Senior Mechanical Engineer : Data Center Liquid Cooling (Ashburn)

MissionXI are searching for a Senior Mechanical Engineer for a leading global developer and operator of next-generation digital infrastructure. The ideal candidate will bring deep expertise in data center construction, liquid-based thermal management systems, thermodynamics, fluid dynamics and mechanical design.

Key Responsibilities

• Lead mechanical engineering design and integration efforts for large-scale data center developments.
• Develop and validate liquid cooling and direct-to-chip thermal management solutions, including cold plate, manifold, and rack distribution systems.
• Oversee the design and specification of HVAC, piping, and fluid systems to support high-density compute environments.
• Collaborate with electrical, controls, and construction teams to ensure optimal system performance and coordination across disciplines.
• Conduct thermal modeling, CFD analysis, and performance optimization studies to support design decisions.
• Evaluate vendor solutions, oversee factory witness testing, and ensure system compliance with mechanical codes, ASHRAE, and industry standards.
• Manage design consultants and mechanical contractors through design, construction, and commissioning.
• Support research and pilot projects for emerging cooling technologies and sustainability initiatives.
• Provide technical mentorship to junior engineers and review mechanical deliverables for quality and consistency.

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