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Validation and Verification (V&V) technician

On Track Group | Cardiff, United Kingdom | Posted June 21, 2026

Position Overview

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
  • ...

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