Site Electrical Test Engineer

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 requiredTesting & 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 Detector)
OTI/WTI calibration and auxiliary equipment (PRDs, gauges, breathers)
Complete system checks:
Cooling systems, marshalling boxes, and control wiring
Oil sampling/analysis, impact recorder reviews, Ashridge setupInstallation & Assembly

Carry out mechanical installation of transformers and components:
Radiators, conservators, cooling systems
Bushings, tap changers, gaskets, seals
Complete electrical installation work:
Wiring, termination, and control/protection systems
Marshalling boxes and cable systems
Perform functional checks on alarms, trips, and protection systemsMaintenance & Refurbishment

Support oil management (draining, filling, filtration, sampling)
Replace and upgrade gaskets, seals, and transformer accessories
Inspect and maintain transformer components to ensure reliabilitySite Safety & Operational Excellence

Establish safe working areas, barriers, and lifting operations
Operate lifting and rigging equipment safely
Identify and report hazards, incidents, and near misses
Interpret technical drawings and schematics to guide workBeneficial Skills / Experience:

Proven experience in electrical testing within engineering environments
Strong background in transformer testing and commissioning
Experience in site-based/live environments
Relevant electrical qualifications and regulatory knowledge
Ability to read and interpret drawings and schematics
Strong understanding of Health & Safety practices
Detail-oriented with the ability to work independently
Flexible with travel requirementsAdditional Details:

Competitive salary (DOE)
25 days holiday + bank holidays
Quarterly profit share scheme
Healthcare cash plan & Employee Assistance Programme
EV salary sacrifice scheme
Pension