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Added 6 months ago
K
Software Engineer, AI
Klue
Toronto, Ontario
- $92,000 to $119,000 CAD / year
- Full-time
Strong Python fundamentals. You're comfortable with modern Python: type hints, async/await, FastAPI or a similar framework, SQLAlchemy or another ORM, pytest. You write clean, readable,…
Added 6 months ago
O
Développeur en tests logiciels - Software Developer in Test
OneSpan
Montreal, Quebec
- Full-time
A Software Developer in Test (SDET) is a hybrid role that blends software engineering expertise with deep testing skills. SDETs design, develop, and maintain automated test frameworks,…
Added 6 months ago
HI
US Portfolio Manager
Hillsdale Investment Management Inc.
Toronto, Ontario · Greater Toronto Area, Canada
- Full-time
Lead the architecture and continuous improvement of our quantitative research platform, partnering with engineering to translate research needs into production-ready systems.
Added 6 months ago
A
Principal Data Scientist (m/f/d)
AutoTrader.ca
Toronto, Ontario
- Full-time
…AI initiatives that influence millions of users worldwide, with a focus on both strategic vision and hands-on innovation. In this role, you’ll collaborate cross-functionally with product,…
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
C
Senior Software Developer (Burnaby)
Clio
Burnaby, BC · Vancouver, BC
- Full-time
The most important part of this job is that you approach new challenges with curiosity and a drive to apply what you learn to fixing root causes, not just symptoms. Deep curiosity and a…
Added 3 months ago
Q
Machine Learning Engineer, AI Processors (Sr to Staff)
Qualcomm
Markham, ON
- Full-time
Stay current with the latest advances in artificial intelligence, machine learning, and foundation models.
Added 1 month ago
OT
Senior Software Developer (Java)
Open Text Corporation
Richmond Hill, ON
- Other
…multi-tenant SaaS applications. We are looking for a Senior Software Developer with a focus on Backend and AI development to join our platform development…
Added 1 month ago
Digital Architect
Lightmatter
Toronto, ON
Lightmatter is (re)inventing the future of computing with light!
Added 1 month ago
Senior - Decision Modelling (Toronto)
EY
Toronto, ON
At EY, we’re all in to shape your future with confidence.
Added 1 month ago
NE
Junior Developer - Winter 2027 Co-op
Nexus Energy Inc.
Toronto, ON
- $20 to $22 CAD / hour
- Full-time
Job Title: Junior Developer - Winter 2027 Co-op
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
JG
Gen AI (AWS) Developer
J&M Group
Toronto, ON
- Full-time
We are seeking a GenAI Developer with 5-8 years of experience in designing, developing, and deploying AI-driven solutions. The ideal candidate should have strong expertise in Generative AI,…
Added 1 month ago
R&
Senior Actuarial Analyst, Property & Casualty
Robertson & Company Ltd.
Toronto, ON
- Full-time
Strong programming and analytical capabilities, ideally including Python and SQL; experience with PySpark is beneficial.
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
Litigation Support - Case Manager, eDiscovery & Litigation Support
Burnet, Duckworth & Palmer
Calgary, AB
Experience with platforms such as Microsoft Copilot, CoCounsel, CoWork, SQL, or Python, is an asset.
Added 1 month ago
DI
Test Automation Developer - Winter 2027 Co-op/Intern
Definity Insurance Company
Waterloo, ON
- Full-time
…future. That’s why it makes sense to choose a co-op placement with a company that offers truly rewarding work and real-life experience. At Definity®, your contributions, creativity, and…
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
A
Senior AI and Agentic Developer
Accenture
Ottawa, ON · Toronto, ON · Montreal, QC
- Full-time
As an Advanced AI, Large Language Model and Agentic AI Developer/Consultant, you will build production-grade AI applications that transform enterprise workflows. You will translate business…
Added 1 month ago
Senior Delivery Consultant - Connect and Lex, Amazon Connect Center of Delivery Excellence
Amazon
Toronto, ON
- 5+ years of experience as a contact center technology architect, enterprise IT Architect or senior contact center developer working with leading contact center technology platforms and…
Added 1 month ago
T
Manager, Web & Mobile Delivery (Bilingual)
TVO
Toronto, ON
- Full-time
Improve SDLC and CI/CD practices to increase developer velocity and reduce operational toil leveraging AI-assisted accelerated development with well-defined guardrails.
Added 1 month ago
RB
Sr. Audit Manager - Model Risk CoE
Royal Bank of Canada
Toronto, ON
- Full-time
…assessment of the effectiveness of model risk management practices with focus on AML, Credit Risk, Artificial Intelligence & Machine Learning (AI/ML), Stress Testing, Valuation, Market…
Added 1 month ago
JS
Senior Software Engineer, AI-Native Data Warehouse
Juniper Square
Remote, Canada
- Full-time
- Remote
Strong backend engineering experience with Python and frameworks such as FastAPI, Flask, Pyramid, or Django
Added 1 month ago
R
Sr. Audit Manager - Model Risk CoE
RBC
Toronto, ON
- Full-time
…assessment of the effectiveness of model risk management practices with focus on AML, Credit Risk, Artificial Intelligence & Machine Learning (AI/ML), Stress Testing, Valuation, Market…
Added 6 months ago
PE
Senior Manager, Energy Intelligence & Data Systems
PowerON Energy Solutions
Toronto, Ontario
- Full-time
Work with the energy management team to track relevant tariffs, incentive programs, market rules, and regulatory developments across IESO and other applicable energy markets

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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