Define and manage the full product lifecycle of Battery Energy Storage Systems, including product specification, design and continuous improvement with the internal stakeholders and our key suppliers., Develop and maintain supplier specifications for key BESS components (Battery container, PCS, EMS, SCADA, etc), ensuring compliance with technical and market requirements., Lead C&I-specific product integration, optimizing the product interfaces for faster project execution in terms of standardization and simplification for the onsite installation., Collaborate with central purchasing to source and qualify main components, ensuring cost-efficiency and robustness., Provide technical sales & execution support, assisting in solution design, customer interactions, and technical documentation., Stay up to date with market trends, regulatory changes, and technological advancements in the BESS industry., Drive cross-functional collaboration during commercial, permitting, execution, construction, commissioning, and Operation phases to align product strategy with business goals.