# Mechanical Engineer (Physical Infrastructure)

**Company:** [xAI](https://hotfix.jobs/companies/xai)
**Location:** Memphis, TN
**Role:** Hardware Engineering
**Skills:** Cfd, FEA, Autocad, Revit, Hvac, Ashrae, Nfpa, Fmea, Heat Exchangers, Liquid Cooling
**Posted:** 2026-05-12

> Designs, optimizes, and analyzes mechanical systems like liquid cooling, HVAC, and structural components for xAI's high-density AI supercomputing facilities. Requires bachelor's in mechanical engineering and expertise in thermal/fluid analysis tools.

## Job Description

## Responsibilities
- Design and optimize mechanical systems for high-density AI data centers, including liquid cooling loops, cold plates, manifolds, heat exchangers, server enclosures, structural supports, and facility HVAC systems.
- Perform detailed engineering analysis — thermal, fluid dynamics, structural, airflow, and heat transfer — using **CFD**, **FEA**, and other simulation tools.
- Develop specifications, 3D models, drawings, BOMs, and test plans; support prototyping, qualification, and iterative improvements.
- Integrate mechanical systems with power generation, electrical infrastructure, liquid cooling, and building MEP systems.
- Conduct failure mode analysis (**FMEA**), root cause investigations, and reliability modeling to meet extreme uptime and efficiency targets.
- Collaborate with cross-functional teams on new facility designs, cluster expansions, and continuous improvement of mechanical standards.
- Interface with vendors and contractors for equipment selection, fabrication, installation, and commissioning.
- Drive design decisions that balance performance, manufacturability, cost, and scalability.

## Basic Qualifications
- Bachelor's degree in mechanical engineering or other engineering discipline

## Preferred Skills and Experience
- Previous experience in designing and maintaining industrial **HVAC**, plumbing, mechanical systems
- Proven track record in clean-room design and maintenance
- Proficiency in implementing maintenance solutions with minimal operational impact
- Demonstrated ability to assist technicians with troubleshooting and repair efforts
- Capacity to thrive in high-concentration, high-stress environments
- Familiarity with **AutoCAD**/**Revit** software applications
- Knowledgeable about relevant industry codes and standards, such as **ASHRAE**, **NFPA**, and International Building Code
- Previous experience in system design, sizing, specification, and installation, particularly focusing on HVAC chillers, pumps, boilers, air handlers, and HEPA filtration systems
- In-depth understanding of HVAC operations, especially in managing chilled water plants operated through air-cooled chillers
- Experience with advanced data/monitoring systems like **Schneider Building Management Systems**
- Strong understanding of construction project management principles

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