A Scrum Master is a key role in the Scrum framework, which is used for managing and completing complex projects. The Scrum Master facilitates the Scrum process, ensuring that the team follows its principles and practices. They help remove obstacles that may hinder the team's progress and promote a collaborative environment. In addition to supporting the team, the Scrum Master also acts as a liaison between the team and other stakeholders. They help communicate the team's progress and challenges, ensuring that everyone is aligned and informed. This role is essential for fostering a productive and efficient work environment.