Data Centre Supervisor Location: Madrid Sector: Critical Infrastructure / Data Centre Operations Working 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 requirements Key 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 processes Background & Experience Essential 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 incidents Desirable HVAP or working towards HV authorisation Fire marshal or first aid certification Knowledge of permit to work systems, risk assessments and asset management tools Personal 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 incidents Additional 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