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 Nebius environments)  • Support broader operational goals around scalability, reliability, and standardization    Requirements: • 7–10+ years of experience in data center or mission critical facilities operations  • Strong hands on knowledge of critical infrastructure systems:  • Electrical distribution (UPS, generators, switchgear)  • Cooling systems (chillers, HVAC, CRAH/CRAC, liquid cooling exposure preferred)  • Experience operating in high availability environments with strict uptime requirements  • Proven experience managing vendors, maintenance programs, and incident response  • Familiarity with BMS/DCIM systems and operational monitoring  • Experience developing and enforcing SOPs, EOPs, and MOPs  • Strong understanding of safety, compliance, and regulatory requirements    Preferred: • Experience in hyperscale, colocation, or AI/GPU driven data centers  • Exposure to high-density environments and advanced cooling solutions  • Experience supporting new site builds, commissioning, or expansions  • Basic understanding of IT infrastructure (rack, power distribution, hardware) to effectively partner with engineering teams     Key employee benefits: • Health insurance: 100% company-paid medical, dental and vision coverage for employees and families. • 401(k) plan: Up to 4% company match with immediate vesting. • Parental leave: 20 weeks paid for primary caregivers, 12 weeks for secondary caregivers. • Remote work reimbursement: Up to $85/month for mobile and internet. • Disability & life insurance: Company-paid short-term, long-term and life insurance coverage. Compensation We offer competitive salaries, ranging from $140,000-$170,000 based on your experience Benefits & Perks: • Competitive compensation • Career growth and learning opportunities • Flexibility and ownership • Collaborative and innovative culture • Opportunity to work on impactful AI projects • International environment and talented teams What's it like to work at Nebius: Fast moving - Bold thinking - Constant growth - Meaningful impact - Trust and real ownership - Opportunity to shape the future of AI  Equal Opportunity Statement: Nebius is an equal opportunity employer. We are committed to fostering an inclusive and diverse workplace and to providing equal employment opportunities in all aspects of employment. We do not discriminate on the basis of race, color, religion, sex (including pregnancy), national origin, ancestry, age, disability, genetic information, marital status, veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by applicable law. Applicants must be authorized to work in the country in which they apply and will be required to provide proof of employment eligibility as a condition of hire.  If you need accommodations during the application process, please let us know.