Référent SI et Support Métiers - CDI (H/F)

Manage Level 1 and 2 user support, administer Microsoft 365 operations, and diagnose incidents to ensure service continuity across multiple sites. Qualify and prioritize business application requests while accompanying users through testing and recipe phases. Coordinate operational interventions by transmitting demands to appropriate stakeholders and verifying solution adequacy. Contribute to SI evolution projects, maintain perimeter documentation, and propose improvements to procedures and service quality. Work autonomously with clear communication between users, business units, and partners. Located in Sargé les Sables-d'Olonne, this full-time role reports to the Flow Manager.