Validation and Verification (V&V) technician

On Track Group

📍 Cardiff, Wales, United Kingdom

full time Vehicle and Mobile Equipment Mechanics, Installers, and Repairers Posted June 18, 2026

Job Description

Test Train Rider – New Fleet Introduction

A field-based, safety-critical role riding new trains across the network during trial running and early passenger service, acting as the on-board eyes and ears for the fleet introduction programme.

What you'll be doing:

  • Riding newly introduced trains in service across the network, observing and recording how the fleet performs against expected standards
  • Witnessing test carried out by OEM Engineers or third parties suppliers.
  • Monitoring key systems on board — traction, braking, doors, HVAC, PIS, CCTV, and cab equipment — and logging any anomalies or deviations
  • Reporting faults, deficiencies, and observations accurately into the fleet management system to support the wider engineering and commissioning team
  • Acting as the on-train point of contact between train crew, depot engineers, network control, and the OEM's technical representatives
  • ...