Annissa Castillo

Background

About Annissa Castillo

Detail-oriented finance and operations professional with several years of experience supporting Accounts Payable, expense management, and financial operations in fast-paced, high-volume environments. I bring a strong focus on accuracy, compliance, and timely processing, while maintaining clear communication and strong internal controls.My experience includes reviewing and reconciling expenses and invoices, ensuring proper GL and project coding, validating receipts and supporting documentation, resolving discrepancies, and assisting with month-end close and audit support. I am comfortable working across multiple ERP and expense management systems and thrive in roles that require organization, discretion, and problem-solving.Known for my reliability, attention to detail, and collaborative approach, I take pride in supporting teams behind the scenes and contributing to efficient, well-run operations. I am particularly motivated by roles where quality, accountability, and service make a meaningful impact.