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We are hiring a Head of DC Infrastructure for our client — a company building a large-scale AI data center (with a planned capacity of 300 MW) in Poland, on a site currently undergoing active reconstruction into modern technological infrastructure. The first phase, with a capacity of 50 MW, is planned to go live this year. This role requires regular business trips to the construction site in Poland (full relocation is not required).Role descriptionThe Head of DC Infrastructure builds and leads the on-site engineering team responsible for the MEP systems (cooling, power, UPS, generators) that keep the data center running. This role owns day-to-day reliability of the facility's physical infrastructure post-handover — from preventive maintenance and incident response to commissioning support for new capacity expansions — ensuring MEP systems perform to design intent throughout the facility's operational life.ResponsibilitiesBuild and lead the on-site engineering team responsible for MEP systems (cooling, power, UPS, generators)Own day-to-day reliability and performance of all MEP systems at the siteDevelop and maintain SOPs/MOPs/EOPs for cooling and electrical operations, aligned with facility standardsLead incident response and root-cause analysis for MEP-related outages or failuresOwn the preventive maintenance program and schedules across cooling and electrical systemsCoordinate maintenance windows and redundancy switching to minimize IT service impactManage vendor/contractor relationships for MEP maintenance and warranty service, in coordination with other teamsSupport commissioning of new MEP infrastructure and expansions (FAT/SAT, handover from construction)Ensure compliance with safety protocols and manufacturer/regulatory requirementsManage on-call rotation and emergency response coverage for engineering staffRequired experience7+ years of hands-on data center facilities/MEP engineering experience, with 3+ years in a leadership role already owning a full-scale DC Infrastructure/Operations function — this is a Head-level position, not a stepping stone into oneDemonstrated experience operating and maintaining mechanical and electrical systems (cooling, UPS, generators, switchgear) specifically in a data center environmentHands-on experience developing SOPs/MOPs/EOPs for critical facility operationsProven track record leading incident response and root-cause analysis for MEP outagesExperience managing preventive maintenance programs and vendor/contractor relationshipsExperience supporting or leading FAT/SAT and commissioning handover for MEP infrastructureExperience building and managing on-call/shift rotations for 24/7 facility coverageEnglish proficiency sufficient for international vendor and technical communicationWillingness to travel regularly to the construction/operations site in PolandNice to HaveExperience with high-density liquid-cooled (DLC) infrastructure and CDU operations (traditional HVAC/air-cooling background is fully acceptable)Uptime Institute or EPI certificationExperience managing MEP teams across multiple sitesBackground transitioning facilities from construction/commissioning into steady-state operations
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