Manage a portfolio of customers, ensuring invoices are sent and paid in a timely manner. Proactively follow up on overdue payments with professionalism and persistence, investigate and resolve billing questions or disputes in collaboration with customers and internal teams while posting cash receipts, reconciling accounts, and preparing AR reports for leadership. Partner closely with Account Executives and Customer Success Managers to drive seamless and timely subscription renewals by tracking and managing renewal timelines. Develop and implement strategies to improve renewal rates and reduce churn.