Master Chiller Mechanic

LotusWorks is an Engineering Services provider specializing in managing Commissioning, Construction Services, Calibration, Operations & Maintenance scopes of work within global manufacturing facilities. LotusWorks operates globally across EMEA and North America partnering with the world's leading manufacturers across the Semiconductor, Pharmaceutical & Biologics, Medical Device and Data Center sectors. Our team of Engineering and Technical professionals is immersed in cutting-edge technologies and innovations. LotusWorks is committed to a diverse and inclusive workplace, integral to our people-first approach. 

The Master Chiller Mechanic is responsible for the operation, maintenance, troubleshooting, repair, and optimization of critical chilled water and refrigeration systems supporting semiconductor manufacturing operations. This role ensures reliable and efficient performance of large-scale industrial chillers, cooling infrastructure, and associated mechanical systems in a mission-critical environment.

The ideal candidate will possess advanced knowledge of industrial HVAC, refrigeration, chilled water, condenser water, and process cooling systems, with strong troubleshooting capabilities across mechanical, electrical, refrigeration, and controls disciplines.

Responsibilities:

Operations & System Monitoring

• Operate and monitor centrifugal, screw, scroll, and reciprocating chillers supporting semiconductor facility operations.
• Monitor chilled water, condenser water, glycol, and heat recovery systems to ensure stable and efficient operation.
• Review system pressures, temperatures, flows, approach temperatures, and equipment efficiencies.
• Monitor SCADA/BMS trends, alarms, and system performance to identify abnormal operating conditions.
• Adjust operating parameters to maintain design conditions and optimize energy efficiency.
• Coordinate chiller staging, sequencing, and load balancing strategies across plant systems.
• Support seasonal startup and shutdown activities for chillers and associated utility systems.

Preventive Maintenance

• Execute OEM and site-specific preventive maintenance procedures for chillers and auxiliary equipment.

• Perform lubrication inspections and review oil analysis reports to support equipment reliability.

• Inspect, maintain, and troubleshoot:

• Compressors

• Condensers

• Evaporators

• Cooling towers

• Pumps

• VFDs

• Valves and actuators