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Data & AI Platform, Intern - Summer 2027

Boston, MA

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 job 

Are you ready to do meaningful internship work on technology that is changing how AI systems are built? This team is Lightmatter's Central Data Platform, the Snowflake foundation that engineering, product, and analytics teams across the company build on. This summer you will help bring AI into that platform: Cortex Agents that answer questions over trusted data, semantic views that give those agents a shared definition of business metrics, and AI features built into applications already running in Snowflake. The components you build will be documented and reused by engineering teams across Lightmatter.

Responsibilities:

  • Build and evaluate Cortex Agents that combine Cortex Analyst (structured data) and Cortex Search (documents) to answer engineering and analytics questions in natural language.
  • Design semantic views over core data products, defining metrics, dimensions, and relationships so agents and BI tools return consistent answers.
  • Integrate AI into applications already deployed in Snowflake, such as Streamlit apps, using Cortex AI SQL functions and agents exposed through Snowflake's managed MCP server.
  • Set up the AI gateway, observability, and orchestration layer: governed model access, evaluations and tracing, cost and usage monitoring, and scheduled workflows.
  • Package the work as reusable, documented platform components (templates, Cortex Code skills, runbooks) and demo them to engineering teams at the end of the internship.

Requirements: 

  • Currently enrolled in a Master's program in Computer Science, Data Science, or a related field
  • Interest in data engineering, data platforms, and applied AI
  • Demonstrated interest in building and improving AI-based tools, shown through personal projects, coursework, research, or open-source contributions

Preferred Qualifications

  • Coursework, projects, or internship experience with SQL, Python and cloud data warehouses (Snowflake preferred).

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

$50 - $55 USD

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. 

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