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Added 5 months ago
PI
Optical Engineer (Ph.D. / Early Career)
Photonic Inc.
Coquitlam, British Columbia
- Full-time
Photonic is seeking a talented Optical Engineer to support the design and engineering of optical sub-systems that advance our quantum computing roadmap. This is an excellent opportunity for…
Added 5 months ago
B
Professional Engineering - Air Systems/Pneumatics
Bombardier
Dorval, Quebec
- Full-time
You have knowledge of system design tools such as Model Based Engineering or simulation software
Added 5 months ago
P&
Ingénieur(e) certification logicielle - systèmes de contrôle (DO-178C) / Control Systems Software Certification Engineer (DO-178C)
Pratt & Whitney
Longueuil, Quebec
- Full-time
Appuyer les essais en simulation, sur banc moteur et en vol
Added 5 months ago
AI
Solution Engineer - Tooling (Vehicle Intelligence)
Applied Intuition
Owen Sound, Ontario
- Full-time
…validating intelligent systems at petabyte scale. As a Solution Engineer on the Tooling pillar, you will work with ADAS and AD engineering teams at OEMs and Tier 1s to architect and build…
Added 5 months ago
AI
Solution Engineer - Vehicle OS
Applied Intuition
Owen Sound, Ontario
- Full-time
We are looking for a bright engineer to help our customers solve complex technical problems across Applied Intuition’s Vehicle OS portfolio. In this role you will work closely with vehicle…
Added 3 months ago
MT
Principal RTL Design Engineer
Microchip Technology Inc.
Burnaby, British Columbia · Canada - Burnaby
- Full-time
…Guiding Values; we affectionately refer to it as the Aggregate System and it’s won us countless awards for diversity and workplace…
Added 1 month ago
N
Firmware DSP Engineer
Nokia
Canada
- Full-time
…Optical Modem ASIC, performing MATLAB and C++ modeling for system design, conducting real‑time firmware coding and API development, and contributing to digital ASIC simulation for system…
Added 1 month ago
HT
Engineer - 6G RF Packaging
Huawei Technologies Canada Co., Ltd.
Ottawa, ON
- Full-time
Huawei Canada has an immediate permanent opening for an Engineer.
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
M
Senior Design Engineer - Vehicle Systems
Multimatic
Markham, Ontario
- Full-time
The Vehicle Systems Department is currently seeking a Senior Design Engineer, with skills in complex systems integration and full vehicle system development. This role is suitable for…
Added 1 month ago
Digital Architect
Lightmatter
Toronto, ON
…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…
Added 1 month ago
Senior Digital Design Engineer
Astera Labs
Toronto, ON
As a Senior Digital Design Engineer, you will design and integrate high-performance connectivity silicon for the next generation of AI infrastructure. You will contribute across…
Added 6 months ago
F
Computer Vision & Behavioral Signal Analysis Intern (Healthcare 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 6 months ago
F
NLP Research Fellow
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 3 months ago
S
Principal Packaging Engineer
Semtech
Calgary, Alberta · Burlington, Ontario · Ottawa, Ontario · CAN - Ottawa, ON
- Full-time
…heart of this mission, bridging the gap between silicon and system through world-class IC package design, signal integrity engineering, and close collaboration with a global network of…
Added 1 month ago
X
Principal Analog ASIC Design Engineer
Xanadu
Canada
- Full-time
We are looking for an experienced and driven Analog IC Design Engineer to join our hardware team and contribute to the development of cutting-edge photonic quantum computing systems. If you…
Added 1 month ago
H
System Design Specialist, Intermediate
Hitachi
Toronto, ON · (RSBU) Toronto
- Full-time
The System Design Specialist, Intermediate will perform system design, signaling design, analysis, modelling, and simulation activities to specify Communication-Based Train Control (CBTC)…
Added 6 months ago
C
EMC Engineer
Cyient
Toronto, Ontario
- Full-time
Profile Reporting directly to the Electrical & EMC & EWIS manager, the EMC Engineer will be responsible for aircraft protection against electromagnetic threats, including inter-system EMI,…
Added 1 month ago
C
Senior Test Automation Engineer – AI Testing
Cognizant
Montreal, QC
- Full-time
…d’évaluation des biais, de la sécurité et des exercices de simulation d’attaque (red teaming) appliqués aux systèmes…
Added 1 month ago
M
Mechanical product simulation engineer (15 months contract)
Michelin
Magog, QC
- Full-time
Make a difference as Mechanical product simulation engineer.
Added 1 month ago
H
Software Architect - Vital Software
Hitachi
Toronto, ON · (RSBU) Toronto
- Full-time
…implementing software solutions, and ensuring alignment with system requirements and safety-critical development processes. Working under the direction of the Chief Software Architect, the…
Added 6 months ago
AS
Senior Software Engineer, Computation
Aurora Solar
Remote, Canada
- $126,000 to $187,000 CAD / year
- Full-time
- Remote
As a Senior Software Engineer on the System Design Pod, you'll help build the next generation of PV and storage design tools at Aurora. You'll lead technical features from discovery through…
Added 6 months ago
MS
Product Development Engineer Level 1
Morgan Solar
Toronto, Ontario
- $65,000 to $85,000 CAD / year
- Full-time
● Perform hardware development, validation testing, and test system design
Added 3 months ago
AG
Senior Radio Frequency System Specialist
ADGA Group Consultants Inc
Ottawa, Ontario
- $107,200 to $130,000 CAD / year
- Full-time
…solutions to Government and industry, specializing in C5ISRT, simulation and training, cyber and infrastructure security, and program delivery. With nearly 60 years of experience, ADGA…
Added 1 month ago
H
Senior Low-Level Control Engineer
Humanoid
Burnaby, BC
- Full-time
System identification toolchains and simulation environments (MATLAB/Simulink, MuJoCo, Gazebo); MJCF.

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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