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Added 12 mins 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 12 mins 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 12 mins 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 12 mins ago
W
Concepteur électrique / Electrical Designer
Wabtec
Montreal, QC
- Full-time
Added 12 mins ago
E
Senior Execution Engineer
Enbridge
Regina, SK · Sherwood Park, AB · Calgary, AB
- Full-time
…innovation, and asset reliability. We are seeking a Senior Execution Engineer to join our…
Added 27 mins ago
G
Associate, Client Engineering (Mexico City)
Glia
Vancouver, BC
- Full-time
Glia's Banking AI Operating System is a central intelligence layer on top of existing tech stacks, activating an AI workforce of specialized agents that draw from banking data, interaction…
Added 30 mins 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 42 mins 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 42 mins 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 42 mins 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 42 mins ago
TC
Junior Support Engineer
TDSB Community Services
Mississauga, ON
- Full-time
Monitor customers’ IT environments using RMM and other Consoles. Respond quickly and effectively to requests received through Alerts and Ticketing system.
Added 42 mins 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 56 mins ago
KG
DevOps Platform Engineer | AI & LLMOps Infrastructure
K&K Global Talent Solutions INC.
ON · Ontario, Canada
- Full-time
Position: DevOps Platform Engineer | AI & LLMOps Infrastructure
Added 56 mins 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 56 mins 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 1 hour ago
PE
PV Designer
Polaron Energy
Toronto, ON · North York, ON
- Volunteer
Polaron Energy Corp. is seeking a motivated and detail-oriented Solar PV System Designer to join the Commercial department, supporting the design, planning, coordination, and delivery of…
Added 1 hour 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 1 hour 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 1 hour ago
Senior Software Engineer - Mobile (React Native/iOS/Android)
BitGo
Toronto, ON
…has focused on accelerating the transition of the financial system to a digital asset economy. BitGo maintains a global presence and multiple regulated entities, including BitGo Bank &…
Added 1 hour ago
Senior Software Engineer - Mobile Backend
BitGo
Toronto, ON
…has focused on accelerating the transition of the financial system to a digital asset economy. BitGo maintains a global presence and multiple regulated entities, including BitGo Bank &…
Added 1 hour ago
Pipeline Integrity Engineer, Risk
NDT Global Group
Calgary, AB
The goal of the Pipeline Integrity Engineer (PIE), Risk is to be responsible for performing data reviews, risk assessments, supporting the development and maintenance of risk algorithms,…
Added 2 hours ago
HT
Product Development Engineer
Husky Technologies
Bolton, ON
- Full-time
Our Development Engineering team is looking to hire an experienced Product Development Engineer. The successful candidate will lead the technical development of packaging products working…
Added 2 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…
Added 2 hours ago
TW
Repair Solutions Engineer II
T.D. Williamson
Edmonton, AB · Canada Edmonton
- Full-time
…individuals from other engineering specialties for finished system or…
Added 2 hours ago
C
Software Development Engineer in Test
CIBC
Toronto, ON
- Full-time
…provide clients with quality products that meet business and system…

Lightmatter

Sr SDET– Firmware Automation

Toronto, ON, Canada

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Job details

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.

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More about this job

Responsibilities

You will design and build firmware test automation frameworks and hardware-in-the-loop infrastructure to ensure continuous testing on real photonic hardware. You will also integrate these tests into CI/CD pipelines and collaborate with firmware engineers to debug failures across the full stack.

Requirements

Candidates must have 8+ years of professional software development experience, primarily in embedded systems, with a strong background in Python and C/C++. A bachelor's or master's degree in Computer Science, Electrical Engineering, or equivalent experience is required.

Skills

Firmware Automation
Python
Embedded C/C++
Hardware-in-the-loop (HIL)
CI/CD
Test Architecture
Embedded Systems
Photonic Systems
CMIS
OpenBMC
DMTF
GDB
JTAG
Logic Analyzers
Pytest
Zephyr

Benefits

Comprehensive Health Care Plan
Life Insurance
Generous Time Off
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

Firmware
Automation
Photonics
Embedded Systems
Python
C++
C
HIL
CI/CD
GitHub Actions
GitLab CI
Jenkins
CMIS
OpenBMC
DMTF
Redfish
Pytest
Zephyr
FreeRTOS
GDB
JTAG
Logic Analyzers
Transceivers
Hardware-in-the-loop
Telemetry
Debugging
Test Framework
Data Center
AI Infrastructure
Startup

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