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Added 8 mins ago
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Information Technology - Senior/Lead, Data Visualization Engineer, Product Business Technology
Aritzia
Vancouver, BC
- Full-time
Aritzia is growing, and our Product Business Technology team is growing with it. This is a unique opportunity to join the Product Business Technology department, where you will be part of…
Added 8 mins ago
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AI Onboarding Specialist
Vendasta
Saskatoon, SK
- Full-time
You’ll work with AI Automation Specialists, Product, Customer Success and Sales.
Added 23 mins ago
Director of Firmware Engineering
Celero Communications, Inc.
Ottawa, ON
Celero is seeking an experienced, hands-on, and strategic Director of Firmware Engineering to lead the architecture, development, and validation of embedded firmware for our next-generation…
Added 23 mins ago
Senior Geotechnical Applications Engineer
Mattr
AB · Edmonton, AB
Lead field investigations and root cause failure analyses, own the technical outcome, document findings, and develop practical corrective and preventive recommendations in partnership with…
Added 23 mins ago
AI
Teamcenter Compliance Architect
Aptino, Inc.
Canada
- Contract
We are looking for an experienced Teamcenter Compliance Architect to lead the architecture and design of enterprise product and materials compliance solutions. The ideal candidate will have…
Added 23 mins ago
RC
ServiceNow Architect
RSM Canada
Toronto, ON
- Full-time
Lead the architecture and technical design of complex ServiceNow implementations, enhancements, integrations, and transformation initiatives.
Added 23 mins ago
KB
Procurement Coordinator
KOLER BUILDERS
ON · Ontario, Canada
- Full-time
Sourcing & Purchasing Support: Distribute RFQs, log vendor quotations, assist with comparison sheets, prepare draft purchase orders, and track lead times and shipping dates.
Added 23 mins ago
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Technical Delivery Manager
Deloitte
Toronto, ON
- Full-time
Set product direction and lead delivery from ideation through launch, including key milestones, demos and release planning.
Added 23 mins ago
TL
Senior Project Manager
Tek Leaders Inc
Toronto, ON
- Contract
Lead cross-functional engineering, QA, and product teams, removing technical blockers and fostering high performance.
Added 23 mins ago
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Director, Pharmacy Operations
Pillway
Brampton, ON
- Full-time
Automation and systems. Kroll workflow, automated dispensing (Parata, PacMed) and the operations side of new tooling, in partnership with our product and engineering teams.
Added 23 mins ago
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Product Solution Project Manage
Quectel
Richmond, BC
- Full-time
Collaborate with the business, supply chain and product cost departments to lead the establishment of cost models (BOM/ manufacturing/ R&D investment) and quotation strategies, ensuring…
Added 23 mins ago
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Principal Designer- Material Handling
Fluor Corporation
Calgary, AB
- Full-time
Fluor is one of Canada's top employers and is recognized globally as a leader in the Engineering, Procurement, Construction, Fabrication, and Maintenance industry. Our focus on innovation…
Added 23 mins ago
LG
Systems Integration Manager
Lotus Group
AB · Edmonton, AB
- Full-time
…the primary connection between the company and its customer engineering teams, overseeing the co-development and execution of large-array and custom equipment integration projects. This…
Added 23 mins ago
ZS
(IAE)Integration Architect
Zodiac Solutions, Inc
Calgary, AB
- Full-time
Minimum 10 years of relevant experience in solution architecture, application architecture, performance engineering, or enterprise technology delivery.
Added 23 mins ago
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Technical Expert, Engineering - EWIS Integrator
Cyient
Montreal, QC
- Full-time
As a Technical Expert, Engineering - EWIS Integrator, you will act as a technical authority, shape design strategy, and lead enterprise-level technical alignment and capability development.…
Added 39 mins ago
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Sales Operations Analyst - Payward Services
Kraken
Remote, Canada
- Full-time
- Remote
Coordinate contributions from Legal, Compliance, Security, Product, Engineering, and other internal teams, establishing deadlines and driving follow-up to ensure timely, complete responses
Added 54 mins ago
Front Line Leader - Finished Products
Global Cellulose Fibers
Grande Prairie, AB
…Shipping and Traffic areas. The leader is also responsible for product quality, schedule adherence, safety, training, staffing, engagement and overall shift…
Added 54 mins ago
ST
Fabricator
Sinclair Technologies
Aurora, ON
- $17.95 to $21.6 CAD / hour
- Full-time
…manufacturing. With a strong focus on R&D, we continue to expand our product offerings and offer industry-leading technical…
Added 54 mins ago
PR
Lead Structural Engineer - Solar
Polar Racking Inc.
Mississauga, ON
- Full-time
We're looking for a senior structural engineer to lead the technical work specific to this product line - coordinating steel calculations, reviewing drafters' connection details, and…
Added 54 mins ago
T
Senior Engineering Manager
TekRek
Toronto, ON
- Full-time
This is a senior engineering leadership seat for someone who runs an organization through other leaders. You will own delivery across several product squads, each led by a technical lead,…
Added 1 hour ago
Account Manager
Syntronic
Ottawa, ON
Are you ready to join a leading global engineering design house specializing in embedded software/hardware, electronics, and electro-mechanics? We are seeking an energetic and enthusiastic…
Added 1 hour ago
TT
Systems Design Engineer III
Teledyne Technologies Incorporated
Waterloo, ON · Canada - Waterloo, ON
- Full-time
Join Teledyne’s Semiconductor Engineering team and help turn advanced imaging technology into reliable, manufacturable products. As a Design Specialist in Systems Engineering, you’ll lead…
Added 1 hour ago
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Applied Researcher
eBay
Toronto, ON
- Full-time
…ad performance and delivering actionable insights. You will lead our efforts in data analysis, uncovering trends, and driving data-informed decisions that support our advertisers'…
Added 1 hour ago
Senior Developer
Scotiabank
Toronto, ON
The Product Onboarding team is seeking a hands-on Senior Engineer to design and deliver modern, cloud-native onboarding applications using JavaScript, TypeScript, MongoDB, Express.js,…
Added 1 hour ago
Product Evaluation & Costing Technologist, Sr.
Woodbridge
Mississauga, ON
Represent the product evaluation and costing group at APQP, VA/VE and customer meetings, and price engineering changes.

Lightmatter

Machine Learning Infrastructure Researcher

Toronto, ON, Canada

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Job details

Experience: PhD in Computer Science, Electrical Engineering, or a related field and at least 10 years of industry or research experience in the field.
Posting language: English
Posted: Nov 4, 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!

Lightmatter is seeking a Principal of Machine Learning Infrastructure Researcher to join our Machine Learning team. This team is focused on inventing novel hardware systems using Lightmatter technology and modeling the performance of Lightmatter-enabled systems on both training and inference workloads.

This is primarily a creative role where you need to think outside the box to push the boundaries of systems research with the power of silicon photonics at your fingertips. This role will work closely with our product, solutions architecture, and engineering teams to generate impactful performance analysis, create high-performance rack-scale designs, and publish cutting-edge ML systems research.

Responsibilities:

Stay up to date on the latest advancements in Machine Learning research.
Build tools to model the performance of Passage-enabled systems when running both training and inference workloads for the latest AI models.
Collaborate with our product and solutions architecture teams to design compelling reference platforms for our customers, powered by Lightmatter technology.
Function as the Machine Learning expert in the room.
Publish academic papers at top industry conferences and journals. Help support the publication of whitepapers, blog posts, and other marketing collateral.
Lead a small team of Machine Learning engineers

Qualifications:

PhD in Computer Science, Electrical Engineering, or a related field and at least 10 years of industry or research experience in the field.
Solid background in Machine Learning systems research and experience with performance evaluation and performance modeling.
Hands-on experience with machine learning / deep learning methods and extensive knowledge of Large Language Model training and inference frameworks.
Academic publications in relevant journals and industry conferences.
Strong knowledge of AI systems, including compute (GPUs, TPUs, etc.) and networking (Ethernet, Infiniband, NVLink, etc.) technologies, and their various topologies, paradigms, and trade-offs.
Proven track record leading a team to deliver published results.

Preferred Qualifications:

Demonstrated ability to creatively problem-solve and apply first-principles thinking to generate novel ideas, particularly in ambiguous, evolving environments.
Exceptional skills in communicating complex research outcomes and technical concepts to partners and internal stakeholders, while embodying our value of speaking truth.
Ability to work across research, product, and business functions, rolling up your sleeves to bridge gaps and accelerate outcomes, while demonstrating the core value of "We are one Lightmatter."
Adaptable and versatile, thriving in a high-speed, high-precision environment.
Experience in managing engineers and leading projects, with the ability to lift up the team, and work with high standards and high collaboration.

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 role involves inventing novel hardware systems using Lightmatter technology and modeling the performance of these systems for AI training and inference workloads. You will also lead a team of machine learning engineers and collaborate with product and architecture teams to design reference platforms.

Requirements

Candidates must hold a PhD in Computer Science, Electrical Engineering, or a related field with at least 10 years of industry or research experience. A strong background in machine learning systems research, performance modeling, and experience with large language model frameworks is required.

Skills

Machine Learning
Systems Research
Performance Modeling
Deep Learning
Large Language Models
Silicon Photonics
AI Infrastructure
Performance Evaluation
Compute Architectures
Networking Technologies
GPU
TPU
Ethernet
Infiniband
NVLink
Team Leadership

Benefits

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

Visa sponsorship

Not detected in the job text

Keywords

Machine Learning
Infrastructure
Photonics
Passage
AI
HPC
Silicon Photonics
Performance Analysis
Rack-scale Design
Deep Learning
Large Language Models
GPU
TPU
Ethernet
Infiniband
NVLink
Systems Research
Performance Modeling
Academic Research
Whitepapers
Team Leadership
Computer Science
Electrical Engineering
Data Center
Inference
Training

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