[Hiring] Principal Operations Engineer, Mechanical @Fluidstack

Role Description

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.
• Be the senior voice on chillers, cooling towers, CDUs, and the liquid-cooling architectures AI infrastructure depends on.
• 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.

Qualifications

• 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.

Requirements

• 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.

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.
• Total compensation may also include equity in the form of restricted stock units.
• We are committed to pay equity and transparency.