Rolling Stock Fitter – Technician

Company: Rullion Managed Services
Apply for the Rolling Stock Fitter – Technician
Location: Cardiff
Job Description:

Rolling Stock Fitter (C4 Technician)

Location: Cardiff

Contract Type: Inside IR35

Rate: £33.00 per hour (Umbrella)

Duration: 3-6 months initially, with potential for extension

Positions Available: 3

Hours: 36 hours per week (Day & Afternoon Shifts)

The Opportunity

We are currently recruiting for several experienced Rolling Stock Fitters to support a major rolling stock overhaul programme based in Cardiff.

This is an excellent opportunity to join a skilled maintenance team working on the overhaul and refurbishment of a fleet of diesel multiple units. The programme involves the overhaul of 18 units with a planned 20-day turnaround per vehicle.

Essential Requirements

  • NVQ Level 3, Apprenticeship, or equivalent qualification in a relevant mechanical, engineering, or rolling stock discipline
  • Proven rolling stock maintenance, overhaul, or heavy maintenance experience
  • Demonstrable C4 competency across the majority of the activities listed below

C4 Experience Required

  • Autocoupler removal and refit
  • Intermediate Bar Coupler removal and refit
  • Spring Box Assembly work
  • Gangway removal and refit
  • Gangway Flexi removal and refit
  • Valve change-outs
  • Bogie disconnection
  • Centre Pivot / Pedestal removal and refit
  • Hydraulic reservoir and hose removal and refit

Key Responsibilities

  • Carrying out mechanical overhaul, maintenance, and refurbishment activities
  • Working to engineering standards, specifications, and maintenance instructions
  • Ensuring all work is completed safely and in accordance with quality requirements
  • Supporting the delivery of overhaul programmes to strict timescales
  • Completing all associated documentation accurately and on time

What’s on Offer?

  • £33.00 per hour (Umbrella)
  • Long-term contract opportunity with extension potential
  • Immediate starts available
  • Opportunity to work on a significant rolling stock overhaul programme
  • Stable shift pattern with consistent hours

If you have the relevant C4 experience and rolling stock qualifications, we’d be keen to hear from you.

Rullion celebrates and supports diversity and is committed to ensuring equal opportunities for both employees and applicants.

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Posted: July 6th, 2026