Principal Mechanical Operations Lead — Data Center Operations

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.

Role Scope

Serve as the most senior technical authority for operational mechanical and cooling infrastructure across the hyperscale AI data center fleet.
Lead site assessments and operational audits, and drive team technical readiness ahead of site activation.
Review designs and specifications from an operational lens, and feed operational learnings back into design and manufacturing as the build model becomes productized.
Own mechanical operational readiness and the commissioning-to-operations handover for new sites.
Author and approve high-risk mechanical MOPs, EOPs, and AOPs, and lead root cause analysis on significant cooling events.

What We're Looking For

• You've spent a career on critical mechanical systems and you treat thermal precision as non-negotiable for AI workloads.
• You command chilled water, chillers, cooling towers, CRAH/CRAC, pumps, CDUs, and direct liquid cooling in live environments.
• You've authored and executed high-risk mechanical MOPs and led root cause analysis on significant cooling events.
• You assess operational readiness at any site, audit the posture, and raise the standard.
• You teach and build the mechanical readiness of teams ahead of activation.
• Bonus: Hyperscale or large colocation at hundreds of MW. Direct liquid cooling and CDU operations. ASHRAE TC 9.9. Chilled water plant optimization. Uptime Institute.

Salary & Benefits

• Competitive total compensation package (salary + equity).
• Retirement or pension plan, in line with local norms.
• Health, dental, and vision insurance.
• Generous PTO policy, in line with local norms.

Career Path

The base salary range for this position is $220,000 - $260,000 per year, depending on experience, skills, qualifications, and location. This range represents our good faith estimate of the compensation for this role at the time of posting. Total compensation may also include equity in the form of stock options. We are committed to pay equity and transparency.

Equal Employment Opportunity

Fluidstack is an Equal Employment Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability and protected veterans’ status, or any other characteristic protected by law. Fluidstack will consider for employment qualified applicants with arrest and conviction records pursuant to applicable law.

Contact Information

If there is an error with your submission and you did not receive a confirmation email, please email careers@fluidstack.io with your resume/CV, the role you've applied for, and the date you submitted your application-- someone from our recruiting team will be in touch.