Mobile HVAC Engineer (Nights) - London Underground StationsPosition Type: Temporary / Ongoing ContractLocation: Mobile across London Underground Station NetworkPay Rate: 25.00 - 28.00 per hour (Weekly pay)Shift Pattern: 4 on, 4 offHours: 19:00 - 07:00 (12-Hour Night Shifts)Start Date: Immediate / ASAPAbout the RoleWe are recruiting an experienced Mobile HVAC Engineer for an ongoing temporary night-shift contract covering London Underground tube stations across Greater London.Working a steady 4-on, 4-off night shift rota (7:00 PM - 7:00 AM), you will be responsible for carrying out scheduled maintenance, inspections, and emergency repairs on critical heating, ventilation, and air conditioning systems across station plant rooms, back-of-house areas, and operational spaces during track/station engineering hours.Key ResponsibilitiesUndertake planned preventative maintenance (PPM) and reactive repairs on HVAC/R plant across multiple tube stations.Service and troubleshoot VRF/VRV systems, split systems, chilled water systems, and air handling units (AHUs).Carry out refrigerant leak checks, recoveries, and logbook updates in strict accordance with F-Gas regulations.Attend to urgent environmental and mechanical breakdowns across assigned network locations.Comply fully with London Underground infrastructure protocols, site access procedures, and health and safety standards.Candidate RequirementsEssential:Technical Qualification: NVQ / City and Guilds Level 2 or above in Refrigeration ..... full job details .....