Software engineer jobs in Toronto, ON and nearby

Within 25 km

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Added 1 month ago
IT - Senior Software Engineer
Mohawk Medbuy Corporation (MMC)
Toronto, ON
We are currently recruiting for a Senior Software Engineer to support our IT – Application Development team.
Added 1 month ago
Staff Site Reliability Engineer
KEV Group
Toronto, ON
KEV builds mission-critical financial software for K12 schools across North America. Our platform provides real-time visibility and control over how funds are collected and managed,…
Added 1 month ago
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Principal Software Engineer, Health Data & Interoperability (Remote)
Verto Health
Toronto, ON
- $165,000 to $190,000 CAD / year
- Full-time
As Principal Software Engineer, Health Data & Interoperability, you will be the senior technical voice on our engineering team and the owner of the data architecture underneath the product.…
Added 1 month ago
Senior Software Engineer (Patient)
PocketHealth
Toronto, ON
As a Senior Software Engineer on our Patient team, you will have the opportunity to apply your backend or fullstack expertise towards building the next generation of our core infrastructure…
Added 1 month ago
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Software Engineer, Commercial Software
Waabi
Toronto, ON
- $149,000 to $220,000 CAD / year
- Full-time
On the Commercial Software team, we are building the platform that interfaces with the autonomous vehicle while enables customers and internal operations to manage fleet of trucks. We're a…
Added 1 month ago
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Senior Software Engineer (Provider)
PocketHealth
Toronto, ON
- Full-time
As a Senior Software Engineer on our Provider team, you will have the opportunity to apply your Full Stack expertise towards building the next generation of our core infrastructure that…
Added 1 month ago
SS
Senior Java Software Engineer
Soho Square Solutions
Toronto, ON
- Contract
Added 1 month ago
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Senior Java Software Engineer
PeoplePilot
Toronto, ON
- $100,000 to $120,000 CAD / year
- Full-time
Apply Test-Driven Development (TDD) practices to drive software design, maximize test coverage, and prevent regressions.
Added 3 months ago
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Cluster Site Reliability Engineer
iFrame
Toronto, ON
- Full-time
Apply: Cluster Site Reliability Engineer General application
Added 2 months ago
A
Associate Software Engineer (Winter 2027)
AltaML
Toronto, ON
- Full-time
As an Associate Software Engineer you’ll play a hands-on role in building and scaling our agentic platform - an intelligent, adaptive system designed to automate workflows and power smarter…
Added 1 month ago
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Staff Software Engineer - Networking & DNS Infrastructure
BlueCat
Toronto, ON
- Full-time
We're looking for a systems engineer to build and operate high-throughput, low-latency network infrastructure written in Rust. You'll work on the core data plane of a production DNS…
Added 2 months ago
FI
Principal Software Engineer - Zynque
Fulfillment IQ
Toronto, ON
- Full-time
Job Title: Principal Software Engineer - Zynque
Added 1 month ago
Software Engineer, Intern (Summer 2027) - TOR
DoorDash Canada
Toronto, ON
We believe interns are essential to our mission of attracting and retaining top talent. During our 12-week Software Engineer internship, interns are completely immersed in their teams and…
Added 1 month ago
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Senior Software Engineer, Applied AI (Toronto)
Justworks
Toronto, ON
- $188,000 to $242,000 CAD / year
- Full-time
We are seeking a Senior Software Engineer with a strong passion for building AI-native systems in a product environment. The ideal candidate will be able to take ownership of large segments…
Added 1 month ago
GM
Staff Networking Software Engineer
General Motors
Markham, ON
- Full-time
Our vehicle communication team is hiring a software engineer to design and develop software in our Linux-based networking system. You'll be part of a team working to ship the world’s most…
Added 1 month ago
Senior Staff Electro-Optic Systems Architect
Lightmatter
Toronto, ON
Added 1 month ago
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Senior Staff Electro-Optic Systems Architect
Lightmatter
Toronto, ON
- Full-time
Added 1 month ago
Software Engineer II
Fivetran
Toronto, ON
We’re seeking an enthusiastic Software Engineer to join our fast-growing data company. As a part of the databases team, you will help drive performance improvements, improve…
Added 1 month ago
B
Staff/Principal Software Engineer (Strong AI/ML and Java exp)
Bevertec
Toronto, ON
- Contract
Job Role: Staff/Principal Software Engineer (Strong AI/ML and Java exp)
Added 1 month ago
X
Cloud Engineer
Xanadu
Toronto, ON
- Full-time
As a Cloud Engineer, you will contribute to the cloud platform and the infrastructure which hosts all our internal projects workloads. You will work on a team to support and maintain…
Added 1 month ago
SI
Senior Java Software Engineer
Smart IT Frame LLC
Toronto, ON
- Full-time
Added 1 month ago
JC
Staff Site Reliability Engineer
Johnson Controls
Toronto, ON · Richmond Hill, ON
- Full-time
Must reside in Canada and be legally authorized to work in Canada without sponsorship
Added 1 month ago
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Senior Backend Engineer
CommIT
Toronto, ON
- Full-time
The company is hiring a Senior Backend Engineer to join its Customer Focus Group (CFG) - a technical team that connects engineering with the commercial side of the product.
Added 2 months ago
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Senior Lead Software Engineer (Tax Solution), FinTech (Bangkok based, Relocation provided)
Agoda
Toronto, ON
- Full-time
10+ years of experience in software engineering, architecture, or technology leadership roles, with a strong track record of designing and evolving complex production systems.
Added 2 months ago
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Senior Software Engineer (Trading Technology Software Development)
Pinnacle
Toronto, ON
- Full-time
Job Title: Senior Software Engineer (Trading Technology Software Development)

Lightmatter

Senior Staff Electro-Optic Systems Architect

Toronto, ON, Canada

Full-time

Apply on LinkedIn About employer

Applications open in a new tab.

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.

Apply on LinkedIn About employer

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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Software engineer jobs in Toronto, ON and nearby

IT - Senior Software Engineer

Staff Site Reliability Engineer

Principal Software Engineer, Health Data & Interoperability (Remote)

Senior Software Engineer (Patient)

Software Engineer, Commercial Software

Senior Software Engineer (Provider)

Senior Java Software Engineer

Senior Java Software Engineer

Cluster Site Reliability Engineer

Associate Software Engineer (Winter 2027)

Staff Software Engineer - Networking & DNS Infrastructure

Principal Software Engineer - Zynque

Software Engineer, Intern (Summer 2027) - TOR

Senior Software Engineer, Applied AI (Toronto)

Staff Networking Software Engineer