Lightmatter at a glance
lightmattergame.com
Lightmatter
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 a Machine Learning Systems Researcher to join our Machine Learning team. This team is focused on inventing novel hardware systems using Lightmatter technology, and modeling the performance of Lightmatter-enabled systems on both training and inference workloads.
This is primarily a creative role where you need to think outside the box to push the boundaries of systems research with the power of silicon photonics at your fingertips. This role will work closely with our product, solutions architecture, and engineering teams to generate impactful performance analysis, create high-performance rack-scale designs, and publish cutting-edge ML systems research.
Responsibilities
- Stay up to date on the latest advancements in Machine Learning research.
- Build tools to model the performance of Passage-enabled systems when running both training and inference workloads for the latest AI models.
- Collaborate with our product and solutions architecture teams to design compelling reference platforms for our customers, powered by Lightmatter technology.
- Function as the Machine Learning expert in the room.
- Publish academic papers at top industry conferences and journals. Help support the publication of whitepapers, blog posts, and other marketing collateral.
Qualifications
- PhD in Computer Science, Electrical Engineering, or a related field.
- 2 – 5 years of industry and/or research experience in the field.
- Solid background in Machine Learning systems research and experience with performance evaluation and performance modeling.
- Hands-on experience with machine learning / deep learning methods and extensive knowledge of Large Language Model training and inference frameworks.
- Academic publications in relevant journals and industry conferences.
- Must have knowledge of AI systems, including compute (GPUs, TPUs, etc.) and networking (Ethernet, Infiniband, NVLink, etc.) technologies, and their various topologies, paradigms, and trade-offs.
- Ability to independently own projects from conception to completion.
Preferred Qualifications
- Demonstrated ability to creatively problem-solve and apply first-principles thinking to generate novel ideas, particularly in ambiguous, evolving environments.
- Exceptional skills in communicating complex research outcomes and technical concepts to partners and internal stakeholders, while embodying our value of speaking truth.
- Ability to work across research, product, and business functions, rolling up your sleeves to bridge gaps and accelerate outcomes, while demonstrating the core value of “we are one Lightmatter.”
- Adaptable and versatile, thriving in a high-speed, high-precision environment.
We offer competitive compensation. The base salary range for this role determined based on location, experience, educational background, and market data.
Benefits
- Comprehensive Health Care Plan (Medical, Dental & Vision)
- Retirement Savings Matching Program
- Life Insurance (Basic, Voluntary & AD&D)
- Generous Time Off (Vacation, Sick & Public Holidays)
- Paid Family Leave
- Short Term & Long Term Disability
- Training & Development
- Commuter Benefits
- Flexible, hybrid workplace model
- 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.
To apply for this job please visit boards.greenhouse.io.
Explore Lightmatter online
What people say about Lightmatter
- The 'impossible' EmDrive could reach Pluto in 18 months?
- Could dark matter not exist?
- A wave of experiments is probing the root of quantum weirdness
- Is The Speed of Light Everywhere the Same?
Recent news
- Lightmatter Revenue, Valuation & Funding History (2024) - GetLatka
- Lightmatter at Computex 2026: The AI Infrastructure Bottleneck Has Shifted from Compute to Interconnect - semivision
- Lightmatter Joins NVLink Fusion Club - Counterpoint Research
- Lightmatter - 2026 Funding Rounds & List of Investors - Tracxn
- The AI boom is running into a copper problem - Business Insider
Aggregated from public discussions and news; opinions are the authors’ own.
Working in Mountain View, Santa Clara County
Weather right now in Mountain View, Santa Clara County: checking… · Local time:
Mountain View is a city in Santa Clara County, California, United States, part of the San Francisco Bay Area. Named for its views of the Santa Cruz Mountains, the population was 82,376 at the 2020 census.
California is a U.S. state in the Western United States that lies on the Pacific Coast. It borders Oregon to the north, and Nevada and Arizona to the east; it also shares an international border with the Mexican state of Baja California to the south. With over 39 million residents across an area of 163,696 square miles (423,970 km2), it is the largest U.S. state by population and third-largest by
Source: Wikipedia (state)
Market context
- Similar listings in Mountain View, CA 1
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