Packaging Thermal and Mechanical Analysis Internship - Summer 2027

Lightmatter is a photonic-computing company developing optical interconnects and light engines for AI-scale data centers.

Mountain View, United States
About Lightmatter

Founded in 2017 by MIT researchers, Lightmatter develops photonic infrastructure for AI, including its Passage interconnect platform and Guide light engine.

View jobs by Lightmatter

Skills

Candidate Availability

Required and preferred rules are kept separate and reflect the wording in the original posting.

About the Role

You'll build an AI-enabled framework that helps engineers quickly explore package design options before detailed simulation or hardware builds. You'll combine physics-based simulation with machine learning such as PINNs and surrogate models, automate FEA and CFD workflows in Python, run physical DOEs, and partner with packaging, thermal and thermo-mechanical engineers.

Requirements

  • Currently pursuing an MS or PhD in Mechanical Engineering or a related field
  • Coursework in heat transfer, fluid mechanics, FEA, CFD, numerical methods, and solid or fracture mechanics
  • Graduate research in multi-physics problems with modeling and experimental validation
  • Experience with thermal (Icepak, Fluent, Flotherm) and structural (Ansys, Abaqus, COMSOL) simulation tools
  • Proficiency in Python or similar
  • Curiosity and willingness to learn

Responsibilities

  • Build a flexible framework linking package design parameters to thermal performance and warpage
  • Develop and evaluate PINNs, surrogate models, and reduced-order or analytical models
  • Automate FEA and CFD setup, execution, and post-processing in Python
  • Train and validate models against high-fidelity simulation and hardware data, quantifying accuracy and uncertainty
  • Plan and run physical DOEs
  • Partner with packaging, thermal, and thermo-mechanical engineers to define requirements and adapt the framework

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)