Engineering

Business Development

Arts and Design

Administrative

Accounting

Product Management

Operations

Sales

Information Technology

Human Resources

Quality Assurance

Program and Project Management

Entrepreneurship

Founder, CEO

Sr. VP Sales & Solution Architecture

Lightmatter Unveils Guide DR: Industry First Liquid-Cooled Laser NIC that Quadruples Rack Density

Lightmatter Names Roy Kim Vice President of Product to Lead Global Deployment of Photonic Interconnects

Lightmatter says latest photonics will slash datacenter fiber bills in half

Silicon as a Platform Market Projected to Reach US$ 103.26 Billion by 2035, Supported by Investment in Photonic Technologies Says Astute Analytica

Staff Embedded Software Engineer, Lasers

Lightmatter is leading the revolution in AI data center infrastructure, enabling the next giant leaps in human progress. The role focuses on defining the control plane architecture for next-generation photonic interconnect products and implementing active laser control and stabilization algorithms, leveraging expertise in embedded systems to deliver products for extreme-scale AI computing clusters.

Embedded Software Engineer, Lasers

Lightmatter is leading the revolution in AI data center infrastructure, enabling significant advancements in human progress. The Embedded Software Engineer, Lasers will focus on host control software for lasers, collaborating with a multidisciplinary team to develop and maintain test infrastructure and embedded host controllers for CMIS-based laser control.

Lightmatter is leading the revolution in AI data center infrastructure, enabling the next giant leaps in human progress. In this role, you'll focus on host control software for lasers and own test infrastructure and embedded host controllers, collaborating with experienced engineers across multiple domains to support laser characterization and integration.

Principal Machine Learning Infrastructure Researcher

Lightmatter is leading the revolution in AI data center infrastructure, enabling the next giant leaps in human progress. They are seeking a Principal Machine Learning Infrastructure Researcher to focus on inventing novel hardware systems and modeling performance of Lightmatter-enabled systems for AI workloads.

Lightmatter is leading the revolution in AI data center infrastructure, and they are seeking a Principal Machine Learning Infrastructure Researcher to join their Machine Learning team. This role focuses on inventing novel hardware systems and modeling the performance of Lightmatter-enabled systems for AI workloads, requiring creativity and collaboration with various teams.

Reliability Test Intern

Lightmatter is leading the revolution in AI data center infrastructure, enabling the next giant leaps in human progress. The company is looking for a Reliability Test Intern for the summer of 2026 to work with the reliability and test team on various projects related to testing reliability and characterization.

Reliability Test, Intern

Staff Embedded Software Engineer

Lightmatter is leading the revolution in AI data center infrastructure, enabling significant advancements in computing. The company is seeking a talented Staff Embedded Software Engineer to develop and extend device software and firmware for their innovative photonic AI processors and interconnects, collaborating with multidisciplinary teams to define architecture and functionality.

Staff Software Engineer- Hardware Test Infrastructure

Lightmatter is leading the revolution in AI data center infrastructure, and they are seeking a Staff Software Engineer to lead the development of a comprehensive High Temperature Operating Life (HTOL) Test Software system. The role involves designing, implementing, and maintaining a scalable multi-chassis testing platform for automated stress and performance testing.

Lightmatter is leading the revolution in AI data center infrastructure, enabling significant advancements in human progress. They are seeking a talented software engineer to develop and extend the device software and firmware stack for their Photonic Compute and interconnect products, collaborating with various teams to implement essential functionalities.

Principal Engineering Product Manager, Optics/Photonics

Lightmatter is leading the revolution in AI data center infrastructure, enabling significant advancements in human progress. The Principal Engineering Product Manager for Optics/Photonics will lead product definition and rollout, working with various teams to drive the adoption of photonics-enabled solutions with top semiconductor and cloud vendors.