Data Centre SupervisorLocation: MadridSector: Critical Infrastructure / Data Centre OperationsWorking Pattern: Monday – Friday (with out-of-hours cover as required)An established data centre operator is seeking a Data Centre Supervisor to support the safe, resilient and efficient operation of a mission-critical facility supporting high-profile customers. This is a hands-on engineering leadership role, ideal for someone who understands what “best in class” operational delivery really looks like.Reporting into the Data Centre Manager, you will take responsibility for the day-to-day oversight of electrical and mechanical systems, third-party service providers, and operational processes, with a clear focus on uptime, safety, and service excellence.The Role- Support overall responsibility for the site’s critical electrical and mechanical infrastructure, from both a preventative and reactive maintenance perspective- Act as a key point of contact for customers during day-to-day operations and incident escalation- Oversee and challenge third-party maintenance providers, ensuring PPMs, reactive works and service repairs are completed to standard and on time- Monitor and respond to BMS and critical alarms, supporting diagnostics, escalation and root cause analysis- Review, develop and improve SOPs, MOPs and EOPs to reduce human error and protect uptime- Ensure all change management activities are carried out in line with process, including review of RAMS, permits and contractor competency- Provide cover for the Data Centre Manager during periods of absence- Support a strong safety-first culture, ensuring compliance with all site, company and client QHSE requirementsKey Technical Exposure- HV/LV electrical systems, UPS, generators, ATS/STS, PDUs- Cooling systems including chillers, CRAHs, AHUs and associated controls- BMS and electrical power monitoring systems- Critical incident and change management processesBackground & ExperienceEssential- Recognised electrical or mechanical qualification- Proven experience within data centre operations or other critical environments- Strong understanding of critical infrastructure systems- Experience supervising contractors or acting in a shift-lead / supervisory capacity- Confident communicator in Spanish and English (written and verbal)- Calm, structured decision-making approach, particularly during incidentsDesirable- HVAP or working towards HV authorisation- Fire marshal or first aid certification- Knowledge of permit to work systems, risk assessments and asset management toolsPersonal Attributes- Positive, solutions-focused and delivery-driven- Comfortable leading by example in a live operational environment- Detail-oriented with a strong sense of ownership and accountability- Able to remain composed under pressure and during outages or incidentsAdditional Information- Participation in an out-of-hours call-out rota is required- Flexibility to support planned shutdowns, emergencies and holiday cover- Occasional travel to other European facilities for training may be required- Successful candidates will be subject to background checks in line with local regulations