Field Service Diesel Engine Mechanic – Heavy Engines

Location: Field-based across Ireland (travel required)
Type: Full-time, permanent
Pay: Very competitive + overtime + OEM training

About the role

We’re hiring a senior field diesel mechanic to diagnose, service and overhaul heavy-duty engines (often 1,000+ hp) used across cranes and related applications. This is not a factory role—it’s hands-on field service with autonomy, customer interaction, and problem solving.

Key responsibilities

• Diagnose, repair and overhaul heavy diesel engines (mechanical/electronic fuel systems, turbocharging, cooling, lubrication, aftertreatment).
• Execute planned maintenance, rebuilds and post-repair commissioning.
• Use OEM diagnostics and service literature; produce accurate service reports.
• Advise customers on repairs, parts and preventive actions; aim for first-time fix.
• Work safely on active sites; manage tools, van stock and parts returns.

Training & development (Germany – OEM)

• OEM engine training in Germany via specialist academy programmes.
• Access to running engine test cells and simulators for advanced diagnostics.
• Progressive modules aligned to large industrial/mobile powertrains.

What you’ll need (must-haves)

• Qualified Heavy Diesel Mechanic/Fitter (Irish-recognised or equivalent).
• Strong field background with heavy engines—ideally one or more of: Cummins, Liebherr, Caterpillar, MTU, Detroit.
• Advanced diagnostics/troubleshooting (mechanical & electronic).
• Excellent English and customer-facing communication.
• Full, clean driving licence; flexibility for nationwide travel and overtime/call-outs.

Nice to have

• OEM training/credentials on any of the brands above.
• Experience on crane powertrains or large industrial/mobile plant.
• Safe Pass/CSCS, MEWP, Rigging/Slinging, Working at Height.

What’s on offer

• Very competitive compensation with overtime.
• OEM training in Germany with exceptional engineers; clear upskilling path.
• Strong, well-financed employer with a long-term commitment to quality and support.