Support day-to-day Accounts Receivable operations including invoicing, collections, cash application, and customer account reconciliations. Ensure accurate and timely billing, verifying all supporting documentation and collaborating with internal teams to resolve discrepancies. Respond to customer billing inquiries professionally and timely. Help maintain AR sub-ledgers, including tracking payments, investigating variances, and identifying unapplied cash or adjustments. Contribute to month-end close activities by assisting with reconciliations, journal entries, and reporting. Support audit and compliance requests by organizing and maintaining proper documentation. Contribute to automation and system improvement initiatives, helping scale AR operations.