Jobs
Required skills
Python
AWS
Terraform
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 Role
We are hiring an Intern for our Infrastructure team at Lightmatter! We are a photonic computer company redefining what computers and human beings are capable of by building the engines that will power discoveries and drive progress in a sustainable way. With modern human progress relying heavily on computers, the world has hit a dead end with traditional transistors, and the prospect of constantly building data centers is an environmental nightmare. Lightmatter has created a solution in photonic computing: using photons instead of electrons to take advantage of their higher bandwidth. We build chips for artificial intelligence computing. Our architecture leverages the unique properties of light to enable fast and efficient inference and training engines.
Responsibilities
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Support and optimize CAD/EDA tools, builds and workflow infrastructure.
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Design, deploy, and maintain secure cloud compute and storage infrastructure using infrastructure as code principles (primarily on AWS/Terraform).
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Develop and maintain automation using Python, Bash.
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Collaborate with cross functional teams to deliver reliable infrastructure and development flows.
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Operate effectively in a fast-paced startup environment, contributing across hardware and software development needs
Qualifications
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Currently enrolled in an undergrad Software/Computer/Electrical Engineering, Computer Science, or similar discipline
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Interest in infrastructure engineering
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Cloud development experience, preferably on AWS, including secure compute and storage infrastructure
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Willingness and curiosity to learn from an exciting team
Our internship hourly rates are a standard pay determined based on the position and your location, year in school, degree, and experience.
Hourly Rate in USD**$43—$47 USD**
Benefits
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Comprehensive Health Care Plan (Medical, Dental & Vision)
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Retirement Savings Matching Program
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Life Insurance (Basic, Voluntary & AD&D)
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Generous Time Off (Vacation, Sick & Public Holidays)
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Paid Family Leave
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Short Term & Long Term Disability
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Training & Development
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Commuter Benefits
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Flexible, hybrid workplace model
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Equity grants (applicable to full-time employees)
Benefits eligibility may vary depending on your employment status and location. Lightmatter recruits, employs, trains, compensates, and promotes regardless of race, religion, color, national origin, sex, disability, age, veteran status, and other protected status as required by applicable law.
Export Control
Candidates should have capacity to comply with the federally mandated requirements of U.S. export control laws.
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About Lightmatter

Lightmatter
Series CLightmatter develops photonic computing technology that uses light instead of electricity to accelerate artificial intelligence and machine learning workloads. The company creates specialized processors and interconnects designed to improve performance and energy efficiency for AI data centers.
51-200
Employees
Boston
Headquarters
$1.2B
Valuation
Reviews
3.3
3 reviews
Work-life balance
3.5
Compensation
2.5
Culture
3.0
Career
4.0
Management
2.5
55%
Recommend to a friend
Pros
Skilled professionals and mentorship opportunities
Innovative photonics and AI technology
Hands-on learning environment
Cons
Poor management communication and leadership
High cash burn without revenue generation
Management hostility to feedback
Salary Ranges
5 data points
Senior/L5
Senior/L5 · SR. STAFF DESIGN VERIFICATION ENGINEER
1 reports
$312,000
total per year
Base
$240,000
Stock
-
Bonus
-
$312,000
$312,000
News & Buzz
Lightmatter Unveils Guide Light Engine - Photonics Spectra
Photonics Spectra
News
·
3w ago
Disruptive Photonics innovator Lightmatter achieves record 1.6 Tbps per fiber to accelerate AI Optical Interconnect
***The strategic collaboration combines Qualcomm’s high-performance connectivity with Lightmatter’s photonic engine to achieve an 8X bandwidth-density advantage*** [Lightmatter](https://cts.businesswire.com/ct/CT?id=smartlink&url=http%3A%2F%2Fwww.lightmatter.co&esheet=54444648&newsitemid=20260311551229&lan=en-US&anchor=Lightmatter&index=1&md5=d3b1d970348edc1cf0e56e9246e7128c), the leader in photonic (super)computing, today announced a historic milestone in AI interco
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5w ago
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1
Lightmatter Interview
I have an interview coming up with Lightmatter for their Analog design team. Has anyone interviewed with them before? If you have, any insight into what they like to ask would be helpful!
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5w ago
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15
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9
Lightmatter Announces Reference Architecture Initiative with Industry Leaders in the Open Compute Project for Co-Packaged Optics - Yahoo Finance
Yahoo Finance
News
·
5w ago