DC Operations Manager - Critical Infrastructure

About Nebius: Nebius is leading a new era in cloud infrastructure for the global AI economy. We are building a full-stack AI cloud platform that supports developers and enterprises from data and model training through to production deployment, without the cost and complexity of building large in-house AI/ML infrastructure. Built by engineers, for engineers. From large-scale GPU orchestration to inference optimization, we own the hard problems across compute, storage, networking and applied AI. Listed on Nasdaq (NBIS) and headquartered in Amsterdam, we have a global footprint with R&D hubs across Europe, the UK, North America and Israel. Our team of 1,500+ includes hundreds of engineers with deep expertise across hardware, software and AI R&D. The Role Nebius is building next generation, high density AI infrastructure, and we are looking for a Data Center Operations Manager - Critical Infrastructure to own the performance, reliability, and operational excellence of our data center facilities. This is a critical facilities leadership role , responsible for power, cooling, and environmental systems that support GPU driven workloads. You will ensure our sites operate with maximum uptime, efficiency, and safety , while also supporting capacity expansion and infrastructure improvements as we scale. Unlike a pure construction role, this position is focused on steady-state operations, incident management, and long term facility performance , with involvement in commissioning and new site readiness where needed. Responsibilities: Critical Facilities Operations • Own day to day operations of electrical and mechanical systems including UPS, generators, switchgear, PDUs, chillers, CRAH/CRAC units, and cooling infrastructure • Ensure high availability and uptime of all critical systems supporting data center operations • Lead incident response for facility related events, including root cause analysis and corrective actions • Monitor system performance via BMS/DCIM and drive improvements in reliability and efficiency Maintenance & Vendor Management • Oversee preventive and corrective maintenance programs for all facility systems • Manage and hold accountable third party vendors and service providers • Ensure all maintenance activities follow SOPs, EOPs, and MOPs • Drive standardization and continuous improvement of operational procedures Capacity, Efficiency & Optimization • Partner with engineering and operations teams on capacity planning and infrastructure scaling • Monitor and improve PUE and overall energy efficiency • Identify and implement reliability and sustainability improvements across facilities • Support high density environments, including air and liquid cooling strategies aligned with modern AI workloads Compliance, Safety & Risk Management • Ensure compliance with local regulations, safety standards, and industry best practices • Maintain strong adherence to HSE (Health, Safety, Environmental) standards • Lead audits, inspections, and documentation for operational readiness • Act as the primary point of contact for facility related regulatory interactions Commissioning & Site Readiness (Light but Important) • Support commissioning, testing, and handover of new or expanded infrastructure • Participate in FAT/SAT and system validation for critical equipment • Ensure smooth transition from construction to steady state operations • Validate that systems are operationally ready with proper documentation and procedures Cross-Functional Collaboration • Partner closely with: • • Data Center Operations teams • Infrastructure & deployment engineers Network and hardware teams • Act as the bridge between facilities and IT infrastructure , ensuring both layers operate seamlessly (a key distinction in N