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Added 2 months ago
SI
Automation Project Engineer Manager
Systemex Industries Conseils
Laval, QC
- Full-time
Our Multidisciplinary Team Combines Expertise In Automation, Robotics, Electrical Engineering, Mechanical Engineering, Software Development, And Systems Integration To Deliver Turnkey…
Added 2 months ago
Staff/Sr Staff Electro-Optic Link Codesign Engineer
Lightmatter
Toronto, ON
We are seeking a Sr. Staff Engineer, Photonic Link Co-Design to join our Laser Systems Architecture & Engineering team. This is one of the most technically demanding roles at Lightmatter:…
Added 2 months ago
H
Ingénieur(e) Full Stack Senior, HTS Assist// Senior Full Stack Engineer (Realtime & Voice) Customer Experience Platform
Hopper
Remote, Canada
- Full-time
- Remote
…notamment les garde-fous, le filtrage de contenu et les points d'intégration de la rédaction des renseignements…
Added 2 months ago
H
Senior Full Stack Engineer (Realtime & Voice) Customer Experience Platform
Hopper
Remote, Canada
- $200,000 to $250,000 CAD / year
- Full-time
- Remote
6+ years of software engineering experience, with senior-level ownership of production systems and genuine full-stack range
Added 2 months ago
UT
Senior Software Engineer, QA
Unity Technologies
Montreal, QC · CAN-Montreal
- Full-time
We are seeking a Senior Quality Engineer to join a newly established engineering team within the Unity Platforms Organization. This team is responsible for delivering Unity platform support…
Added 2 months ago
K
Senior SR&ED Consultant (Software Engineer)
KPMG
Vancouver, BC
- Full-time
As software, AI and technology organizations continue to invest in increasingly complex research and development, our team is seeking a Senior Consultant with a strong software engineering…
Added 2 months ago
PA
Lead, Systems Design
Porter Airlines Inc.
Toronto, ON
- Full-time
8+ years of experience in system design or software engineering or systems integration, including 2+ years in a technical leadership or senior system designer role
Added 2 months ago
VE
Microelectronics Ultrapure Water (UPW) Senior Process Engineer
Veolia Environnement SA
Oakville, ON
- Full-time
Owning the system integration across multiple unit operations, and/or work in close collaboration with a dedicated system integrator on complex flowsheets
Added 2 months ago
Senior Release Engineer
Questrade Financial Group
Toronto, ON
We’re looking for our next Senior Release Engineer. Could It Be You?
Added 2 months ago
Senior Software Engineer, Data - Mapping
Lyft
Toronto, ON
As a Senior Software Engineer, Data on the Mapping team, you will collaborate with our world-class team of engineers, product managers, and scientists to grow and improve the quality of…
Added 2 months ago
PF
Ingénieur·e senior en implantation | Senior Implementation Engineer
Power Factors
Remote, Canada
- Remote
…équipe mondiale des Services professionnels, responsable de l’intégration d’actifs d’énergie renouvelable (solaire photovoltaïque, éolien et stockage par batteries) à notre plateforme Unity…
Added 2 months ago
U
Senior Software Engineer - Systems
UrbanLogiq
Vancouver, BC
- $120,000 to $160,000 CAD / year
- Full-time
We are hiring a Senior Software Engineer to develop and extend the systems layer of our platform: data pipelines, storage, and query infrastructure. You will report to our Director of…
Added 2 months ago
AI
EMC/EMI Engineer
Aversan Inc.
Mississauga, ON
- $120,000 to $140,000 CAD / year
- Full-time
…delivers leading-edge and reliable safety-critical electronics and software systems to the aerospace, defence, and space…
Added 2 months ago
TM
Software Engineer
The MRG Group
Toronto, ON
- $85,000 to $130,000 CAD / year
- Full-time
We’re hiring software engineers at multiple levels (Intermediate & Senior) to help shape and scale the systems behind AdmitONE, our multi-product ticketing platform.
Added 2 months ago
C
Data Center Provisioning Engineer
Cerebras
Toronto, ON
- Full-time
The Data Center Provisioning Engineer will be responsible for provisioning, commissioning, and validating network infrastructure, servers, and related systems across large-scale data center…
Added 2 months ago
KC
AI/ML Engineer - Agentic AI Systems
Kaseya Careers
Toronto, ON
- $160,000 to $240,000 CAD / year
…orchestration, behavioral anomaly detection, and production software engineering. You’ll build AI systems that interpret operational signals, coordinate actions across vendor platforms, and…
Added 2 months ago
MS
R&D Electrical Engineer (On-Site)
Myant Shared Service Corp.
Mississauga, ON
- Full-time
Myant Health is seeking an R&D Electrical Engineer to help design and develop the next generation of connected, textile-enabled medical and health technologies. You will own PCB and analog…
Added 2 months ago
H
Satellite Bus Flight Software Systems Engineer for Fastwater Staffing
HIKINEX
Montreal, QC
- Contract
Our client is seeking a Satellite Bus Flight Software System Engineer to lead or support the system level definition, architecture, integration, verification, and operational readiness of…
Added 2 months ago
H
Satellite Bus Flight Software Systems Engineer | Remote Opportunity | Fastwater Staffing
HIKINEX
Remote, Canada
- Contract
- Remote
We are seeking an experienced Satellite Bus Flight Software Systems Engineer to lead and support the system-level definition, architecture, integration, verification, and operational…
Added 2 months ago
PC
Senior Associate SIEM Implementation
Pwc Canada
Toronto, ON · Ottawa, Ontario · Vancouver, British Columbia · Montreal, Quebec · Calgary, Alberta
- Full-time
…strategies. They work to identify vulnerabilities, develop secure systems, and provide proactive solutions to safeguard sensitive…
Added 2 months ago
JS
Senior Software Engineer (AI Integration & Modernization)
Jonas Software
Markham, ON · Canada - Markham - Ontario
- Full-time
We are hiring a Senior Software Engineer to own the design and delivery of production AI capabilities across a broad portfolio of software businesses. You will work directly with product…
Added 2 months ago
Z
Associate LLM Engineer (Forward Deployment)
ZS
Toronto, ON
- Full-time
We are seeking a highly skilled LLM Engineer with 1-4 years of experience in software development and 1-2 years in LLM solution development,. The ideal candidate will have strong experience…
Added 2 months ago
A
Software Development Engineer, Amazon Customer Service
Amazon
Toronto, ON
- Full-time
…experiences to millions of customers worldwide, and we're seeking a Software Development Engineer to help build the next generation of intelligent solutions. In this role, you'll design and…
Added 2 months ago
B
Principal Architect, AI Platform
BMO
Toronto, ON · BMOPLACE
- Full-time
Bachelor's degree in Computer Science, Software Engineering, or a related technical discipline (Master's preferred).
Added 2 months ago
Lead, Robotics Software Engineer
Locus Robotics
North Vancouver, BC
Lead the integration of NeuraGrasp technology into robotic products, prototypes, and testing environments, ensuring reliable interaction between software, hardware, and perception systems.

Lightmatter

Staff/Sr Staff Electro-Optic Link Codesign Engineer

Toronto, ON, Canada

$180,000 - $260,000 USD

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Job details

Pay: $180,000 - $260,000 USD
Posting language: English
Posted: Sep 3, 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 seeking a Sr. Staff Engineer, Photonic Link Co-Design to join our Laser Systems Architecture & Engineering team. This is one of the most technically demanding roles at Lightmatter: you will own the end-to-end simulation, co-design, and laboratory verification of photonic-electronic links in Passage™ - from photonic device modeling through to full transceiver channel characterization in silicon.

You will build and maintain the high-fidelity simulation infrastructure that links optical device performance to system-level BER and link margin, drive co-design between photonic and analog circuit teams, and close the loop between simulation and lab measurement on every tape-out. This role sits at the center of how Lightmatter ensures Passage links meet performance at every process corner - and is the technical anchor for photonic-electronic integration quality.

The right candidate is equally fluent in photonic simulation environments and at a high-speed electro-optic lab bench, and has the seniority to drive architecture decisions with data.

Responsibilities

Develop, own, and continuously improve electro-optic link simulation models covering photonic device, propagation, and channel BER - from electron to photon to electron.
Build multi-physics models that combine optical propagation (VPI Photonics, Lumerical INTERCONNECT / FDTD, sax), analog circuit behavior (Cadence Virtuoso / Spectre, Verilog-A)) into a coherent link analysis framework.
Execute comprehensive corner analysis, Monte Carlo variation sweeps, and process-voltage-temperature (PVT) studies to bound link margin; generate actionable specification tightening recommendations for device and circuit teams.

Work closely with analog circuit designers to co-optimize transmitter driver and receiver front-end for the photonic device interface; drive joint simulation across the optical-electrical boundary.
Contribute to photonic link budgets end-to-end: optical power, modulation efficiency, receiver sensitivity, noise floor, and SNR/OSNR margins.

Contribute to simulation-to-silicon closure methodology for Passage optical links; author test protocols, define measurement sequences, and iterate link models against measured data across process splits and device corners.
Identify and diagnose root causes of link performance gaps - distinguishing photonic, electrical, and integration origins - and drive corrective design actions.

Author and review photonic link architectural specifications, co-design interface requirements, and design-entry criteria for photonic and circuit teams.
Contribute to Passage product-level link planning: propose photonic and electronic co-design opportunities to improve link margin, power efficiency, or yield.

Requirements:

PhD in Electrical Engineering, Applied Physics, Physics, or a closely related photonics/optics discipline and 5+ years of experience; or MS + 8 years of directly relevant industry experience at a photonic IC, transceiver, or optical interconnect company.
Deep expertise in photonic device physics and system-level optical link design: silicon photonic modulators, Ge photodetectors, passive WDM components, optical amplifiers, and coherent or intensity-modulated link topologies.
Hands-on proficiency with photonic simulation: VPI Photonics, Lumerical FDTD / INTERCONNECT, or equivalent optical propagation and circuit co-simulation tools.
Experience with analog and mixed-signal simulation: Cadence Virtuoso / Spectre, Verilog-A behavioral modeling, or Keysight ADS for electrical-optical co-simulation.
Demonstrated experience developing and executing optical link budgets, corner analyses, and simulation-to-measurement closure workflows.
Demonstrated high-speed lab skills: vector network analyzers (VNA) / S-parameter characterization, optical spectrum analyzers, high-bandwidth real-time oscilloscopes, BER test sets, optical modulation analyzers (OMA), and optical power meters.
Proficiency in Python for simulation scripting, measurement automation, and statistical post-processing.
Excellent written and verbal communication; able to drive architecture and specification discussions with device and circuit teams.
Familiarity with SERDES architecture: equalization topologies (FFE, DFE, CTLE), CDR, and mixed-signal PHY co-design for high-speed interfaces.

Preferred Qualifications

Silicon photonics tape-out and post-silicon characterization experience; familiarity with PDK-level device models and extracted simulation vs. measurement correlation.
Exposure to co-packaged optics (CPO), near-package optics (NPO), or optical I/O chiplet integration challenges.
Signal processing knowledge: DSP for optical communications, forward error correction (FEC), or PAM-4 / NRZ / coherent modulation format trade-offs and simulation.
Experience with Monte Carlo and statistical design methodologies in the context of photonic-electronic system co-design.

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.

$180,000 - $260,000 USD

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 engineer will own the end-to-end simulation, co-design, and laboratory verification of photonic-electronic links within the Passage™ platform. They will drive collaboration between photonic and analog circuit teams to ensure performance across all process corners.

Requirements

Candidates must hold a PhD in a relevant field with 5+ years of experience, or an MS with 8+ years of industry experience. Deep expertise in photonic device physics, high-speed lab characterization, and simulation tools like VPI Photonics and Cadence is required.

Skills

Photonic device physics
System-level optical link design
Silicon photonics
VPI Photonics
Lumerical FDTD
Cadence Virtuoso
Verilog-A
Python
Vector network analyzers
Optical spectrum analyzers
BER test sets
SERDES architecture
Monte Carlo analysis
Signal processing
Optical interconnects
Mixed-signal simulation

Benefits

Comprehensive Health Care Plan
Life Insurance
Generous Time Off
Paid Family Leave
Short Term & Long Term Disability
Training & Development
Commuter Benefits
Equity Grants

Visa sponsorship

Not detected in the job text

Keywords

Photonics
Silicon Photonics
Electro-Optic
Co-design
Transceiver
BER
Link Margin
Cadence Virtuoso
Spectre
Verilog-A
Lumerical
VPI Photonics
Python
VNA
SERDES
DSP
PAM-4
Co-packaged optics
Chiplet
Monte Carlo
PVT
Optical I/O
Data Center
AI Infrastructure
HPC
Passage
Photonic IC
Mixed-signal
PHY
Simulation

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