Keyplant Automation Ltd

Diesel Mechanic / Fitter

St Helens WA9 4XB

Key information

Pay
Salary not listed
Hours
Full-time
Contract
Permanent
Workplace arrangement
On-site
Posted date
22 Oct 2026
Closing date
21 Nov 2026

About this role

Diesel Mechanic / Fitter

Location

Bold, St Helens

Job Type

Full Time

Working Hours

Monday - Thursday 08:00 - 17:00

Fridays - 08:00 - 15:30

Salary

Competitive, dependent on experience, with overtime opportunities available.

About Us

Key Plant Welderentals is a leading provider of specialist welding and fabrication rental equipment, supporting major industrial projects throughout the UK and internationally.

Our fleet includes welding generators, diesel power generation equipment, welding equipment, induction heating systems and welding automation equipment. We are committed to delivering reliable, high-quality equipment backed by industry-leading service and support.

The Role

We are looking for a skilled Diesel Mechanic / Fitter to join our workshop team in Bold, St Helens.

The primary focus of this role is the servicing, maintenance, fault-finding and repair of our diesel-powered welding generators and power generation equipment. The successful candidate will also support wider workshop activities as required.

As a growing business, we are committed to investing in our people and providing opportunities for training, development and career progression.

Key Responsibilities

Diagnose, repair and service diesel generators and power generation equipment.

Carry out preventative maintenance and inspections.

Troubleshoot mechanical, hydraulic and electrical faults.

Test, inspect and prepare equipment for rental and sale.

Complete service records and workshop documentation.

Support customer requirements both in the workshop and occasionally on-site.

Assist with stock control and workshop housekeeping.

Operate forklifts and lifting equipment where authorised.

Essential Requirements

Minimum 3 years' experience working on diesel engines, generators, plant or heavy equipment.

Strong mechanical fault-finding skills.

Experience servicing power generation equipment.

Good understanding of electrical systems and diagnostics.

Ability to work independently and as part of a team.

Desirable

Generator manufacturer training or experience.

NVQ Level 3 in Mechanical Engineering or similar.

Field service experience.

Benefits

Company pension.

Free on-site parking.

Overtime opportunities.

Ongoing training and development.

Career progression within a growing business.