time
The Future Aircrew Training (FAcT) Program is an aircrew training program to prepare pilots, Air Combat Systems Operators, and Airborne Electronic Sensor Operators to meet the future…
Added 2 months ago
B
Fire Alarm Technician
BGIS
Montreal, QC
- Full-time
…fire extinguishers, fire doors/separations, and fire alarm systems,…
Added 2 months ago
Senior Electrical Engineer, Water & Wastewater
WSP
Calgary, AB
…dynamic electrical team and dive into the intricate world of engineering design on power distribution, control systems, communication networks, lighting, fire alarms, and security systems…
Added 2 months ago
Senior Electrical Engineer, Water & Wastewater
WSP
Thornhill, ON
…dynamic electrical team and dive into the intricate world of engineering design on power distribution, control systems, communication networks, lighting, fire alarms, and security systems…
Added 2 months ago
C
Integrated Solution Leader Submarine
CAE
Halifax, NS · Ottawa, ON · Montreal, QC
- Full-time
The Training Systems Integrated Solution Leader (ISL) (Submarine) is part of a specialized team responsible for designing integrated training and simulation solutions that support defense…
Added 2 months ago
C
Integrated Solution Leader
CAE
Ottawa, ON · Montreal, QC
- Full-time
Knowledge of systems engineering development processes.
Added 2 months ago
A
Senior Network Analyst
Agropur
Longueuil, QC · St-Hubert Campus
- Full-time
Provide engineering expertise on specific platforms/services/products for successful integration and operation of the platforms/services/products in the network.
Added 2 months ago
Nuclear Quality Manager
GHD Group Pty Ltd
Mississauga, ON
…SMRs, and new build programs, GHD is investing in the people, systems, and capabilities required to support our clients throughout the nuclear project lifecycle. We are building a leading…
Added 2 months ago
Graduate Associate (Eastern Canada)
Orica
Sudbury, ON
Applications for Orica’s 2027 Engineering Leadership Development for (Engineering Graduate Associate) Program are now open!
Added 5 months ago
K
Senior Manager, Financial Crimes- Data Analytics
KPMG
Ottawa, ON · Toronto, ON · Montreal, QC
- Full-time
…Conduct data analytics to test and validate financial crime systems and models using SQL, Python, R, and other programming languages, performing statistical analyses on samples,…
Added 2 months ago
AU
Senior Engineer, Planning
Apex Utilities Inc.
Leduc, AB
- Full-time
· Providing technical expertise related to system modelling, engineering standards, regulatory requirements, and emerging technologies.
Added 2 months ago
K
Senior Consultant, Procurement Transformation
KPMG
Calgary, AB · Vancouver, BC · ON · Toronto, Ontario
- Full-time
Analyze current processes, systems, data, planning policies, and organizational capabilities to identify gaps and opportunities for improvement.
Added 2 months ago
K
Manager, ServiceNow Technical Lead
KPMG
Calgary, AB · Vancouver, BC · Halifax, NS · Ottawa, ON · ON · Toronto, Ontario
- Full-time
Bachelor’s degree in Computer Science, Computer Engineering, or a related technical field from an accredited college or university, or equivalent work experience. A Master's degree in…

Lightmatter

Staff/Sr Staff Electro-Optic Link Codesign Engineer

Toronto, ON, Canada

$180,000 - $260,000 USD

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Job details

Pay: $180,000 - $260,000 USD
Posting language: English
Posted: Sep 3, 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 seeking a Sr. Staff Engineer, Photonic Link Co-Design to join our Laser Systems Architecture & Engineering team. This is one of the most technically demanding roles at Lightmatter: you will own the end-to-end simulation, co-design, and laboratory verification of photonic-electronic links in Passage™ - from photonic device modeling through to full transceiver channel characterization in silicon.

You will build and maintain the high-fidelity simulation infrastructure that links optical device performance to system-level BER and link margin, drive co-design between photonic and analog circuit teams, and close the loop between simulation and lab measurement on every tape-out. This role sits at the center of how Lightmatter ensures Passage links meet performance at every process corner - and is the technical anchor for photonic-electronic integration quality.

The right candidate is equally fluent in photonic simulation environments and at a high-speed electro-optic lab bench, and has the seniority to drive architecture decisions with data.

Responsibilities

Develop, own, and continuously improve electro-optic link simulation models covering photonic device, propagation, and channel BER - from electron to photon to electron.
Build multi-physics models that combine optical propagation (VPI Photonics, Lumerical INTERCONNECT / FDTD, sax), analog circuit behavior (Cadence Virtuoso / Spectre, Verilog-A)) into a coherent link analysis framework.
Execute comprehensive corner analysis, Monte Carlo variation sweeps, and process-voltage-temperature (PVT) studies to bound link margin; generate actionable specification tightening recommendations for device and circuit teams.

Work closely with analog circuit designers to co-optimize transmitter driver and receiver front-end for the photonic device interface; drive joint simulation across the optical-electrical boundary.
Contribute to photonic link budgets end-to-end: optical power, modulation efficiency, receiver sensitivity, noise floor, and SNR/OSNR margins.

Contribute to simulation-to-silicon closure methodology for Passage optical links; author test protocols, define measurement sequences, and iterate link models against measured data across process splits and device corners.
Identify and diagnose root causes of link performance gaps - distinguishing photonic, electrical, and integration origins - and drive corrective design actions.

Author and review photonic link architectural specifications, co-design interface requirements, and design-entry criteria for photonic and circuit teams.
Contribute to Passage product-level link planning: propose photonic and electronic co-design opportunities to improve link margin, power efficiency, or yield.

Requirements:

PhD in Electrical Engineering, Applied Physics, Physics, or a closely related photonics/optics discipline and 5+ years of experience; or MS + 8 years of directly relevant industry experience at a photonic IC, transceiver, or optical interconnect company.
Deep expertise in photonic device physics and system-level optical link design: silicon photonic modulators, Ge photodetectors, passive WDM components, optical amplifiers, and coherent or intensity-modulated link topologies.
Hands-on proficiency with photonic simulation: VPI Photonics, Lumerical FDTD / INTERCONNECT, or equivalent optical propagation and circuit co-simulation tools.
Experience with analog and mixed-signal simulation: Cadence Virtuoso / Spectre, Verilog-A behavioral modeling, or Keysight ADS for electrical-optical co-simulation.
Demonstrated experience developing and executing optical link budgets, corner analyses, and simulation-to-measurement closure workflows.
Demonstrated high-speed lab skills: vector network analyzers (VNA) / S-parameter characterization, optical spectrum analyzers, high-bandwidth real-time oscilloscopes, BER test sets, optical modulation analyzers (OMA), and optical power meters.
Proficiency in Python for simulation scripting, measurement automation, and statistical post-processing.
Excellent written and verbal communication; able to drive architecture and specification discussions with device and circuit teams.
Familiarity with SERDES architecture: equalization topologies (FFE, DFE, CTLE), CDR, and mixed-signal PHY co-design for high-speed interfaces.

Preferred Qualifications

Silicon photonics tape-out and post-silicon characterization experience; familiarity with PDK-level device models and extracted simulation vs. measurement correlation.
Exposure to co-packaged optics (CPO), near-package optics (NPO), or optical I/O chiplet integration challenges.
Signal processing knowledge: DSP for optical communications, forward error correction (FEC), or PAM-4 / NRZ / coherent modulation format trade-offs and simulation.
Experience with Monte Carlo and statistical design methodologies in the context of photonic-electronic system co-design.

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.

$180,000 - $260,000 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

The engineer will own the end-to-end simulation, co-design, and laboratory verification of photonic-electronic links within the Passage™ platform. They will drive collaboration between photonic and analog circuit teams to ensure performance across all process corners.

Requirements

Candidates must hold a PhD in a relevant field with 5+ years of experience, or an MS with 8+ years of industry experience. Deep expertise in photonic device physics, high-speed lab characterization, and simulation tools like VPI Photonics and Cadence is required.

Skills

Photonic device physics
System-level optical link design
Silicon photonics
VPI Photonics
Lumerical FDTD
Cadence Virtuoso
Verilog-A
Python
Vector network analyzers
Optical spectrum analyzers
BER test sets
SERDES architecture
Monte Carlo analysis
Signal processing
Optical interconnects
Mixed-signal simulation

Benefits

Comprehensive Health Care Plan
Life Insurance
Generous Time Off
Paid Family Leave
Short Term & Long Term Disability
Training & Development
Commuter Benefits
Equity Grants

Visa sponsorship

Not detected in the job text

Keywords

Photonics
Silicon Photonics
Electro-Optic
Co-design
Transceiver
BER
Link Margin
Cadence Virtuoso
Spectre
Verilog-A
Lumerical
VPI Photonics
Python
VNA
SERDES
DSP
PAM-4
Co-packaged optics
Chiplet
Monte Carlo
PVT
Optical I/O
Data Center
AI Infrastructure
HPC
Passage
Photonic IC
Mixed-signal
PHY
Simulation

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