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Photonics Test Engineering, Intern

Lightmatter
Mountain View, CA Intern
POSTED ON 12/25/2025
AVAILABLE BEFORE 2/8/2026
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 looking for a Photonics Test Engineering Intern to join their team to help with automated photonic test systems. The ideal candidate should have a basic understanding of photonic devices or optoelectronics, be proficient in Python, and be enthusiastic about applying their skills to data analysis and test method development.

Responsibilities

  • Work on wafer probers to help test data collections from photonic devices
  • Develop software to automate photonic test system and develop test methods for photonic device testing
  • Data analysis and develop data analysis algorithms
  • Work with partner teams to assist with jobs related to reliability test and PIC design validation test

Requirements

  • Currently enrolled in graduate or undergraduate program
  • Basic understanding of photonic devices or optoelectronics
  • Interest in photonic test for product engineering
  • Fluent in programming languages such as Python
  • Willingness and curiosity to learn from an exciting team!

The pay range for students currently enrolled in a bachelor's program: $43-$47

The pay range for students currently enrolled in a master's program: $53-$57

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 USD - $57 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.

Salary : $43 - $57

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