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Silicon Roles

Principal Digital (mixed-signal) Architect

LightmatterToronto, ON$191,000+Analog & Mixed-Signal
Apply on Lightmatter’s site →
The published floor of $191,000 is 3% above the Analog & Mixed-Signal median of $185,000. First seen on this site 2026-08-10.
Posted 2026-08-05 · read from greenhouse

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! We are hiring a Principal Digital Architect for high-speed photonic (mixed-signal) communication chips. The selected candidate will partner with external facing teams at Lightmatter and the internal engineering team to deliver groundbreaking products to the market. As an architect, you will provide detailed technical documents that describe what needs to be built to the engineering team. This will require a solid understanding of process technology, state of the art in chip design, and clear communication skills. You will represent the company externally at technical conferences as an example of our technical leadership. In this role, you will be defining the architecture of the digital circuits that enable a ground-breaking photonic-based communication fabric.