The role that is responsible for managing backlogs and engineering processes is the Product Owner. In the context of the Scaled Agile Framework (SAFe), Product Owners are focused on ensuring that the team delivers value by prioritizing work effectively. They play a crucial role in maintaining the team backlog, which includes defining user stories, accepting work results, and clarifying requirements for the development team.
Product Owners operate at the team level and are responsible for making decisions about what to build next and ensuring that the team understands the priorities and goals of the project. Their responsibilities include collaborating with stakeholders to gather requirements and insights to inform the backlog, thereby aligning the team’s work with business needs and customer value.
This focus on managing backlogs directly ties into engineering processes as well since understanding and prioritizing the backlog influences the engineering team's approach to software development, ensuring they adopt the appropriate methods and practices to deliver high-quality solutions that meet customer expectations.