• Minimum 5-7 years of practical HVAC maintenance experience in commercial high-rise buildings, hotels, industrial facilities, hospitals, malls, or similar large facilities.
  
• Hands-on experience with VRV/VRF systems, DX systems, chillers, ventilation systems, and HVAC troubleshooting is mandatory.
  

Education

• National Diploma (ND) or Higher National Diploma (HND) in Mechanical Engineering, Refrigeration & Air Conditioning, or related technical field.
  
• Technical apprenticeship or vocational HVAC training completed.
  

• Report for duty as per shift schedule and attend daily toolbox meetings led by the HVAC Supervisor.
  
• Carry out preventive and corrective maintenance on HVAC systems including VRV/VRF systems, DX split/package units, chillers, AHUs, FAHUs, FCUs, ventilation and exhaust systems, pressurization systems, pumps, and associated controls.
  
• Perform Planned Preventive Maintenance (PPM) activities including filter cleaning/replacement, coil cleaning, drain flushing, blower inspection, belt inspection/replacement, lubrication, refrigerant pressure checks, electrical tightening, and operational parameter monitoring.
  
• Troubleshoot HVAC system faults related to refrigeration, airflow, electrical controls, communication systems, sensors, compressors, fans, pumps, thermostats, and actuators.
  
• Attend and respond to tenant complaints, emergency breakdowns, and after-hours HVAC call-outs as rostered.
  
• Monitor and record operational parameters including suction/discharge pressure, temperature, superheat/subcooling, current/voltage, chilled water temperature, airflow abnormalities, and alarm conditions.
  
• Carry out refrigerant-related works including leak testing, vacuuming, refrigerant charging/recovery, pressure testing, brazing, and piping repair.
  
• Assist in troubleshooting VRV/VRF communication and operational faults using service checker software or diagnostic tools where applicable.
  
• Conduct routine inspection of HVAC plant rooms, FCU/AHU rooms, risers, ventilation areas, and mechanical spaces; report abnormalities immediately.
  
• Ensure proper housekeeping of HVAC equipment rooms and maintenance areas including cleanliness, labeling, accessibility, and safety compliance.
  
• Monitor HVAC system performance and immediately report abnormal conditions such as low cooling performance, compressor short cycling, refrigerant leaks, abnormal noise/vibration, high pressure trips, low suction conditions, airflow imbalance, and water leakage.
  
• Assist in air balancing, duct inspection, damper adjustment, and ventilation troubleshooting works.