Sr SDET – Firmware Automation

Toronto, Ontario

On-site

Full-time

No salary posted2 days ago

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Employment type: Full-time · On-site
Posted: October 10, 2026
Province: Ontario (ON)

Hiring confidence: Sparse posting · 22/100

This posting is missing most of the signals we look for, or shows patterns common to listings that are not actively being filled. Check with the employer before applying. How this is scored

Job Overview

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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 dat…

This role is based in Ontario. Lightmatter is hiring for this full-time position through Jobily, where you can check how well your resume matches the posting before you apply.

Market context

About this role in Ontario

Average salary for Sr SDET – Firmware Automation in Ontario

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Typical qualifications for Canadian employers

Senior-level SDET experience
Strong firmware automation background
Experience with data center infrastructure or photonics systems preferred
Proficiency in multiple programming languages
Experience developing test frameworks and automation infrastructure

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What you'll do

Design and develop firmware automation frameworks for Passage™ photonics engine
Create automated test suites for data center infrastructure
Develop testing strategies for extreme-scale AI and HPC systems
Lead firmware test automation initiatives
Collaborate with hardware and firmware engineering teams
Ensure quality and reliability of photonics-based systems

What you'll need

Senior-level SDET experience
Strong firmware automation background
Experience with data center infrastructure or photonics systems preferred
Proficiency in multiple programming languages
Experience developing test frameworks and automation infrastructure
Understanding of hardware-software integration testing