An experienced Site Electrical Test Engineer is required to support on-site testing, commissioning, and maintenance of transformers and associated equipment. This is a site-based role involving regular UK travel and occasional overseas work. Key Responsibilities Lead on-site transformer testing, commissioning, and fault diagnosis Carry out planned maintenance, repairs, and performance optimisation Ensure full compliance with RAMS, Health & Safety, and site regulations Accurately complete test documentation, reports, and certification Represent the business professionally on customer sites Travel across the UK and internationally as required Testing & Commissioning Perform electrical testing including: Insulation Resistance, HV/Applied Voltage, and HV Withstand Transformer Ratio, Winding Resistance & SFRA HV/LV CT testing and vector group verification Bushing testing (Tan Delta) and tapchanger checks Conduct protection and functional testing : Relays (Buchholz, Oil Surge, Rupture Detect...