Aiman nul Haqim

• Responsible for end-to-end delivery of Vertiv Thermal Management solutions, covering design support, installation, commissioning, operation, troubleshooting, and preventive & corrective maintenance within mission-critical and hyperscale data center environments. • Specialized in Liquid Cooling technologies, with strong hands-on engineering experience in Vertiv XDU (Coolant Distribution Unit), supporting high-density, AI and HPC workloads requiring precise thermal control, flow management, and system stability. • Successfully delivered and supported a hyperscale data center site up to 98MW in Sedenak, ensuring compliance with OEM standards, site safety requirements, and performance KPIs during deployment and operation phases. • Engineer-in-charge for a wide portfolio of Vertiv products, including Precision Air Conditioning (PAC), Chilled Water Systems, Liquid Cooling Solutions, and Monitoring & Control Systems. • Perform fault diagnosis, root cause analysis (RCA), system optimization, and performance monitoring to maximize uptime, energy efficiency, and long-term reliability of critical infrastructure. • Provide on-site engineering support, coordinating with project teams, contractors, and end users to deliver scalable, reliable, and future-ready cooling solutions.

Removing and installing residential and commercial HVAC units Diagnosing and troubleshooting residential and commercial HVAC systems Performing routine and preventative maintenance for the clients Creating cost estimates for the clients Testing and commissioning residential and commercial units Preparing detailed reports of work done at various job sites Communicating well with clients to ensure client satisfaction. Operation and monitoring of UPS and HVAC systems to ensure uninterrupted functionality Preventive and corrective maintenance of AHU and CRAC systems

Oversaw a team of three skilled technicians to guarantee timely and efficient job delivery for our clients. Designed, implemented, and installed a residential air conditioning system, which included identifying the unit position, suitable horsepower, piping route, power supply unit, and outdoor unit location. Diagnosed and rectified refrigeration problems, including parts replacement for residential and commercial refrigeration units/systems. Guided the technicians in fixing and maintaining HVAC and recovery at the site. Ensure the staff's compliance with the Occupational Safety and Health requirements. Sourced, planned, and purchased parts for the air conditioning and refrigeration troubleshooting and maintenance. Prepared the quotation with the commercial terms and conditions for potential clients.

Rewired electricity wiring for residential based on client’s requirements Installed and serviced residential air-conditioned units Identified and repaired faulty fridges and washing machines