Workplace
hybrid
Employment
Internship
Published
Aug 11, 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!
In this role you will be responsible for designing, executing, and analyzing reliability tests to verify product performance, durability, and compliance with standards. You will enable our products to meet or exceed reliability requirements throughout their lifecycle by developing robust test protocols, analyzing failures, and working with cross-functional teams to drive improvements in design and manufacturing processes.
Responsibilities
• Develop reliability test plans based on product requirements, industry standards, and customer expectations.
• Execute reliability qualification testing for our highly integrated photonics-based AI platform and our photonics chiplet communication fabric products.
• Conduct Failure Modes and Effects Analysis (FMEA) to identify and mitigate potential reliability risks in device design and manufacturing.
• Perform detailed root cause analysis of device failures, and collaborate with cross-functional teams to resolve reliability issues, refine product designs, and improve process robustness.
• Establish int
Requirements
Department: Product Engineering