Workplace
hybrid
Employment
Internship
Published
Aug 25, 2026
Closes
No date supplied
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 an experienced Senior Account Manager to take ownership of several major customer accounts. In this highly visible role, you will be the face and voice of Lightmatter, driving the entire sales cycle from initial engagement through deal closure. You will also be the voice of the customer to the Lightmatter leadership team. The role requires the development of a deep understanding of customer needs and the ability to position Lightmatter's solutions to meet them.
Responsibilities
• Develop and execute comprehensive sales strategies that meet target revenue numbers and expands Lightmatter’s footprint within key accounts.
• Build and maintain trusted-advisor relationships with influencers and decision-makers from C-suite executives to individual engineers.
• Apply a deep understanding of customer pain points and business objectives to clearly communicate the value of Lightmatter's solutions and work with the Lightmatter product team to deliver them.
• Be the voice of the customer with the internal teams — including engineering, marketin
Requirements
Department: Sales