1,830,005open jobs
105,386companies
276,016added this week
Browse all
Salary
≈ $163k – $316k per year (Estimated)
Location
Hybrid (Toronto, Canada)
Seniority
Senior · 6+ years exp

Confirmed on the employer's own hiring board on Oct 18, 2026. First seen by Alion on Mar 24, 2025. Lightmatter scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Lightmatter is a photonic computing and interconnect company headquartered in Mountain View, California, and founded in 2017. The company develops photonic chips, light engines, and interconnect platforms designed to scale AI supercomputers by replacing traditional electrical I/O with optical technology. It operates as a venture-backed firm collaborating with major semiconductor manufacturers and standards bodies to provide high-bandwidth, energy-efficient infrastructure for large-scale AI training and inference.
Backed by GV, Spark Capital, Matrix

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

Join a cutting-edge team at the forefront of silicon photonics and high-speed transceiver design! As a member of the analog team, you’ll collaborate with our architects and engineers to develop innovative high speed analog transceiver solutions for next-generation optical and wireline communication systems.

* We are currently hiring for multiple levels for this role. Your level and compensation will be determined by your experience, education, and location.

Responsibilities

  • Support micro-architecture development with chip architects by conducting feasibility studies
  • Collaborate with members of our design engineering teams (system, digital, analog, photonics) to define electrical requirements
  • Design analog/mixed-signal blocks with a focus on transceivers and broadband circuits interfacing with silicon photonics elements
  • Document design simulations and verifications towards formal design reviews
  • Drive block-level floorplan, mask design views, and their reviews
  • Run post-layout and mixed-signal top-level simulations to validate integration
  • Define production and bench-level test plans
  • Validate the performance of the circuits in the lab

Qualifications

  • MS with 6+ years of industry experience, OR Ph.D. with 3+ years of industry experience with a focus on optical or wireline transceiver design
  • Experience designing in either GHz-speed RF or GHz-speed broadband analog design
  • Experience with Tx/Rx equalization techniques and circuits
  • Familiarity with SERDES architectures and implementations
  • Solid understanding of CMOS device characteristics, noise, mismatch, linearity, and design trade-offs 
  • Experience with Cadence Design Environment
  • Ability to work collaboratively with people across multiple functional areas

Preferred Qualifications

  • Experience designing Analog-Front-End blocks for transceiver circuits such as trans-impedance amplifiers (TIA) and Tx Driver
  • Knowledge of 3D Electro-Magnetic (EM) simulation tools is a plus
  • Experience with testing and validating high-speed analog/mixed-signal circuits
  • Experience interfacing with silicon photonic modulators (MZM, Ring) is a plus
  • Successful track record in delivering analog/mixed-signal IPs with 1st-time success while meeting tight schedules

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.

$135,000—$180,000 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. 

Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
1,830,005 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

DevOps
Similar stack
Same company
Toronto
$78k – $86k per year • In office • Toronto
SQL
Databases
Databricks
DevOps
Azure
Apply
≈ $67k – $141k per year (Estimated) • In office • Mississauga
Python
DevOps
CI/CD
GitHub
Apply
≈ $56k – $119k per year (Estimated) • In office • Airdrie
Python
PowerShell
DevOps
Azure DevOps
Azure
CI/CD
Kubernetes
Management
Agile
Apply
Hybrid • Hamilton
Apply
In office • Full-Time • Dhaka
Apply
≈ $122k – $228k per year (Estimated) • In office • Full-Time • Bachelor's Degree • London
Python
Java
SQL
C++
C++
TensorFlow C++
PyTorch C++
AI/ML
TensorFlow
PyTorch
LLM
Machine Learning
DevOps
HPC
Apply
≈ $49k – $132k per year (Estimated) • In office • Master's Degree • Madrid
DevOps
GitHub
HPC
Apply
≈ $22k – $51k per year (Estimated) • In office • Full-Time • Almaty
DevOps
GCP
VMWare
Azure
AWS
Hyper-V
HPC
VLAN
Apply
$120k – $170k per year • In office • Atlanta
JavaScript
C++
AI/ML
CUDA Toolkit
LLM
CUDA
Frontend
WebGPU
DevOps
HPC
Game Dev
GLSL
Apply
$120k – $170k per year • In office • Los Angeles
JavaScript
C++
AI/ML
CUDA Toolkit
LLM
CUDA
Frontend
WebGPU
DevOps
HPC
Game Dev
GLSL
Apply
$212k – $326k per year • Equity • Hybrid • 12+ years exp • Master's Degree • Boston • Mountain View
Python
Verilog
MATLAB
DevOps
HPC
Chips/EDA
Ansys HFSS
Keysight ADS
Apply
Photonics Architect 9 days ago
≈ $189k – $366k per year (Estimated) • Equity • Hybrid • PhD • Toronto
Verilog
DevOps
HPC
Apply
$149k – $217k per year • Equity • Hybrid • PhD • Boston • Mountain View
Verilog
DevOps
HPC
Chips/EDA
Cadence Virtuoso
Cadence Spectre
Apply
≈ $190k – $368k per year (Estimated) • Equity • Hybrid • PhD • Toronto
Verilog
DevOps
HPC
Chips/EDA
Cadence Virtuoso
Cadence Spectre
Apply
≈ $192k – $372k per year (Estimated) • Equity • Hybrid • 8+ years exp • PhD • Toronto
DevOps
HPC
Apply
$78k – $86k per year • In office • Toronto
SQL
Databases
Databricks
DevOps
Azure
Apply
$60k – $95k per year • Remote (Canada) • Full-Time • 5+ years exp • Bachelor's Degree • Toronto
Apex
Apex
MuleSoft
Visualforce
DevOps
Rest API
Incident Management
SLI/SLO/SLA
SOAP
Analytics
Informatica
Management
ServiceNow
Agile
ITIL
ITSM
Apply
Field Service Manager 6 hours ago
≈ $34k – $70k per year (Estimated) • In office • Bachelor's Degree • Toronto
Apply
≈ $94k – $172k per year (Estimated) • In office • Full-Time • Toronto
Python
SQL
AI/ML
SFT
Apply
QA Analyst 6 hours ago
$55k – $62k per year • In office • Toronto
Apply
See all jobs
This is one of many
1,830,005 more open roles from verified company boards, updated every day.