Machine Learning Research Intern

Remote, USA
Posted Jun 14, 2026
Full-time

Lightmatter is leading the revolution in AI data center infrastructure, and they are seeking a PhD Intern to join their Machine Learning team. This internship offers a unique opportunity to contribute to the invention of novel hardware systems and model their performance on training and inference workloads.

Responsibilities

  • Research and stay current on the latest advancements in Machine Learning systems and models, particularly Large Language Models (LLMs)
  • Develop and utilize tools to model the performance of Lightmatter-enabled systems running various training and inference workloads
  • Collaborate on the design of compelling reference platforms systems powered by Lightmatter technology
  • Work towards publishing academic papers at top industry conferences or journals, and assist in creating whitepapers, blog posts, and other technical collateral

Skills

  • Currently pursuing a PhD in Computer Science, Electrical Engineering, or a closely related field
  • Solid academic or research background in Machine Learning systems research, including experience with performance evaluation and modeling
  • Hands-on experience with machine learning/deep learning methods and knowledge of Large Language Model training and inference frameworks
  • Familiarity with modern AI systems infrastructure, including compute (e.g., GPUs, TPUs) and networking technologies (e.g., Ethernet, Infiniband) and their various topologies and trade-offs
  • Demonstrated ability to independently own a research project and drive it from concept to completion within the internship period
  • Prior academic publications in relevant venues are a strong plus
  • A demonstrated ability for creative problem-solving and applying first-principles thinking to generate novel ideas in an ambiguous environment
  • Excellent skills in communicating complex research and technical concepts clearly and effectively
  • A strong desire to collaborate across research and engineering functions to bridge gaps and accelerate outcomes

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)

Company Overview

  • Lightmatter develops photonic chips that enable data processing and communication using light instead of electricity. It was founded in 2017, and is headquartered in Mountain View, California, USA, with a workforce of 201-500 employees. Its website is https://lightmatter.co.

  • Company H1B Sponsorship

  • Lightmatter has a track record of offering H1B sponsorships, with 21 in 2025, 12 in 2024, 5 in 2023, 4 in 2022, 4 in 2021, 4 in 2020. Please note that this does not guarantee sponsorship for this specific role.

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