Commissioning Mechanical Lead, Data Centers

Role Scope

Lead mechanical commissioning across flushing, cooling, heat rejection, and liquid cooling systems for high performance data centers, spanning Level 1 through Level 5 commissioning phases.
Drive the Testing & Verification program for mechanical cooling, heat rejection, and data hall thermal systems, working with commissioning agents and engineers from pre-site testing through on-site functional testing.
Own commissioning documentation across multiple projects and sites, tracking issues, test results, and reports with enough rigor to hold up under an owner audit.
Run on-site commissioning operations across general contractors, designers, and vendors: inspections, safety enforcement, progress tracking, and issue resolution.
Close out final operational handover for mechanical systems, confirming every system is ready for service before occupancy.

What We're Looking For

• A minimum of 10 or more years of hands-on commissioning experience
• Commissioning and operations experience with data center mechanical equipment such as chillers, cooling towers, CRAH/CRAC units, AHUs, CDUs, direct-to-chip liquid cooling, pumps, hydronic piping, and BMS/BAS integration
• Built and executed Testing & Verification programs end to end, from pre-site functional testing through on-site startup, troubleshooting, and support
• Experience in design and constructability reviews with commissioning and operations in mind
• Rigorous commissioning records, issue logs, and test reports for audits
• A degree in Mechanical Engineering
• Bonus: ASHRAE or BCxA commissioning guideline experience, controls or electrical systems knowledge, hyperscale or mission-critical data center project experience, managing multiple concurrent project sites

Compensation

$250,000 - $300,000 per year, depending on experience, skills, qualifications, and location.
Offers equity in the form of stock options.
We are committed to pay equity and transparency.

About Fluidstack

We exist to make humanity more free. For most of human history, you farmed or you starved. Technology gave people more time for the things they wanted to do, instead of things they had to do. Powerful AI will be the biggest lever for human choice we've ever built - but only if models are aligned with what humanity actually wants. There are groups building AI who don't share these goals. Whoever deploys frontier compute infrastructure fastest will decide whether AI expands human freedom or shrinks it. We're singularly focused on delivering 10 to 100s of GWs of compute faster than anyone else, rethinking every layer of the stack. We acquire power, design and build data centers, and operate them - with teams spanning hardware and software. Speed and scale are our key differentiators. Come be a part of building civilization-scale infrastructure for AI. We hire people who care deeply about this problem space. If that is you, please apply!