Bureau Technical Services (BTS) is seeking an Electrical Commissioning Engineer to join a major data centre project in Zaragoza, Spain. This position will support the planning, scheduling, coordination and execution of full lifecycle commissioning activities across critical data centre facilities. It will also involve participation in the MEP design process, witnessing static and dynamic testing of complex electrical and control systems, and supporting systems through normal operation, maintenance and failure mode testing. Key Responsibilities: Support the full commissioning lifecycle across mission critical facilities Participate in the MEP design and commissioning process Witness and support static and dynamic testing of complex electrical and control systems Assist with operating systems in normal, maintenance and failure modes Carry out commissioning, testing, troubleshooting and maintenance of critical electrical systems and subsystems Support FAT, SAT, IST and commissioning activities across the project lifecycle Requirements: Degree in Electrical Engineering or equivalent practical experience Experience in installation, commissioning, testing, troubleshooting and maintenance of electrical distribution systems Strong knowledge of HV / MV / LV systems within mission critical environments Experience with transformers, generators, switchgear, UPS and STS systems Knowledge of electrical protection systems and power distribution infrastructure Experience with EPMS, SCADA, PLC or other control and instrumentation systems Ability to interpret raw electrical signal data and waveforms Knowledge of networks and communication systems such as BACnet, Modbus and Ethernet Experience within mission critical facilities / data centres 3+ years of commissioning experience 3+ years of data centre experience Right to work in Spain / EU work authorisation required Desirable Experience: Exposure to L2–L5 commissioning activities Experience with Integrated Systems Testing (IST) Hands-on commissioning and fault-finding experience Knowledge of load bank testing and electrical infrastructure testing procedures