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Added 1 month ago
PX
Staff Machine Learning Engineer – AI & Agentic Systems
Project X
Toronto, ON
- Full-time
Advanced Python development with strong production software-engineering practices (testing, CI/CD, Git)
Added 1 month ago
DI
Senior Python Application Developer, SQL and Snowflake, Capital Markets (1888)
Direct IT Recruiting Inc.
Toronto, ON
- $90 to $100 CAD / hour
- Contract
We are seeking a Senior Python Application Developer with strong SQL, Oracle, and Snowflake experience to join the Risk Division of a major investment management organization.
Added 1 month ago
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Managing Director, Data Product Lead - COO Group
RBC
Toronto, ON
- Full-time
Develop domain strategy aligned with Capital Markets objectives.
Added 1 month ago
FE
Senior RPA Automation Engineer
Future Electronics
Kirkland, QC
- Full-time
…skills (spoken and written) and the ability to collaborate with business users, IT teams, and…
Added 1 month ago
MT
Data Center Silicon Hardware Engineering Intern - Winter 2027
Marvell Technology
Toronto, ON · Ottawa, ON · CA-ON - Ottawa
- Full-time
Work with experienced engineers on the design, implementation, and verification of digital hardware blocks and subsystems.
Added 1 month ago
Senior Staff Electro-Optic Systems Architect
Lightmatter
Toronto, ON
Lightmatter is (re)inventing the future of computing with light!
Added 1 month ago
T
Développeur(euse) Full-Stack et intégration, SAP BTP | SAP BTP Full-Stack and Integration Developer
Talan
Montreal, QC
- Full-time
Talan is an international group that supports its clients in their end-to-end Data & AI transformation by combining management consulting with technological expertise.
Added 1 month ago
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Architecte de solutions SAP BTP et IA | SAP BTP AI Solutions Architect
Talan
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- Full-time
Talan is an international group that supports its clients in their end-to-end Data & AI transformation by combining management consulting with technological expertise.
Added 1 month ago
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Principal Site Reliability Engineer
Saviynt
Vancouver, BC
- $260,000 to $275,000 CAD / year
- Full-time
Strong programming skills in Go (Golang) and Python, with experience building robust, maintainable backend services and automation
Added 1 month ago
L
Senior Staff Electro-Optic Systems Architect
Lightmatter
Toronto, ON
- Full-time
Lightmatter is (re)inventing the future of computing with light!
Added 1 month ago
F
Senior Software Release QA Specialist
Fortinet
Burnaby, BC
- Full-time
Experience with programming or scripting skills (Python, Perl etc.)
Added 1 month ago
LD
Systems Engineer II
Leonardo DRS
Ottawa, ON · Kanata, ON
- Full-time
Experience with scripting or programming languages (e.g., Python, Java).
Added 1 month ago
LD
Systems Engineer
Leonardo DRS
Ottawa, ON · Kanata, ON
- Full-time
Experience with scripting or programming languages (e.g., Python, Java).
Added 1 month ago
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Staff Engineer - Inference /AI
Nutanix
Vancouver, BC
- $171,000 to $257,000 CAD / year
- Full-time
At Nutanix, we're simplifying the future of AI with the Nutanix Cloud Platform for AI, enabling organizations to easily build, fine-tune, and run Generative AI, Large Language Models…
Added 1 month ago
Systems Engineer II
Leonardo DRS, Inc.
Ottawa, ON · Kanata, ON
Experience with scripting or programming languages (e.g., Python, Java).
Added 1 month ago
NC
Associate, Financial Planning & Analysis, Corporate Finance
Northleaf Capital Partners
Toronto, ON
- Full-time
Northleaf is a global private markets investment firm focused on mid-market companies and assets. With US$32 billion in capital commitments raised to date, Northleaf has an established,…
Added 1 month ago
TC
Business Architect
Tata Consultancy Services
Mississauga, ON
- $100,000 to $130,000 CAD / year
- Full-time
…clients, its investors, its employees, and the community at large. With a highly skilled workforce spread across 56 countries and 194 service delivery centers across the world, the company…
Added 1 month ago
L
Product Coordinator
Liteline
Richmond Hill, ON
- Full-time
We are a privately-held, mid-sized organization with a flat structure and a strong bias for action. New hires get exposure to senior leadership early, work on real product decisions, and…
Added 1 month ago
Q
Conversational AI Architect
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Canada
- Full-time
Headquartered in Boston, with more than 4,000 professionals worldwide, we partner with global enterprises to deliver large-scale digital, cloud, and AI-driven transformation.…
Added 1 month ago
A
Jira Service Management Intake & Automation Developer : Toronto, ON (Hybrid) : FTE
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Toronto, ON
- Full-time
We are seeking a Jira Service Management Intake & Automation Developer to design, develop, and scale enterprise Jira Service Management solutions and workflow automation. The ideal…
Added 1 month ago
S
Regression Tester
Synechron
Toronto, ON
- $100,000 to $110,000 CAD / year
- Full-time
…maintain automated test scripts using Selenium, Playwright, Python, and JavaScript. Lead regression testing, execute test plans, identify defects, and ensure high-quality…
Added 1 month ago
MR
IT Reporting Specialist
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Mississauga, ON
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Unlike traditional BI developer roles focused on project-based delivery, IT Reporting Specialist role combines strategy as well as hands-on report development with ongoing operational…
Added 1 month ago
TC
Kafka Admin
Tata Consultancy Services
Mississauga, ON
- $100,000 to $130,000 CAD / year
- Full-time
…clients, its investors, its employees, and the community at large. With a highly skilled workforce spread across 56 countries and 194 service delivery centers across the world, the company…
Added 1 month ago
BD
Senior I/O Chiplet RTL Design Engineer
BTA Design Services
Ottawa, ON
- Full-time
The I/O chiplet connects die-to-die interfaces with multi-protocol high-speed I/O, combining UCIe, PCIe, Ethernet, static switching, and an embedded management subsystem. You will…
Added 1 month ago
TC
AI Deployment & Solutions Lead
Tata Consultancy Services
Toronto, ON
- $115,000 to $165,000 CAD / year
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TCS is an IT services, consulting, and business solutions organization that has been partnering with many of the world’s largest businesses in their transformation journeys for over 55…

Lightmatter

Senior Staff Electro-Optic Systems Architect

Toronto, ON, Canada

Full-time

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Job details

Job type: Full-time
Posting language: English
Posted: Sep 14, 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 hiring an Electro-Optic Systems Architect. The selected candidate will partner with external facing teams at Lightmatter and internal engineering teams to deliver groundbreaking products to the market. In this role, you will contribute to the design and development of innovative photonics architecture solutions to deliver high-volume products for our customers. In particular, you will be responsible for ensuring that Passage’s electrical-optical-electrical links are operational and meet customer requirements. You will engage with our cross-disciplinary engineering teams to model and analyze solutions. You may also test and measure prototypes to validate the models. This role requires a solid understanding of leading-edge CMOS, advanced silicon photonics, high-speed (40+ GHz) electro-optic interfaces, and 3D integration. The role also requires creativity, analytical skills, and clear communication skills. You are encouraged to represent the company at technical conferences as an example of our technical leadership.

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.

Responsibilities

Creative problem-solving and contributing to high-performance electro-optic architecture solutions for high-volume products.
Electro-optic system modeling using Cadence photonics-analog simulators (Verilog-A, Spectre, Virtuoso), VPI Photonics, and Keysight ADS.
Design the end-to-end electrical-optical-electrical system-level link to meet the customer requirements.
Co-design the silicon photonic devices with the photonics architecture and design teams based on the end-to-end simulation results.
Validate the models by designing high-speed RF experiments, conducting proof-of-concept experiments, and analyzing existing data.
Actively collaborate with electronics and photonics engineers to specify, design, and validate circuits that meet performance, power, and production requirements.
Document and present your contributions to internal and external stakeholders

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

Qualifications

A Ph.D. degree in Electrical Engineering or similar discipline with at least 5 years of relevant experience, or Master’s degree with at least 8 years of relevant experience.
Minimum 3 years of experience in electronic-photonic-electronic systems simulation
Minimum 2 years of experience in hardware testing and measurements of photonic high-speed optical modulators and receivers.
Proficient in Cadence photonics-analog simulators (Virtuoso, Spectre, Verilog-A), Ansys HFSS, Keysight ADS.
Highly proficient in coding simulations in Python or Matlab.
Highly proficient in RF/mm-wave analog circuit design.
Highly proficient modeling optical communication links.
Experience with corner analysis and Monte Carlo analysis.
Experience collaborating with photonics and electronics teams.

Preferred Qualifications

Experience in product development or projects with industry.
Silicon photonic integrated circuit design and test experience.
Knowledge of signal processing and signal integrity in optical communications.
Knowledge of SERDES and mixed signal interfaces.
Strong publication record.
Excellent written and verbal communication skills.
Willingness and ability to learn quickly. Self-starter with a “no task is too big or small” attitude.

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 designing and modeling high-performance electro-optic architecture solutions for high-volume products. Responsibilities include co-designing silicon photonic devices and validating models through high-speed RF experiments.

Requirements

Requires a Ph.D. with 5+ years of experience or a Master's with 8+ years, specifically in electronic-photonic-electronic systems simulation. Proficiency in Cadence tools, Python/Matlab, and RF/mm-wave analog circuit design is essential.

Skills

Electro-Optic System Modeling
Cadence Virtuoso
Spectre
Verilog-A
VPI Photonics
Keysight ADS
Ansys HFSS
Python
Matlab
Optical Communication Links
Silicon Photonics
3D Integration
Corner Analysis
Monte Carlo Analysis
Hardware Testing

Benefits

Comprehensive Health Care Plan (Medical, Dental & Vision)
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

Visa sponsorship

Not detected in the job text

Keywords

Photonics
Electro-Optics
CMOS
Silicon Photonics
3D Integration
Cadence
Virtuoso
Spectre
Verilog-A
VPI Photonics
Keysight ADS
Ansys HFSS
Python
Matlab
RF
mm-wave
Analog Circuit Design
Optical Communication
SERDES
Mixed Signal Interfaces
Signal Integrity
Monte Carlo Analysis
Corner Analysis
HPC
AI Infrastructure
Data Center Photonics

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