Lightmatter
Silicon Packaging Engineer - Intern & New Grad
Mountain View, CA · Junior · Internship
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About the role
- 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.
Responsibilities
- Signal & Power Integrity - high-speed interface analysis (PCIe, UCIe, SerDes), PDN design and simulation, eye diagrams, jitter, S-parameters
- Mechanical & Thermo-Mechanical Design - structural analysis, tolerance stack-up, GD&T, FEA, solder fatigue, CTE mismatch
- Packaging at Lightmatter means working on co-packaged optics for the AI infrastructure that doesn't exist yet and helping build the team and methods that will make it real.
Requirements
- Familiarity with at least one relevant tool - SolidWorks, ANSYS, ADS, Cadence, Python, MATLAB, or similar
- Wherever you are in your academic journey, you'll work on real problems from day one alongside engineers who have shipped leading-edge products at the world's most demanding semiconductor in the world.
- Pursuing or recently completed a BS, MS, or PhD in Electrical Engineering, Mechanical Engineering, Materials Science, or a related field
- Hands-on experience through coursework, capstone projects, research labs, or internships
- Curious, collaborative, and comfortable asking questions
Compensation
- 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
- Commuter Benefits
- Equity grants (applicable to full-time employees)
- 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.
- Flexible, hybrid workplace model
- Benefits eligibility may vary depending on your employment status and location.
Company info
- We are building the world's first photonic engine for AI at scale, and packaging is where the physics meets the product.
Visa & Work Authorization
- Export Control
This listing is sourced directly from Lightmatter's careers page and normalized into a canonical job model.