Expert ECE B - COSMOS Project - Transmanche F/M/X

Eurostar operates several high-speed train fleets capable of running across multiple countries and has announced the acquisition of new trainsets expected in the early 2030s. Maintaining a fleet with high levels of safety, reliability, availability, and regulatory compliance—particularly with EU Commission Regulation 2019/779 on the certification of Entities in Charge of Maintenance (ECM)—is a major challenge.

As part of its development, the COSMOS project was launched in January 2026 to replace legacy systems with a new CMMS (Computerized Maintenance Management System) and modernized maintenance processes recently deployed by SNCF for its high-speed fleet. Several SNCF entities will contribute to the COSMOS project by delivering services on behalf of Eurostar.

The ECE B COSMOS Transmanche Expert will be the business and IT reference for the new systems to be deployed by the project for Eurostar, concerning the Transmanche fleet.

Your missions:

• Being the point of reference for the new ECE B processes and the IT systems that support them, including drafting the target processes.
• Acting as the reference for maintenance data within this scope.
• Serving as the point of contact for SNCF stakeholders carrying out tasks within this scope on behalf of the COSMOS project.
• Supporting change management by delivering training, creating training materials, and maintaining an operational presence during key project phases.
• Providing expertise within the project and monitoring developments related to reference data and maintenance regimes for the e300 and e320 fleet (and potentially the new Celestia fleet), including their updates and the tools currently used to support the related processes.
• Providing expertise within Rolling Stock on COSMOS target tools and their use for creating and updating reference data.
• Drafting new procedures to be applied during the various planned Go Lives of the project and supporting documentation owners in updating applicable standards following project-driven changes.
• Preparing, leading, and following up on actions arising from workshops with internal and external stakeholders to define new procedures, inform the relevant operators, and facilitate their adoption.
• Acting as the SNCF engineering point of contact for all questions related to services delivered to Eurostar within the COSMOS project, coordinating internal and external resources to provide timely responses in line with the project schedule.
• Ensuring expertise in maintenance reference data for the Transmanche fleet within new tools, including trainset declaration, composition management, and maintenance regime declaration and management.
• Drafting and updating operational documentation for Transmanche trainset recomposition.
• Being responsible for defining and providing performance indicators within their scope in the decision-support system to be developed by Eurostar.
• Delivering necessary training to tool users, including creating supporting materials and resources.
• Being present on site during Go Lives, test runs, and operational data migration phases.
• Tracking and closing actions in project monitoring tools to keep all stakeholders informed of project progress.