IDC HVAC Supervisor

About the role

This is an HVAC operations and maintenance role for large data centers or server rooms. You will be responsible for operating, maintaining, and troubleshooting precision cooling systems, chiller units, cooling towers, and related equipment in Tier 3/Tier 4 data center environments. You will manage airflow, temperature, humidity control, and respond to emergency cooling issues, working on-site in Thailand with availability for holidays and nights.

Key responsibilities

• Operate and maintain precision air conditioners, air-cooled row-level air conditioners, air-cooled base station air conditioners, and constant temperature and humidity units
• Manage chiller units, cooling towers, plate heat exchangers, pumps, header and riser manifolds, piping valves, softening/water treatment systems, and central air conditioning chilled water source systems
• Monitor and manage data center hot and cold aisle containment, airflow management, temperature and humidity control, pressure differential monitoring, and dew point monitoring
• Handle common issues such as localized overheating in the server room, airflow short-circuiting, excessively high or low humidity, and condensation
• Independently troubleshoot and resolve issues such as air conditioner not cooling, compressor failure, fan malfunction, water leakage, alarms, and temperature control failure
• Perform refrigerant charging, leak detection, condenser filter cleaning, bearing maintenance, piping care, and daily inspections
• Perform preventive maintenance, quarterly/annual inspections, and inventory management of spare parts
• Operate BA building automation and environmental monitoring systems, interpret point data, alarms, and trend curves
• Write SOPs, MOPs, EOPs, operational procedures, shift logs, fault reports, and maintenance records
• Perform outdoor cooling tower inspection tasks

About you

• Associate degree or higher in HVAC, Refrigeration and Air Conditioning, Building Environment and Energy, Mechanical and Electrical Equipment, Refrigeration Engineering, or related fields
• 3+ years of HVAC operations and maintenance experience in large data centers or server rooms
• Familiar with the complete operational and maintenance procedures for Tier 3/Tier 4 data center hot and cold aisles, precision air conditioning, and cooling source systems
• Understand the principles and daily maintenance of air-cooled, water-cooled, indirect evaporative cooling, and all-air systems
• Understanding of HVAC system diagrams, piping layouts, and equipment arrangement drawings
• Familiar with basic electrical and plumbing knowledge, capable of coordinating with electrical operations for shutdowns and maintenance procedures
• Refrigeration and Air Conditioning Operator Certificate, HVAC Maintenance Technician Certificate, Low-Voltage Electrician Certificate required
• Proficient in technical English reading and writing, capable of basic spoken communication, able to understand English equipment manuals and alarms
• Strong safety awareness, strictly adhering to data center regulations regarding open flames, water-related activities, lockout/tagout procedures, and operational safety protocols
• Resilient under pressure with rapid emergency response; capable of quickly addressing sudden leaks and high-temperature alerts