Shift Engineer

Depot Engineer

About Rehlko

Rehlko is a global leader in power and energy resilience. Formerly known as Kohler Energy, Rehlko has continually shaped the way the world powers homes, industries, and critical infrastructure.

As part of this exciting growth, WB Power Services has now become Rehlko. This transition marks our evolution into an OEM, allowing us to design, build, and deliver complete power solutions from the ground up. It’s a transformation that strengthens our technical capability, expands our product range, and deepens the value we offer to our clients.

We retain the strong, values-led foundation of a family business, while being empowered by the scale, resources, and global vision of Rehlko. For our people, this means new opportunities, bigger projects, and a chance to shape the future of resilient, sustainable energy.

We're looking for a Generator Service Engineer to support critical power infrastructure within data center environments. Working predominantly from fixed customer sites, you'll play a key role in maintaining standby power systems, ensuring equipment reliability and maximum uptime across mission-critical facilities.

The Role

• Carry out planned and reactive maintenance on diesel generators (20–1500kVA).
• Diagnose faults and carry out breakdown repairs.
• Provide occasional field support, using a company vehicle.
• Collaborate with the service coordination team to ensure efficient scheduling.
• Maintain accurate records using our in-house system.
• Collect parts from local suppliers as required.
• Ensure all work is carried out safely and in line with H&S and quality standards.

This is a 5 in 7 contract, primarily covering weekday work but will include weekend work on a rota basis to support business-critical operations

What We’re Looking For

• Mechanical or electrical background (NVQ Level 3 or time served).
• Hands-on experience with diesel generators
• Comfortable diagnosing and resolving faults independently.
• Strong communication skills – able to liaise confidently with customers and colleagues.
• Full UK driving licence (max 6 points). Towing experience is a bonus – training provided.
• Ability to complete risk assessments and follow safe working procedures.

What You’ll Get

• £35,000 – £42,800 basic salary (depending on experience)
• Overtime paid at time and a half after 40 hours
• Company vehicle for work use (from depot)
• 25 days holiday + bank holidays
• Private healthcare
• Death in service cover
• Outstanding employee assistance programme
• Comprehensive systems training and ongoing support

Job Type: Full-time

Pay: £15.17-£20.59 per hour

Benefits:

• Company pension
• Free parking
• Life insurance
• On-site parking
• Private medical insurance
• Sick pay

Licence/Certification:

• Driving Licence (required)

Work Location: In person