Key Mission : Defines maintenance strategies in accordance with customer requirements (spare parts management, software updates, support team organization) and associated quotes Monitors customer service KPIs and maintenance budget, and drives associated action plans Manages or oversees dedicated field customer support engineers (internal, subcontractors or third-party maintainers) Ensures adequate communication with customer and internal stakeholders through meetings and reporting Proposes improvements to maintenance strategy throughout the life of the contract Ensures proper crisis management by defining, driving and communicating resolution action plan in strong coordination with customer and internal stakeholders Defines strategy and manages maintenance for complex technical solutions Manages complex and critical situations in autonomy with the customer Explains or summarizes complex issues, defines and communicates associated actions plans Coaches and tutors less experienced SDM