Mechanical Engineer, Advanced Engineering (DC Chiller)

POSITION SUMMARY:

As a Mechanical Engineer in the Advanced Engineering group, you will architect the future of data center infrastructure. Fluidstack is developing a direct current air cooled chiller program to support its next generation AI data centers. You will own the thermodynamic design of the chiller platform, addressing mechanical and thermal challenges for high-power HVDC/LVDC power distribution systems.

RESPONSIBILITIES:" Own the thermodynamic design of the direct current air cooled chiller platform for next-generation AI data centers, focusing on refrigeration cycle optimization and performance testing." Address EMI/EMC shielding, creepage/clearance requirements, and mechanical integration of power modules, capacitors, and semiconductor devices in compact, high-reliability packages." Define and execute mechanical and thermal validation testing including structural FEA, thermal cycling, vibration, and environmental qualification for power electronics assemblies." Lead end-to-end mechanical design of HVDC/LVDC power distribution systems and integrate cooling solutions for high-power electronics in data centers." Bring refrigeration equipment from concept through prototype to production.

QUALIFICATIONS:" BS or MS in Mechanical Engineering or related field." 7+ years of mechanical design experience in power systems, high-power electronics, or energy infrastructure with strong thermal management background." Deep expertise in structural design, heat transfer, CFD analysis, electronics packaging, and outdoor-rated electrical equipment enclosures. " Proficiency in CAD software (SolidWorks, AutoCAD) and thermal simulation tools (Ansys Fluent or similar)." Familiarity with high-voltage DC systems and NEC, UL, or IEC standards. Refrigeration/Chiller-Specific Qualifications" 5+ years of experience in refrigeration system design, chiller development, or HVAC equipment engineering." Deep understanding of vapor compression refrigeration cycles including centrifugal compressor performance characteristics." Experience with thermal modeling tools (EES, CoolPack, or similar) and refrigerant property databases." Hands-on experience bringing refrigeration equipment from concept through prototype to production." Familiarity with low GWP refrigerants and evolving refrigerant regulations." Experience with ASHRAE standards (15, 34, 90.1) and UL certification processes." Strong analytical skills and comfort with ambiguity in early-stage product development.

BENEFITS SUMMARY: Individual compensation is determined by skills, qualifications, experience, and location. Compensation details listed in this posting reflect the base hourly rate or annual salary only, unless otherwise stated. In addition to base compensation, full-time roles are eligible for Medical, Dental, Vision, Commuter and 401K benefits with company matching.

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