A senior scrum master is a team leader in the agile development realm. In this career, you work on multiple projects using a Scrum framework, and duties include mentoring lower-level scrum masters, developing various product types, and removing impediments. You also help support the product owner, collaborate with their team, and lead by example. Qualifications include scrum master certification, skills in technology and mentoring, and at least a few years of on-the-job experience with agile approaches. Most begin their career as a scrum master for a few years before reaching senior status.