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Added 23 mins ago
JA
Founding Engineer
June Accounting and Analytics
Montreal, QC
- Full-time
Role Description As a Founding Engineer at June Accounting and Analytics, you will architect, build, and maintain core product features for our forecasting and analytics tools used by…
Added 54 mins ago
Traffic Engineer (East), Pacific Link (Contract)
Trans Mountain
Calgary, AB
Trans Mountain Corporation operates Canada’s only pipeline system transporting oil products to the West Coast. We deliver approximately 890,000 barrels of petroleum products each day…
Added 54 mins ago
Traffic Engineer (West), Pacific Link (Contract)
Trans Mountain
Calgary, AB
Trans Mountain Corporation operates Canada’s only pipeline system transporting oil products to the West Coast. We deliver approximately 890,000 barrels of petroleum products each day…
Added 1 hour ago
ED
Sr Software Developer (Lead) - EN 178
Export Development Canada | Exportation et développement Canada
Vancouver, BC
- $96,557 to $128,743 CAD / year
- Full-time
Software Engineer 18: Salaries typically range from $96,557 to $128,743 annually, based on qualifications and experiences, plus a performance-based incentive
Added 3 hours ago
S
Forward Deployed Solution Engineer – Applied AI FDE
ServiceNow
Montreal, QC
- Full-time
It all started when engineer Fred Luddy wrote code that automated a tedious task for his coworker, Phyllis. She cried tears of joy. That moment inspired Fred to build a company that could…
Added 3 hours ago
PL
Quality Engineer
Polycorp Ltd
Elora, ON
- $70,000 to $80,000 CAD / year
- Full-time
The Quality Engineer is responsible for ensuring the quality and accuracy of products by maintaining the standards of measurement tools, and internal corrective actions leading to process…
Added 3 hours ago
A
Electrical EIT
Actalent
Calgary, AB
- $25 to $28 CAD / hour
- Contract
Create cable schedules and power system designs.
Added 3 hours ago
CI
Lead software engineer
Cogency Inc
Toronto, ON
- From $57 CAD / hour
- Full-time
- On-site
Evaluate the performance and reliability of system designs
Added 3 hours ago
CB
Marine Electricians (Journeyperson Electrician)
Cape Breton Job Board
North Sydney, NS
- Full-time
Reporting to the Chief Electrical Engineer, this position performs preventive maintenance as scheduled and carries out corrective maintenance duties as required. This position also performs…
Added 4 hours ago
GO
Power Engineer
Government of Manitoba
Selkirk, MB
- Full-time
The Department of Public Service Delivery is seeking a Power Engineer to join their operations at the Selkirk Mental Health Centre in Selkirk, MB.
Added 4 hours ago
MC
Mechanical Commissioning Associate
Mission Critical Engineers | Mission Critical Forensics
Regina, SK
- Full-time
…Associate will work alongside the Lead Data Centre Commissioning Engineer & Project Manager and the commissioning team during system startup, test preparation, functional testing,…
Added 4 hours ago
GF
Electronics Engineer, Diagnostics and Data Acquisition
General Fusion
Vancouver, BC
- Full-time
General Fusion is seeking a Senior Electronics Engineer to join our Controls & Electronics team. This team designs and supports the data acquisition, instrumentation, and control…
Added 4 hours ago
MC
Mechanical Commissioning Associate
Mission Critical Engineers | Mission Critical Forensics
Regina, SK
- Full-time
…Associate will work alongside the Lead Data Centre Commissioning Engineer & Project Manager and the commissioning team during system startup, test preparation, functional testing,…
Added 4 hours ago
KA
Aircraft Maintenance Engineer - Structures Licensed
KF Aerospace
Kelowna, BC
- $38.03 to $45.65 CAD / hour
- Full-time
Understanding and applying the Risk Management System
Added 4 hours ago
W
Concepteur électrique / Electrical Designer
Wabtec
Montreal, QC
- Full-time
Added 5 hours ago
X
Computer network technician
Xiingo
Mississauga, ON
- From $41 CAD / hour
- Full-time
- On-site
Evaluate and install computer hardware, networking software and operating system software
Added 5 hours ago
C
Project Coordinator - Candidate Pool
CIMA+
Calgary, AB
- $92,800 to $127,600 CAD / year
- Full-time
…what’s expected of us to meet the challenges of tomorrow and engineer a better…
Added 5 hours ago
C
Project Manager - Candidate Pool
CIMA+
Calgary, AB
- $110,480 to $151,910 CAD / year
- Full-time
…what’s expected of us to meet the challenges of tomorrow and engineer a better…
Added 5 hours ago
HR
Software Analyst
Hitachi Rail
Toronto, ON
- Full-time
Collaborate with Systems Engineering teams to ensure system-software consistency, proper component refinement, and compliance with software architecture.
Added 5 hours ago
A
Software Dev Engineer, AFFS - ARS (Amortization Runtime Subledger)
Amazon
Vancouver, BC
- Full-time
As a Software Development Engineer, you'll design massively scalable distributed systems handling complex financial workflows. You'll work on services requiring low latency, high…
Added 5 hours ago
FH
Engineer MW5/SE4
Fraser Health Authority
Chilliwack, BC
- $37.72 CAD / hour
- Other
We currently have an exciting opportunity for a Casual Engineer MW5/SE4 at Chilliwack General hospital located in Chilliwack, British Columbia.
Added 5 hours ago
I
Senior Mechanical Engineer (Semiconductor Packaging)
Inpho
Ottawa, ON · Kanata, ON
- Full-time
We are looking for a Senior Mechanical Engineer who thrives at the intersection of precision design and robust process development to help us bring our optical subassemblies to the global…
Added 5 hours ago
O(
Quality Engineer - 6-month contract
OTIP (Ontario Teachers Insurance Plan)
Waterloo, ON
- Contract
Reporting to the Senior Manager, DevOps & System Integration, the Quality Engineer is responsible for creating, reviewing, executing, and documenting the tests necessary to ensure that…
Added 5 hours ago
GD
Software Test Specialist/Engineer
General Dynamics Land Systems–Canada
London, ON
- Full-time
…and how the software test plans are integrated with overall system verification…
Added 6 hours ago
SE
Lead RTL Engineer
Schweitzer Engineering Laboratories (SEL)
Burnaby, BC · Canada - Burnaby
- $105,600 to $158,400 CAD / year
- Full-time
Schweitzer Engineering Laboratories (SEL) is hiring a Lead Engineer with a focus in VHDL Register-Transfer Level (RTL) Digital Logic design for our R&D Communications product group. In this…

Lightmatter

Sr SDET– Firmware Automation

Toronto, ON, Canada

Full-time

Apply About employer

Applications open in a new tab.

Job details

Job type: Full-time
Apply by: Apr 6, 2027
Posting language: English
Posted: Oct 8, 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!

At Lightmatter, an SDET is a software engineer first , not a QA coordinator or manual tester. You'll design and build the frameworks, harnesses, and hardware-in-the-loop infrastructure that let firmware engineers test their own code continuously on real photonic hardware. You'll sit with the firmware team, spend time at the bench with oscilloscopes, debuggers, and optical instruments, and serve as the bridge between firmware and broader software and systems organizations.

Responsibilities

Own the architecture and roadmap of the firmware test automation framework across products, targets, sites, and teams
Design and build stable automation for new firmware features and hardware, held to production-quality engineering standards
Build and operate HIL test infrastructure: bench and rack fixtures, device farms, power/reset control, instrument integration, and CI orchestration on real photonic hardware
Define test strategy, plans, and reporting; lead test plan reviews across teams
Integrate firmware testing into CI/CD so every change is built, flashed, exercised on hardware, and reported automatically
Own framework reliability and flaky test metrics as first-class engineering problems
Build results, telemetry, and log pipelines for triage, trend analysis, and release decisions
Debug failures across the full stack (firmware, board, instrument, fixture, test code) and partner with engineers to resolve them
Participate in firmware design reviews to influence testability and diagnostics early
Integrate with data center management interfaces (CMIS, OpenBMC, DMTF); debug embedded systems using GDB, JTAG, and logic analyzers
Define diagnostics and monitoring architecture for photonic transceivers
Mentor engineers on test architecture and write clear documentation for non-specialists

Qualifications

8+ years of professional software development, primarily on embedded products, including designing test frameworks and infrastructure
BS or MS in Computer Science, Electrical Engineering, or equivalent experience
At least one automation framework or HIL system architected and built from scratch, adopted by other engineers, and in daily use and the ability to discuss its design, tradeoffs, and lessons learned
Strong Python: fixture and abstraction layers, hardware drivers, plugin/configuration architectures
Working fluency in embedded C/C++: able to read firmware drivers or state machines and write tests for edge cases
Experience owning CI/CD pipelines running tests on physical hardware (GitHub Actions, GitLab CI, Jenkins, or equivalent), including runner health, hardware allocation, and recovery
Track record of delivering robust automation under fast-changing requirements and hardware

Preferred Qualifications

PhD, or MS with 8+ years in embedded test automation or firmware development
Experience testing firmware for optical transceivers, photonic systems, or precision analog/mixed-signal hardware
Familiarity with CMIS, OpenBMC, or DMTF/Redfish
Experience with Pytest ecosystem and test tooling for Zephyr or FreeRTOS (Twister, ztest, Renode, QEMU, or similar)
Experience with optical and electrical test and measurement equipment
Startup experience
Thoughtful use of AI-assisted tools in test generation, triage, or analytics

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 About employer

More about this job

Responsibilities

Architect and maintain firmware test automation frameworks and hardware-in-the-loop infrastructure, integrating physical hardware testing into CI/CD and building reliable results and telemetry pipelines. Debug issues across firmware, boards, instruments, fixtures, and test code; shape testability and diagnostics through design reviews; and mentor engineers.

Requirements

Requires 8+ years of professional software development, primarily on embedded products, a relevant bachelor's or master's degree or equivalent experience, and experience building an automation framework or HIL system adopted for daily use. Candidates should have strong Python, working fluency in embedded C/C++, and experience operating CI/CD pipelines that test physical hardware.

Skills

Firmware Test Automation
Python
Embedded C/C++
Hardware-in-the-Loop Testing
Test Framework Architecture
CI/CD
Pytest
Embedded Systems Debugging
GDB
JTAG
Logic Analyzers
Hardware Drivers
Optical and Electrical Test Equipment
CMIS
OpenBMC
DMTF/Redfish

Benefits

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

Visa sponsorship

Not detected in the job text

Keywords

Firmware
Test Automation
Hardware-in-the-Loop
Python
Embedded C/C++
CI/CD
Pytest
GitHub Actions
GitLab CI
Jenkins
CMIS
OpenBMC
DMTF/Redfish
GDB
JTAG
Logic Analyzers
Zephyr
FreeRTOS
Twister
ztest
Renode
QEMU
Optical Transceivers
Photonic Systems
Mixed-Signal Hardware
Oscilloscopes
Hardware Drivers
Test Framework Architecture
Telemetry
AI-Assisted Test Generation

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