A Scrum Master is a key role in the Scrum framework, responsible for facilitating the Agile development process. They act as a servant leader, helping the Scrum team adhere to Agile principles and practices while removing obstacles that hinder progress. The Scrum Master promotes collaboration, ensures effective communication, and fosters a culture of continuous improvement within the team. By guiding sprint planning, daily stand-ups, and retrospectives, they help teams deliver high-quality products and achieve their goals efficiently. Overall, the Scrum Master plays a crucial role in maximizing the team's productivity and effectiveness.