The Senior Sales Engineer will be responsible for providing technical expertise in the design and sizing of the battery energy storage system and ensuring seamless coordination between Sales, Proposals and Engineering teams. As a key member of the sales process, the Senior Sales Engineer will play a crucial role in reviewing Requests for Proposals (RFPs), determining the optimal system sizing, preparing technical proposals, lead the technical contract documents and negotiations, and ensuring that our solutions meet the needs of our customers. The Senior Sales Engineer will collaborate with internal teams, customers, and external stakeholders to secure technical commitments and drive successful project execution.