Generator Workshop Engineer

Kohler (Rehlko); Heanor; On-site; GBP 25,000 - 39,000; Full time

Benefits offered by this job

Competitive hourly rates

Overtime after 40 hours

33 days holiday (including bank)

Training and upskilling opportunities

Private healthcare

Death in service benefit

Excellent long-term progression

Employee Assistance Programme

Job summary

Rehlko is seeking a Workshop Generator Engineer to join a busy workshop and ensure diesel generators are maintained, serviced, and ready for deployment. You will diagnose faults, perform repairs, and complete routine servicing in a safety‑conscious environment.

The role requires strong mechanical and electrical capabilities, attention to detail, and a commitment to delivering high‑quality work. A full UK driving licence is preferred and overtime is available after 40 hours.

Qualifications

• Proven experience with diesel generators or similar mechanical/electrical plant.
• Strong mechanical and electrical diagnostic skills.
• Ability to read and interpret technical drawings, wiring diagrams, and service manuals.
• Knowledge of engine systems (e.g., Volvo, Scania, Perkins, MTU) is advantageous.
• Knowledge of control panels, alternators, and generator control systems (e.g., Deep Sea, ComAp) is desirable.
• Strong understanding of workshop safety and compliance requirements.

Responsibilities

• Carry out servicing, maintenance, and repair of diesel generators ranging from small sets to large multi‑megawatt units.
• Diagnose mechanical and electrical faults using appropriate tools, equipment, and diagnostic software.
• Complete pre‑hire inspections, ensuring all equipment meets Rehlko's quality and safety standards.
• Prepare generators, distribution equipment, and associated components for deployment to customer sites.
• Conduct load bank testing, functional checks, and performance verification.
• Maintain accurate service records, job sheets, and compliance documentation.
• Ensure all workshop activities are completed in line with ISO9001, ISO14001, and ISO45001 procedures.
• Support continuous improvement by identifying opportunities to enhance reliability, efficiency, and preparation standards.
• Assist with workshop organisation, housekeeping, and stock control.
• Work collaboratively with the wider engineering and operations teams to ensure smooth workflow and timely delivery.
• Adhere to all health, safety, and environmental requirements within the workshop environment.

Skills

Diesel generator experience

Mechanical & electrical diagnostics

Reading drawings & wiring diagrams

Engine systems knowledge

Control panels & generator systems

Health & safety compliance

Tools

Diagnostic software

Job description

Why Work at Rehlko

Our work is guided by our purpose: creating an energy-resilient world for a better future. This purpose embodies the legacy we bring, with more than 100 years as the global leader in energy resilience, delivering solutions critical to sustain and improve life.

Our teams have the opportunity to provide a critical resource - energy - that ensures safety, security, and independence for people around the world. Our team members are focused on pushing boundaries, continuing to innovate in an ever-changing landscape, and keeping up with the pace required to create solutions for today's world demands.

Our product range includes engines, generators, power conversion, UPS systems, EV components and electrification solutions, microgrid controls and management, and clean energy solutions that serve a broad spectrum of OEM, residential, industrial, and commercial customers. At Rehlko, you have the freedom to identify, create, and deliver solutions - large and small - that help people and communities thrive in the moments that matter.

At Rehlko, our team members are the essential energy that powers our organization's success. We are committed to fostering a safe and sustainable work environment where safety is everyone's responsibility. We empower every team member to actively participate in our Zero Is Possible safety culture by encouraging open communication, proactively reporting hazards, following protocols, and suggesting improvements. Join us in creating an energy resilient world for a better future!

What We Offer

• Competitive compensation and benefits
• Work-life flexibility
• Recognition and rewards
• Development and career opportunities
• A safe and inclusive workplace

Why You Will Love this Job

The Role

As a Workshop Generator Engineer, you will play a key role in ensuring our fleet is maintained, serviced, and prepared for deployment. Working within a busy workshop environment, you will diagnose faults, carry out repairs, complete routine servicing, and ensure all equipment meets Rehlko's quality, safety, and compliance standards before leaving the depot.

This is a hands‑on technical role requiring strong mechanical and electrical capability, attention to detail, and a commitment to delivering high‑quality work.

Key Responsibilities

• Carry out servicing, maintenance, and repair of diesel generators ranging from small sets to large multi‑megawatt units.
• Diagnose mechanical and electrical faults using appropriate tools, equipment, and diagnostic software.
• Complete pre‑hire inspections, ensuring all equipment meets Rehlko's quality and safety standards.
• Prepare generators, distribution equipment, and associated components for deployment to customer sites.
• Conduct load bank testing, functional checks, and performance verification.
• Maintain accurate service records, job sheets, and compliance documentation.
• Ensure all workshop activities are completed in line with ISO9001, ISO14001, and ISO45001 procedures.
• Support continuous improvement by identifying opportunities to enhance reliability, efficiency, and preparation standards.
• Assist with workshop organisation, housekeeping, and stock control.
• Work collaboratively with the wider engineering and operations teams to ensure smooth workflow and timely delivery.
• Adhere to all health, safety, and environmental requirements within the workshop environment.

The Person

• Proven experience working with diesel generators or similar mechanical/electrical plant.
• Strong mechanical and electrical diagnostic skills.
• Ability to read and interpret technical drawings, wiring diagrams, and service manuals.
• Experience with engine systems (e.g., Volvo, Scania, Perkins, MTU) is advantageous.
• Knowledge of control panels, alternators, and generator control systems (e.g., Deep Sea, ComAp) is desirable.
• Strong understanding of workshop safety and compliance requirements.
• Ability to work independently and as part of a team.
• High attention to detail and a commitment to quality.
• Full UK driving licence preferred.

What We Can Offer You

• Competitive hourly rates (depending on experience).
• Overtime after 40 hours
• 33 days holiday (including bank holidays).
• Training and upskilling opportunities.
• Private healthcare.
• Death in service benefit.
• Excellent long-term progression opportunities.
• Access to our outstanding Employee Assistance Programme

About Us

Rehlko proudly offers a rich history steeped in creativity and commitment to our associates and communities, along with competitive benefits and compensation. Our Purpose-Creating an energy resilient world for a better future-and Values: Curiosity, Trust, Pace, and Ex