The scrum master role is very vast in nature, this role wears a wide variety of hat as and when required. At a high level, a scrum master is someone who will work with the Product Owner, help the team in sailing through the sprint smooth and work with the management in removing the IMPEDIMENTS. Now, this is a high-level view but if you dive further into it, this will grow like an iceberg. This role is very crucial and important for the team in making a successful delivery. The Scrum Master serves as a facilitator for both the Product Owner and the team. 

The scrum will help the product owner in prioritization and slicing of the FEATURES or the user stories, the scrum master can even use a few tools available to help the PO with backlog alignment. For the team, the scrum master will work to remove the impediments faced by the teams. Along with the delivery, the scrum master also makes SURE that the agile team lives by the agile VALUES and principles and follows the processes/practices that the team agreed to use. As per Mike Cohn – ‘The Scrum Master is often considered a coach for the team, helping the team do the best work it possibly can. The Scrum Master can also be thought of as a process owner for the team, creating a BALANCE with the project's key stakeholder, who is referred to as the product owner’.