Lead Mechanical Engineer, Deployment Engineering

FluidStack

Lead Mechanical Engineer for deploying AI infrastructure at Fluidstack. Overseeing mechanical and cooling systems across multiple sites in a hybrid work model.

Posted 7/11/2026full-timeAustin • Texas • 🇺🇸 United StatesSenior💰 $300,000 - $340,000 per yearWebsite

About the role

Key responsibilities & impact

Lead end-to-end deployment and commissioning of mechanical and cooling systems across concurrent sites, from pre-deployment readiness through live handover to operations.
Own operational reliability of cooling infrastructure across the live fleet, diagnosing thermal performance issues and implementing fixes that hold at scale.
Build and maintain mechanical commissioning standards, acceptance test procedures, and runbooks for cooling systems (chillers, CDUs, direct liquid cooling) that site teams run independently.
Serve as the on-site technical authority through equipment startup, performance validation, and load testing, resolving field failures before they delay handover.
Set and enforce mechanical reliability standards across the portfolio: preventive maintenance thresholds, redundancy validation, and performance benchmarks under live AI load.

Requirements

What you’ll need

You hold a bachelor's degree in Mechanical Engineering or a related field.
You've owned field deployment and commissioning of mechanical systems on data centers or high-density mission-critical facilities.
You've commissioned and troubleshot cooling systems (chilled water, CDUs, or direct liquid cooling) on live or commissioning-phase infrastructure.
You've built commissioning standards, acceptance test procedures, and maintenance runbooks that hold up at a portfolio level.
You've diagnosed and resolved mechanical failures and thermal performance issues on live infrastructure under time pressure.
You've mentored mechanical engineers in the field and built their ability to commission independently.
You can travel to deployment and operations sites up to 50 percent of the time.
Bonus: Professional Engineer (PE) license. Direct-to-chip or liquid cooling operational experience at AI-class rack densities. Experience building or leading a mechanical commissioning or reliability program across multiple concurrent sites. Familiarity with CMMS platforms, predictive maintenance tools, and thermal monitoring systems. Proficiency in CFD tools (6SigmaET, Icepak) for operational troubleshooting and thermal validation.

Benefits

Comp & perks

Offers equity in the form of stock options

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Mechanical Systems DeploymentCooling Systems TroubleshootingCommissioning Standards DevelopmentPreventive Maintenance ImplementationPerformance Benchmarking

Soft Skills

Mentoring Mechanical EngineersProblem Solving Under Time Pressure

Certifications

Professional Engineer (PE) License