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MatX is building next-generation AI compute infrastructure for large-scale LLM training and inference. We are looking for a hands-on Mechanical Engineer to design, develop, and validate mechanical systems for our rack-scale AI platform from compute trays and rack enclosures to fully liquid-cooled infrastructure.
Develop AI compute trays, rack enclosures, and mechanical assemblies in accordance with OCP Rack specifications
Produce 3D models and 2D drawings at the component, sub-assembly, and assembly levels, and maintain the mechanical BOM, drawing packages, and GD&T documentation throughout the NPI stages
Design and integrate liquid cooling hardware including cold plates, manifolds, quick-disconnect fittings, and CDU-to-rack interfaces
Support the mechanical integration of compute trays into rack systems across power, liquid cooling, cabling, and connector interfaces
Carry out tolerance stack-up analysis at multiple levels, from package through rack, to confirm proper fit and straightforward assembly
Take a hands-on role in EVT, DVT, and PVT prototype builds, bring-up, and debug
Apply DFM/DFA principles and contribute to design reviews with JDM/ODM manufacturing partners
5+ years of mechanical engineering experience in server, data center, or AI compute hardware
Experience designing rack-scale hardware — compute trays, rack enclosures, or server platforms
Familiarity with OCP Open Rack standards
Experience with liquid cooling systems — cold plates, manifolds, or CDU interfaces
Proficiency in 3D CAD (SolidWorks or equivalent) and GD&T
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Familiarity with sheet metal, extrusion, casting, and machining manufacturing processes
Experience with high-power AI accelerator platforms
Hands-on cold plate manufacturing experience
Experience working with JDM/ODM partners
Knowledge of liquid cooling reliability standards and leak testing methodologies
AI semiconductor company designing high-throughput chips for large language models and frontier AI labs.
Visit company websiteJobs and hiring trends$160,000 - $275,000
Full-time
Senior · 5+ years experience
Hybrid
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