This is an exciting opportunity to join a brilliant team to support the continued growth of an established family-owned business in Leeds.
We are seeking an experienced Site Test Engineer to join great Operations team. This role is primarily site-focused, requiring regular travel across the UK and, where required, overseas.
The Role:
Reporting to the Head of Site Services, you will be responsible for the on-site testing, commissioning and maintenance of transformers and associated equipment.
This is a hands-on role combining mechanical, electrical, and testing responsibilities, requiring a high level of technical competence, safety awareness, and the ability to work independently on customer sites.
Key Responsibilities
Lead and carry out on-site transformer testing and commissioning activities
Perform mechanical assembly and installation of transformers and associated equipment in line with Transformer testing procedures
Carry out fault finding, diagnostics, and repair work
Undertake transformer maintenance activities
Read and interpret technical drawings and schematics
Complete all test documentation and reports accurately
Ensure all work is carried out in line with site RAMS and Health & Safety requirements
Represent the business professionally when working with customers and stakeholders
Travel regularly to sites across the UK and overseas as required
Transformer Testing Scope
Power Transformers
Insulation Resistance
HV Withstand Testing
Transformer Ratio Testing
SFRA
Winding Resistance Testing
HV & LV CT Testing
Bushing Testing including Tan Delta
Tapchanger Checks
Buchholz Relay Alarm and Trip Testing
OTI and WTI Calibration
PRD, MOG, Air Bag Relay and Oil Surge Relay functional checks
Marshalling Box testing
Cooling system checks including fans
Rupture Detector Relay testing
Impact Recorder results review
Oil sampling including pre- and post-circulation analysis
Ashridge setup
Distribution Transformers
Insulation Resistance testing
Applied Voltage / HV Withstand testing
Winding Resistance testing
Transformer Ratio testing
Vector Group verification
HV and LV CT testing
Marshalling and control wiring checks
Functional testing of auxiliary equipment including:
- Breathers
- OTI and WTI
- Magnetic Oil Gauge
- Buchholz relay
- Pressure Relief Device
- Pressure and vacuum gauges
Additional Site Responsibilities
Mechanical Assembly
Installation of radiators, conservators, and cooling systems
Mounting HV and LV bushings and tap changers
Gasketing and sealing to prevent oil leaks
Installation of marshalling boxes, cable tray, and accessories
Torque checking of fixings
Electrical Assembly
Termination of internal and external wiring
Installation and wiring of control and protection devices
Performing functional checks on alarms and trips
Maintenance and Refurbishment
Oil draining, filling, and filtration support
Replacement of gaskets, seals, and breathers
Inspection and upgrading of transformer accessories
Oil sampling for analysis
Site Safety and Compliance
Setting up safe working areas and barriers
Following RAMS and site safety rules
Use of lifting and rigging equipment
Reporting hazards, near misses, and incidents
Knowledge and Experience
Proven experience in electrical testing within an engineering environment
Demonstrable experience in transformer testing and commissioning (essential)
Experience working in site-based roles and live environments
Relevant electrical qualifications and strong knowledge of regulations
Ability to read and interpret electrical drawings and schematics
Strong understanding of Health and Safety and safe systems of work
Methodical approach with strong attention to detail
Good communication skills and ability to work independently on site
Flexible and willing to travel as required
Salary and Benefits
Competitive salary (depending on experience)
25 days holiday plus bank holidays
Company profit share scheme (paid quarterly)
Healthcare cash plan and Employee Assistance Programme
EV salary sacrifice scheme and EV charging on site in Leeds
Pension scheme
Job Types: Full-time, Permanent
Experience:
Working on site fitting distribution and power transformers: 1 year (required)
Working within a engineering environment: 1 year (required)
The ability to understand mechanical and schematic drawings : 1 year (required)
Health & Safety and conducting risk assessments : 1 year (required)
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