Data Centre Shift Engineer Location: Croydon, South London Salary: Up to £60,000 + Benefits Shift Pattern: Continental / Shift Based Environment: Mission-Critical Data Centre The Opportunity We are recruiting an experienced Data Centre Shift Engineer / Critical Facilities Engineer to join the engineering team at a major financial-services data centre in Croydon. Working as part of an established shift team, you'll be responsible for the day-to-day operation, maintenance and reliability of critical electrical and mechanical infrastructure, ensuring the facility maintains the highest levels of uptime and resilience. This is a hands-on engineering position suited to someone with experience in data centres, critical environments or similarly high-availability facilities. Key Responsibilities * Operate and maintain critical electrical and mechanical infrastructure within a live data centre. * Carry out planned preventative and reactive maintenance across: * HV/LV electrical distribution * UPS systems * Generators * Switchgear * Critical cooling / HVAC * CRAC/CRAH systems * BMS and associated infrastructure * Monitor plant and equipment to ensure maximum availability and resilience. * Respond to alarms, faults and critical incidents, escalating where required. * Carry out fault finding and first-line diagnosis across electrical and mechanical systems. * Work under site permit-to-work and safe systems of work. * Support HV/LV switching and isolation activities alongside authorised personnel. * Review and work in accordance with RAMS, permits and operational procedures. * Coordinate and supervise specialist subcontractors completing works on site. * Complete shift reports, maintenance records and technical documentation. * Ensure all work meets relevant H&S, compliance and operational standards. * Support continuous improvement and reliability initiatives across the facility. What We're Looking For * Strong electrical or mechanical engineering background with relevant technical qualifications. * Previous experience within data centres, critical environments or other mission-critical facilities is highly desirable. * Good knowledge of critical infrastructure including UPS, generators, LV distribution and switchgear. * Understanding of HV systems would be advantageous. * Working knowledge of HVAC, cooling systems and BMS. * Experience with planned and reactive maintenance. * Strong fault-finding and problem-solving capabilities. * Good understanding of permits, isolations, RAMS and safe systems of work. * Comfortable working within a shift environment where uptime, safety and resilience are critical. Package Up to £60,000 basic salary + comprehensive benefits package An excellent opportunity for a Data Centre Shift Engineer to join a high-profile critical environment in Croydon, working with sophisticated electrical and mechanical infrastructure and offering strong opportunities for continued technical development and progression