Maintains donor contribution records, processes donations and acknowledgments, and supports accounts payable activities. Reviews invoices, purchase orders, payment requests, and expense reports for accuracy and compliance. Enters and uploads invoices, tracks expenses, reconciles online donations, monitors payment status, researches discrepancies, and prepares account analyses. Requires strong data entry, communication, organization, confidentiality, attention to detail, and proficiency with word processing, spreadsheets, and donor database software.