Mechanical Fitter

Mechanical Technician – Rolling Stock / Diesel Engines

Location: Ardwick Depot
Contract: 6 Months +
IR35 Status: Outside IR35
Shift Pattern: 4 on / 4 off nights 
Start Date: Monday 28th September 2026
Positions Available: 4

Infinitive Resources are currently recruiting for 4 experienced Level 3 Mechanical Technicians to support a long-term rolling stock project in the North West.

This role will be heavily focused on the maintenance, fault finding, repair and replacement of diesel engines and associated mechanical systems on rolling stock.

Key responsibilities

• Carrying out planned and reactive maintenance on diesel-powered rolling stock.
• Completing Vehicle Maintenance Instructions (VMIs) and scheduled maintenance activities.
• Fault finding and diagnosing issues on diesel engines and associated systems.
• Repairing and replacing defective engine and mechanical components.
• Carrying out mechanical inspections and identifying defects.
• Supporting engine servicing, maintenance and component change-outs.
• Working on associated systems including cooling, fuel and lubrication systems.
• Reading and following engineering drawings, maintenance instructions and technical documentation.
• Completing maintenance and engineering records accurately.
• Ensuring all work is completed in line with required safety and quality standards.
• Supporting the timely return of vehicles to service.
• Working closely with technicians, engineers and operational teams to maintain fleet availability.

Applicants must have:

• Level 3 Mechanical Engineering qualification or equivalent.
• Previous mechanical experience within the rolling stock industry.
• Strong hands-on experience working with diesel engines.
• Experience carrying out diesel engine maintenance, servicing and fault finding.
• Experience with VMIs and planned rolling stock maintenance.
• Strong mechanical fault-finding and diagnostic skills.
• Experience repairing and replacing mechanical components.
• Ability to work from technical instructions and engineering documentation.

If you are an experienced Rolling Stock Mechanical Technician or strong diesel engine maintenance and fault-finding experience, please apply with an up-to-date CV for immediate consideration.