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Added 5 months ago
F
Machine Learning Engineer
FactualIQ
Remote, Canada
- $160,000 to $190,000 CAD / year
- Full-time
- Remote
Expert-level Python programming with deep knowledge of ML frameworks (PyTorch, TensorFlow, or similar).
Added 3 months ago
GP
AI/ML Engineer Intern (2027)
Georgian Partners Growth
Remote, Canada
- Internship
- Remote
Are you an aspiring AI Engineer eager to gain real-world impact and learn how to push AI's boundaries? Imagine diving into diverse, cutting-edge AI problems across multiple high-growth…
Added 3 months ago
S
Senior Full Stack Engineer, App Runtime
Snowflake
Toronto, Ontario
- $245,250 to $295,250 CAD / year
- Full-time
As a Senior Full Stack Engineer, you will drive initiatives that span our product areas and tech stack. It’s a high-impact role - you will work on an early-stage, public-preview product.…
Added 1 month ago
B
Senior Cloud Engineer - Google Cloud Platform (GCP)
BDO
Toronto, ON
- Full-time
BDO is a firm built on a foundation of positive relationships with our people and our clients. Each day, our professionals provide exceptional service, helping clients with advice and…
Added 1 month ago
IT Systems Engineer - Identity
Asana
Vancouver, BC
As an Identity Engineer, you will support and implement our internal and cloud-based IT identity infrastructure and applications to increase efficiency through automation. You will…
Added 2 months ago
Senior Data/AI Engineer
Guidepoint
Toronto, ON
Integrate Intelligent Systems: Engineer solutions that seamlessly combine LLMs with our proprietary knowledge repositories, external APIs, and real-time data streams to create powerful…
Added 1 month ago
M
Applied AI Engineer
MANNARINO
Montreal, QC
- Full-time
We are seeking an Applied AI Engineer to help implement secure, reliable AI-assisted workflows for engineering and business activities. The successful candidate will report to the person…
Added 1 month ago
C
Product Security Engineer, North Security
Cohere
Remote, Canada
- $180,000 to $385,000 USD / year
- Full-time
- Remote
We are a global technology company headquartered in Toronto with key offices in London, New York City, San Francisco, Montreal, Paris, Berlin and Seoul. Join us!
Added 5 months ago
QT
Senior Applied AI Engineer - Product & Revenue Systems
QEA Tech
Markham, Ontario
- Full-time
Work with QEA’s data pipelines, imagery, analysis outputs, and customer data to continuously improve AI systems and product capabilities.
Added 5 months ago
RA
Staff Embedded Software Engineer, Virtualization
Rivian and Volkswagen Group Technologies
Vancouver, British Columbia
- $137,300 to $181,890 CAD / year
- Full-time
As a Staff Embedded Software Engineer, you will transform real-world ECU firmware into high-performance virtual devices that run on everyday workstations and cloud servers. Your work closes…
Added 5 months ago
DI
Founding Engineer (Python / FastAPI / LLM)
Daixta intelligence
Remote, Canada
- $60,000 to $70,000 CAD / year
- Full-time
- Remote
You'll be the founding engineer at Daixta. You'll build the product end-to-end with the founder from prototype to first paying customer.
Added 5 months ago
E
Backend Performance & Systems Engineering (Project)
Elumai
Remote, Canada
- Full-time
- Remote
…without intermediary management so you would work directly with the founder and frontend…
Added 5 months ago
Z
Senior Backend Engineer (.NET & AI/ML)
Zonda
Toronto, Ontario
- $110,000 to $130,000 CAD / year
- Full-time
We are hiring a Senior Backend Engineer with strong .NET and AI/ML expertise to design and build scalable, high-performance backend systems and AI-powered features for NewHomeSource.com and…
Added 5 months ago
Z
Senior Backend Engineer (.NET & AI/ML)
Zonda
Montreal, Quebec · Greater Montreal Metropolitan Area
- $110,000 to $130,000 CAD / year
- Full-time
We are hiring a Senior Backend Engineer with strong .NET and AI/ML expertise to design and build scalable, high-performance backend systems and AI-powered features for NewHomeSource.com and…
Added 5 months ago
Z
Senior Backend Engineer (.NET & AI/ML)
Zonda
Vancouver, British Columbia
- $110,000 to $130,000 CAD / year
- Full-time
We are hiring a Senior Backend Engineer with strong .NET and AI/ML expertise to design and build scalable, high-performance backend systems and AI-powered features for NewHomeSource.com and…
Added 5 months ago
F
Computer Vision & Behavioral Signal Analysis Intern (Travel + Hospitality Focus)
FairwAI
Remote, Canada
- Remote
…Engineering, B.S. in Physics, M.S. in Electrical Engineering, an Engineer’s Degree, and a Ph.D. in Electrical Engineering. He earned the David Adler Memorial Thesis Prize and the Morris…
Added 5 months ago
F
Senior Frontend Engineer
Forma.ai
Toronto, Ontario
- $140,000 to $175,000 CAD / year
- Full-time
Familiarity with Python, Django, APIs, Postgres, or backend systems.
Added 5 months ago
K
Software Engineer, AI
Klue
Toronto, Ontario
- $92,000 to $119,000 CAD / year
- Full-time
We're looking for a Software Engineer with production experience to join our Toronto AI engineering team. You'll help us build and improve the LLM-powered agent systems that turn millions…
Added 3 months ago
EN
Sr Principal SW Systems Engineer (10342)
Extreme Networks
Toronto, ON
- Full-time
Become part of something big with Extreme! As a global networking leader, learn why there is no better time to join the Extreme team.
Added 3 months ago
Q
Machine Learning Engineer, AI Processors (Sr to Staff)
Qualcomm
Markham, ON
- Full-time
We are seeking a talented Machine Learning Engineer to join the Qualcomm AI Processor Solutions team, where you will help develop next-generation AI applications for Qualcomm Snapdragon…
Added 1 month ago
Digital Architect
Lightmatter
Toronto, ON
Lightmatter is (re)inventing the future of computing with light!
Added 1 month ago
EV
Senior Quality Assurance Automation Engineer
Epiphan Video
Ottawa, ON
- Full-time
Epiphan Video is looking for a Senior QA Automation Engineer with a strong Python and Playwright background to own test automation for our devices and Multimedia Platform. Join our QA team…
Added 1 month ago
Senior Digital Design Engineer
Astera Labs
Toronto, ON
Use Synopsys and Cadence design and analysis tools, along with Python or Perl scripting, to improve design productivity and automation.
Added 1 month ago
R
Director, DevOps Regulatory Engineering
RBC
Toronto, ON
- Full-time
Strong engineering background in CI/CD, DevOps tooling and cloud platforms, with hands-on experience in Java and Python
Added 1 month ago
Senior Delivery Consultant - Connect and Lex, Amazon Connect Center of Delivery Excellence
Amazon
Toronto, ON
- Experience with automation and scripting (e.g., Terraform, Python)

Lightmatter

Digital Architect

Toronto, ON, Canada

$123,000 - $175,000 CAD

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Job details

Pay: $123,000 - $175,000 CAD
Posting language: English
Posted: Sep 10, 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!

About this Role

Lightmatter builds chips that enable extreme-scale artificial intelligence computing clusters. If you're a collaborative engineer or scientist who has a passion for innovation, solving challenging technical problems, and doing impactful work like building the world's first optical computers, consider joining the team at Lightmatter!

We are hiring a Digital Architect for high-speed photonic (mixed-signal) communication chips. The selected candidate will partner with the internal engineering team to deliver groundbreaking products to the market. As an architect, you will provide detailed technical documents that describe what needs to be built to the engineering team. This will require a solid understanding of process technology, state of the art in chip design, and clear communication skills. In this role, you will be defining the architecture of the digital circuits that enable a ground-breaking photonic-based communication fabric. Your work will not only enable the AMS/photonic devices at low-level but also enable the necessary interfaces with the firmware/software.

You will report directly to the Sr. Director of Architecture, but you will also work closely with our digital, analog, photonic, and software teams. We are particularly looking for someone with expertise in architecting digital circuits to enable high-speed AMS circuits, with a strong preference for someone with experience in photonic circuits.

Join a tight-knit team where each individual’s contributions directly influence the success of the company and product. You'll have the opportunity to build a new kind of computer from the ground up and to solve groundbreaking challenges along the way. Work with people who love to build and who thrive in technically diverse environments where great ideas are prioritized.

Key Responsibilities

Responsible for the digital architecture from initial concept through high-volume production.
Architect and specify system level digital designs integrating complex AMS and photonic circuits. These circuits include high-speed drivers and receivers, SerDes, ADC/DAC, photonic modulators and detectors.
Work closely with test and validation engineers to validate hardware against simulation prediction.
Actively collaborate with the RTL and DV teams to enable block-level implementation and verification, respectively.
Author, review, and validate architectural specifications.

This is not a complete listing of the responsibilities. It’s a representation of the things you will be doing.

Qualifications:

3+ years and a Masters’ degree in Electrical or Computer Engineering.
Knowledge of power-efficient digital design flow for high-speed AMS electronics, preferably on photonic communication channels.
Understanding of digital circuit design in a high-speed analog/photonic link, including device bring-up, control, and digital signal processing.
Demonstrated strong problem solving skills specifically pertaining to problems that do not have obvious solutions.
Demonstrated strong written and verbal communication skills.

Preferred Qualifications:

Ability and desire to collaborate in a cross-disciplinary team.
Power user of multiple development tools, including CAD tools, SPICE simulators, IBIS-AMI simulators, and general programming languages (e.g., MATLAB or Python).
Willing and able to learn quickly. Self-starter with a “no task is too big or small” attitude.
Innovative and flexible; realizes that a one-size-fits-all approach will not always solve the problem at hand.
Data-driven and analytical; translates numbers into actionable strategies.
Process-oriented and programmatic: builds structure through processes that can be relied upon across the organization.

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.

$123,000 - $175,000 CAD

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

Define and specify the digital architecture for high-speed photonic communication chips from concept to production. Collaborate with RTL, DV, and AMS teams to integrate complex circuits and validate hardware against simulations.

Requirements

Requires a Master's degree in Electrical or Computer Engineering with 3+ years of experience in power-efficient digital design for high-speed AMS electronics. Strong problem-solving and communication skills are essential, with a preference for experience in photonic circuits.

Skills

Digital Architecture
Mixed-Signal Communication
Photonic Circuits
AMS Circuits
SerDes
ADC/DAC
RTL
Digital Verification
SPICE Simulation
IBIS-AMI Simulation
MATLAB
Python
CAD Tools
Digital Signal Processing
Hardware Validation
Technical Specification Authoring

Benefits

Comprehensive Health Care Plan
Medical Insurance
Dental Insurance
Vision Insurance
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

Photonics
AI Data Center
HPC Workloads
Digital Architecture
Mixed-Signal
AMS
SerDes
ADC
DAC
Photonic Modulators
Photonic Detectors
RTL
DV
SPICE
IBIS-AMI
MATLAB
Python
CAD
Digital Signal Processing
Chip Design
3D-Stacked Photonics
Optical Computing
Hardware Validation
Electrical Engineering
Computer Engineering

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