Mechanical Design Engineer - Data Centers

Nebius is building a full-stack AI cloud platform for developers and enterprises. The Mechanical Design Engineer will provide technical expertise and lead evaluations of data center mechanical infrastructure, including cooling systems, HVAC, and critical equipment, while assessing feasibility, capacity, reliability, and readiness for future deployments.

Responsibilities:

• Lead mechanical engineering evaluations for data center opportunities
• Assess cooling infrastructure, HVAC systems, and critical mechanical equipment
• Evaluate air-cooled, liquid-cooled, and hybrid cooling solutions for AI and hyperscale environments
• Provide mechanical feasibility recommendations and Go/No-Go project input
• Conduct technical due diligence on existing and new data center facilities
• Review cooling capacity, chiller plants, CRAH/CRAC systems, and liquid cooling readiness
• Evaluate equipment availability, vendor capabilities, lead times, and deployment risks
• Support cooling topology, mechanical design strategy, and equipment selection decisions
• Validate mechanical design assumptions, capacity requirements, and construction readiness
• Partner with engineering teams, vendors, and consultants to ensure scalable, reliable data center solutions

Requirements:

• Experience supporting hyperscale data center or AI infrastructure development
• Experience with BMS controls integration and mechanical systems commissioning
• Professional Engineer (PE) license or similar professional certification
• Experience evaluating colocation or build-to-suit mechanical infrastructure in a due diligence capacity
• You're comfortable operating in ambiguity and building technical evaluation processes where none exist. You know how to independently assess complex mechanical infrastructure while helping define how future projects should be evaluated
• 8+ years of experience in data center mechanical engineering, MEP design, or mission-critical mechanical systems
• Experience with cooling topology design, liquid cooling systems, chiller plants, and CRAH/CRAC systems for high-density AI/hyperscale environments
• Strong understanding of mechanical capacity planning, equipment selection, and capex trade-offs in data center design
• Experience evaluating mechanical feasibility of sites or facilities prior to commercial commitment
• Excellent communication and executive presentation skills
• Bachelor's degree in Mechanical Engineering or a related discipline, or equivalent experience
• Applicants must be authorized to work in the country in which they apply