I have been involve in being subcontracted with various companies.
Roles includes:
Summary
• Leading scrum teams
• Performing ceremonies
• Facilitate scrum meetings, reviews
• Mentoring Scrum Team and Stakeholders on the principles of Scrum
• Guide Product Owners with Backlog refinement, user stories
• Removes impediments that affects Development/Scrum Team
• Ensure efficient communication by keeping proper knowledge
• Sharing between the Product Owner and the Development Team
• Responsible for improving the team effectiveness.