Here are some points you may find in your job description outlining a Product Owner’s responsibilities:
Ensures user stories are “ready” for development to start work.
Ensures each story has the correct acceptance criteria.
Gathers, manages, and prioritizes the product backlog.
Ensures close collaboration with the development team.
Works closely with engineering and quality assurance to ensure the right customer problem is solved. This can involve sharing market research and competitive analysis with the team to best focus their efforts.
Has technical product knowledge or specific domain expertise.
Contributes to the work of the Product Manager as they define a product differentiation strategy.
Tracks progress towards the release of a product.