Participates in the creation and implementation of the marketing/sales plan for all aspects of the assigned portfolio. Provides support to the sales, commercial and marketing teams within the domains of the assigned business. Participates in the opportunity management process for critical opportunities. Coordinate the technical, operational, commercial and legal risk mitigation/support/reviews for all proposals. Participate in customer proposal/contract negotiations, as needed. Ensures proper handover of associated contracts to GeoUnit stakeholders. Develops and maintains good customer relationships in the assigned geography.