Management of the product backlog: Detailed elaboration, prioritization, and maintenance of the backlog based on the roadmap provided by the Product Manager. Requirements definition: Creation of precise user stories and acceptance criteria for the development team (approx. 10 people). Interface to the team: Daily collaboration and close coordination with the agile development team; first point of contact for implementation queries. Sprint planning & review: Responsibility for sprint planning, acceptance of implemented features, and conducting sprint reviews. Coordination with the Product Manager: Regular exchange to ensure that backlog prioritization reflects strategic goals (product vision/roadmap). Ensuring the "Definition of Done": Responsibility for the quality of delivered increments.