Diesel Field Service Engineer

WB Power Services Ltd; Slough; On-site; GBP 80,000 - 100,000; Full time

Job summary

WB Power Services Ltd is hiring a Generator Service Engineer to support their expanding customer base in power generation. The role involves routine servicing, diagnostics, and collaboration with an internal team. Competitive hourly rates and training opportunities are offered within a supportive family-run business.

Benefits

Competitive hourly rate based on experience

Overtime paid after 40 hours

£200 weekly standby allowance when on-call

33 days holiday including bank holidays

Private healthcare cover

Death in service benefit

Company vehicle

Ongoing training and upskilling

Genuine long-term career progression

Qualifications

• Time-served Generator Engineer or relevant NVQ Level 3 qualification.
• Solid understanding of engines, alternators, and control systems.
• Ability to create and interpret risk assessments.

Responsibilities

• Performing routine servicing and maintenance on diesel generators.
• Diagnosing and repairing mechanical and electrical faults.
• Submitting accurate service reports and coordinating repairs.

Skills

Electrical systems

Mechanical systems

Troubleshooting

Customer communication

Education

NVQ Level 3 in a relevant discipline

Job description

WB Power Services is expanding – and we’re looking for experienced Generator Service Engineers to join our team during an exciting period of growth.

As a trusted name in power generation, we specialise in the supply, maintenance, and hire of generators across the UK. We’re proud to be a family-run business, built on strong values and a commitment to delivering the highest standards of service.

The Role
As a Generator Service Engineer, you’ll play a key role in supporting our growing customer base by:

• Carrying out routine servicing and maintenance on a variety of diesel generator sets
• Diagnosing and repairing electrical and mechanical faults
• Troubleshooting control panel and wiring issues, including component replacement
• Performing Load Banking and mains failure testing as per customer requirements
• Ordering and sourcing parts required for ongoing work
• Submitting accurate and timely service reports
• Coordinating repairs to minimise customer downtime
• Collaborating with our internal service team to ensure seamless operations

What We’re Looking For

• Time-served Generator Engineer or NVQ Level 3 qualified in a relevant discipline
• Previous generator experience is preferred but not essential
• Solid understanding of engines, alternators, control systems, and electrical components
• Experience working in a mobile/field-based engineering role is an advantage
• Flexibility to work overtime, weekends, and occasional overnight stays
• Willingness to take part in the on-call rota
• Ability to complete and interpret risk assessments
• Strong communicator – confident dealing with a wide range of customers face-to-face and over the phone
• Reliable, proactive, and able to work independently in a fast-paced environment

What We Offer

• Competitive hourly rate (based on experience)
• Overtime paid after 40 hours
• £200 weekly standby allowance when on-call around 1 in 7*
• 33 days holiday (including bank holidays)
• Private healthcare cover
• Death in service benefit
• Company vehicle
• Ongoing training and upskilling
• Genuine long-term career progression

If you’re a skilled engineer looking for a new challenge in a forward-thinking, supportive business – we’d love to hear from you.