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About the Role

Fluidstack is building civilization-scale infrastructure for AI, aiming to deliver gigawatts of compute faster than anyone else. This role is critical in ensuring the reliability and efficiency of our liquid-cooled systems by owning water chemistry and engineering water systems.

Responsibilities

• Own water chemistry across the fleet's cooling systems, including treatment programs, specifications, and monitoring for liquid-cooled gigawatts.
• Engineer the water systems, including makeup, treatment, filtration, and blowdown, as designed into the reference design.
• Set the coolant standards for direct liquid cooling, covering chemistry, materials compatibility, and lifetime.
• Run vendor programs, holding treatment suppliers accountable for results rather than just service visits.

Requirements

• Engineered industrial water treatment or cooling water chemistry.
• Diagnosed and cured corrosion, scaling, or biological problems.
• Specified treatment systems and held vendors to performance standards.
• Understand materials compatibility across metals, plastics, and coolants.
• Designed monitoring systems that catch drift before damage occurs.

Skills

• Water chemistry
• Cooling water chemistry
• Industrial water treatment
• Corrosion diagnosis
• Scaling diagnosis
• Biological problem diagnosis
• Treatment system specification
• Vendor management
• Materials compatibility
• Monitoring system design
• Direct liquid cooling coolant chemistry (Bonus)
• Cooling towers at scale (Bonus)
• Discharge permitting (Bonus)
• CWT credential (Bonus)

About the Company

• Fluidstack exists to make humanity more free by building 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 hire people who care deeply about the problem space.

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.