Data Centre Senior Shift Technician

We are looking for aData Centre Senior Shift Technician to join the Critical Environments team at a Data Centre in Croydon. This is a key operational role within a 24/7 critical environment, responsible for ensuring business-critical systems operate safely, reliably, and in line with strict SLA and KPI requirements., * Deliver planned preventative maintenance (PPM) and reactive maintenance across mechanical and electrical systems * Maintain all critical building systems including UPS, generators, HV/LV systems, PDUs, CRAC units, and BMS * Respond to alarms, faults, and breakdowns, ensuring rapid and effective resolution * Act as an HV Authorised Person in line with contract requirements * Ensure environmental conditions (temperature & humidity) are maintained at all times * Complete all maintenance documentation, shift logs, and reports accurately and on time * Prepare and adhere to RAMS and Permit to Work systems * Supervise subcontractors, ensuring compliance with H&S and site procedures * Promote a professional image and maintain strong working relationships with client representatives * Support Shift Manager duties when required and provide shift cover as needed

Proven experience working in critical environments (data centres essential) * Strong working knowledge of generators, UPS, HVAC, BMS, and electrical distribution systems * Excellent understanding of health & safety procedures * Strong communication skills and ability to remain calm under pressure