Machine Learning Infrastructure Researcher

Lightmatter·Toronto, ON·Posted 10 March 2026

Apply with a tailored CV View on Lightmatter's site

About the role

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! Lightmatter is seeking a Principal of Machine Learning Infrastructure Researcher to join our Machine Learning team. This team is focused on inventing novel hardware systems using Lightmatter technology and modeling the performance of Lightmatter-enabled systems on both training and inference workloads. This is primarily a creative role where you need to think outside the box to…

This is a summary of the advert. The full description and the application are on Lightmatter's careers site.

Apply faster with Prepper

A version of your CV tailored to this Machine Learning Infrastructure Researcher role.
A cover letter written from your CV and this advert.
Prepper can fill in Lightmatter's application form and send it once you approve.
The application saved in your tracker, with reminders to follow up.

Start free

More roles at Lightmatter

Prepper is independent and not affiliated with Lightmatter. Roles are listed from the employer's public careers system and removed when they close.