We are looking for aKey Account Managerto drive business growth by managing strategic clients, developing long-term commercial relationships, and ensuring the successful delivery of tailored energy solutions. This role involves understanding client needs in depth, coordinating internal teams, and ensuring high-quality service throughout the full opportunity lifecycle.Main responsabilities:Client Relationship ManagementManage strategic and large accounts, ensuring consistent engagement and long-term satisfaction.Understand client needs, challenges, and objectives to present the company's value proposition and differentiated service offering.Respond to client inquiries related to products, services, technical requirements, and commercial conditions.Sales Development & Opportunity ManagementLead and manage the full offer cycle from initial contact to closure, ensuring all proposals meet client expectations and internal quality standards.Collaborate with internal teams (sales, marketing, technical, legal, finance) to prepare competitive proposals and commercial strategies.Conduct market research and field assessments to identify new business opportunities and strengthen client portfolios.Operational CoordinationIdentify and address non-conformities, ensuring corrective actions and continuous improvement.Support the development and implementation of processes related to tender control, contract management, and commercial governance.Business Insights & StrategyGather market insights (competitor activity, customer trends, pricing benchmarks, risks and opportunities) and share findings internally to support strategic decision-making.Ensure that commercial decisions reflect both client needs and company interests, contributing to sustainable growth.Requirements:Secondary education, vocational training, or bachelor's degree in Business, Engineering, or a related field.Additional training in sales, negotiation, or account management is a strong plus.Minimum 5 years of experien