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About the Role

Fluidstack is seeking to deliver 10 to 100s of GWs of compute faster than anyone else by rethinking every layer of the stack. We acquire power, design and build data centers, and operate them. We hire people who care deeply about this problem space.

Responsibilities

• Own mechanical operations on shift as the top escalation point for chiller plant, CRAC/CRAH, air handler, pump, and cooling loop failures in a live, always-on facility.
• Run preventive maintenance execution end to end: scheduling, vendor supervision, lockout/tagout, and QA of completed work.
• Lead root-cause analysis for mechanical incidents and drive corrective actions to closure.
• Build and maintain operating procedures (SOPs, MOPs, EOPs) for mechanical systems.
• Drive BMS alarm hygiene and trend analysis.
• Close out commissioning-to-operations handovers for new mechanical plant, verifying performance against design.

Requirements

• 8+ years of hands-on mechanical or critical facilities operations in data centers, with time at a hyperscale operator, colocation provider, or cloud data center operations team.
• Deep operating knowledge of chillers, cooling towers, CRAC/CRAH units, air handlers, pumps, and hydronic loops, including startup, failover, and recovery under load.
• Fluency in BMS platforms: reading trends, tuning alarms, and diagnosing faults from controls data.
• A track record owning root-cause analysis and preventive maintenance programs at scale.
• Experience as the senior mechanical escalation point on shift, making calls during outages when the runbook runs out.
• Willingness to work rotating shifts and carry on-call responsibility for mechanical outages.
• Ability to operate calmly in high-uptime, fast-scaling environments.

Skills

• Mechanical operations
• Critical facilities operations
• Chiller plant operation
• CRAC/CRAH unit operation
• Air handler operation
• Pump operation
• Cooling loop operation
• BMS platforms
• Root-cause analysis
• Preventive maintenance
• Operating procedures (SOPs, MOPs, EOPs)
• Direct-to-chip liquid cooling
• CDUs
• CFC/HCFC refrigerant certification (EPA 608 Universal or equivalent)
• Commissioning handover

Location

• Onsite

Work Type

• Full-time
• Rotating shifts

Experience Level

• 8+ years

About the Company

• Fluidstack exists to make humanity more free by delivering civilization-scale infrastructure for AI.
• We are 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.
• We operate with extreme ownership, full autonomy, velocity, first principles, and a love of the game.

Equal 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.