Laser Firmware Intern - Summer 2027

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! About this job Are you ready to do meaningful internship work on technology that is changing how AI systems are built? This team builds the firmware that controls the lasers inside our photonic hardware. This summer you will work on two projects: hardware-in-the-loop (HIL) testing that runs our firmware against real lasers, and research into deploying machine learning on embedded targets to control them. You will write code, run experiments on live hardware, and share your results with the engineers who depend on them. Responsibilities: Build and extend hardware-in-the-loop test setups that run laser firmware against real hardware. Write automated test cases that characterize laser behavior and catch firmware regressions.