<div class="content-intro"><p><strong>About Nebius:</strong></p> <p>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.</p> <p>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.</p> <p>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.</p></div><h3><strong><span data-ccp-props="{}">The role</span></strong></h3> <p>We are seeking a <strong>Critical Infrastructure Engineer</strong> to help ensure the availability, resilience, and operational readiness of the critical systems supporting Nebius data center IT infrastructure.</p> <p>The primary objective of this role is <strong>uptime</strong>.</p> <p>You will provide technical oversight across the electrical and mechanical infrastructure responsible for delivering reliable power and cooling to our GPU and IT environments. Rather than serving primarily as a maintenance technician, you will verify that critical infrastructure is operated safely, consistently, and in accordance with established SLAs, engineering standards, change-control procedures, and operational best practices.</p> <p>You will also act as an important bridge between IT infrastructure teams and electrical/mechanical specialists. The ideal candidate understands how servers, networking equipment, racks, and GPU systems operate inside a data center while also having enough exposure to critical facilities systems to understand—and challenge when necessary—the infrastructure supporting them.</p> <p>The position combines technical analysis, provider governance, change management, incident response, and hands-on familiarity with data center IT environments.</p> <p><span data-ccp-props="{"335559685":720,"335559991":360}">You will work <strong>onsite</strong> in our <strong>Minnesota</strong><strong> </strong>data center location.</span></p> <h2>Your responsibilities will include:</h2> <h3>Critical Infrastructure & Uptime</h3> <ul> <li>Help ensure the availability and operational readiness of the electrical and mechanical infrastructure supporting production data halls and high-density GPU environments.</li> <li>Monitor critical infrastructure performance against contractual SLAs, operational requirements, and established reliability standards.</li> <li>Develop a strong understanding of the complete power and cooling path supporting IT equipment and identify conditions that could introduce operational risk.</li> <li>Review infrastructure capacity, redundancy, and operating conditions to ensure the environment can reliably support current and planned compute deployments.</li> <li>Identify infrastructure risks and work with service providers and internal teams to drive corrective actions before they impact production.</li> <li>Support infrastructure planning for data center expansions, capacity increases, and new GPU deployments.</li> </ul> <h3>Power & Electrical Infrastructure</h3> <ul> <li>Provide technical oversight of data center electrical infrastructure, including generator plants, automatic transfer switches (ATS), UPS systems, battery banks, switchgear, breakers, busbars, bus plugs, PDUs, and related power distribution equipment.</li> <li>Understand electrical distribution from facility-level infrastructure through rack-level delivery and IT equipment.</li> <li>Participate in technical reviews involving power capacity, electrical distribution, equipment sizing, redundancy, and infrastructure design.</li> <li>Work with electrical engineers and infrastructure providers to evaluate proposed changes and ensure appropriate engineering validation is completed before production implementation.</li> </ul> <h3>Cooling & Mechanical Infrastructure</h3> <ul> <li>Understand the cooling architecture supporting high-density GPU and IT environments, including water and glycol loops, rear-door heat exchangers (RDHx), evaporative systems, coolant distribution systems, facility water systems, dry coolers, and chillers.</li> <li>Evaluate how cooling infrastructure interacts with GPU systems and high-density racks to maintain required operating conditions.</li> <li>Partner with mechanical engineers and service providers to review system performance, capacity constraints, and proposed infrastructure changes.</li> <li>Identify potential thermal or cooling risks that could affect compute availability or future capacity.</li> </ul> <h3>Provider Governance & Change Control</h3> <ul> <li>Provide technical oversight of third-party critical infrastructure and colocation service providers.</li> <li>Ensure provider activities comply with Nebius policies, approved procedures, contractual SLAs, and operational requirements.</li> <li>Review and approve change requests involving critical infrastructure supporting production environments.</li> <li>Challenge incomplete or high-risk work plans and ensure appropriate testing, rollback procedures, risk analy