As Commissioning Engineer - Cooling Specialist , you will be responsible for supporting the commissioning and start-up activities of Cooling Distribution Units and associated hydraulic, electrical and control systems . Your main responsibilities will include: Perform pre-commissioning inspections of primary and secondary piping, hydraulic components and electrical connections. Verify correct installation, wiring, termination, mounting and overall mechanical integrity of the equipment. Confirm completion and adequacy of system flushing and perform visual inspections to identify defects, leaks or installation issues. Perform commissioning and start-up checks on primary and secondary cooling circuits . Verify electrical power systems including voltage, phase sequence, grounding, protection devices and power supply integrity . Check the installation, calibration and operational readiness of sensors and control devices . Support initial filling, flushing, air purging and hydraulic balancing of the secondary loop. Test pumps and Variable Frequency Drives (VFDs) and verify rotation, control response and operational performance. Perform functional testing of control sequences, alarms, safeties and interlocks . Carry out communication testing through BACnet / Modbus and verify correct integration with the Building Management System (BMS) . Support Site Acceptance Testing (SAT) of the Cooling Distribution Units. Monitor CDU operation and system performance through the Human Machine Interface (HMI) . Record operating parameters including temperatures, pressures, flow rates, pump status, valve positions and alarms. Extract available event and alarm logs and contribute to the preparation of commissioning and test reports. Provide onsite standby support and immediate troubleshooting in case of abnormal operating conditions or system alarms.