Thermal & Mechanical Engineering Intern

At d-Matrix, we are focused on unleashing the potential of generative AI to power the transformation of technology. We are at the forefront of software and hardware innovation, pushing the boundaries of what is possible. Our culture is one of respect and collaboration.

We value humility and believe in direct communication. Our team is inclusive, and our differing perspectives allow for better solutions. We are seeking individuals passionate about tackling challenges and are driven by execution.  Ready to come find your playground? Together, we can help shape the endless possibilities of AI. 

Summer 2026 Intern – Thermal & Mechanical Engineering

Location: Santa Clara, CA (On-site)

Team: Hardware Engineering / Systems Architecture

Dates: June 2nd - August 21st or June 22nd-Sept 11th

About the Role

At d-matrix, we are pushing the boundaries of AI compute efficiency. High-performance AI silicon generates significant heat, and our mission is to ensure our platforms remain cool and reliable under the most intense LLM inference workloads.

As a Thermal & Mechanical Engineering Intern, you will play a hands-on role in the physical realization of our hardware. You will transition between the CAD environment and the R&D lab, helping us build the infrastructure required to validate our next-generation liquid and air-cooled systems.

Key Responsibilities

- Lab Infrastructure & Setup: Assist in the foundational setup of the Thermal and Mechanical R&D lab. This includes organizing high-power test benches and installing specialized sensing equipment.

- Hardware Validation: Figure out and document the procedures to power and run PCIe accelerator cards in a standalone environment for thermal stress testing.

- Wind Tunnel Testing: Execute rigorous aerodynamic characterization using a wind tunnel. You will measure pressure drop and thermal performance across multiple PCIe cards to generate a high-fidelity statistical dataset for our architecture team.

- Thermal Modeling...