Managed end-to-end accounting operations for US and Puerto Rico entities, performing full-cycle bookkeeping, general ledger maintenance, and month-end closing procedures. Directed comprehensive Accounts Receivable (AR) and Accounts Payable (AP) cycles, tracking cash flow, managing collections, and resolving complex payment variances. Led strategic dispute resolution and claims management with major retail and logistics platforms (Amazon, Walmart, Target, FedEx, UPS, USPS), securing favorable financial outcomes and regulatory compliance. Executed US Federal and Puerto Rico tax compliance, preparing tax returns, corporate filings, and ensuring strict adherence to local and federal tax regulations. Developed comprehensive financial statements, expense reports, revenue tracking models, and KPI dashboards to drive strategic executive decision-making. Conducted inventory valuation and reconciliation, ensuring absolute consistency between physical stock and general ledger records. Evaluated and allocated commercial allowances, ensuring contractual compliance and precise financial impact reporting. Drove continuous process improvement by auditing internal workflows, reducing operational errors, and implementing digital automation tools to optimize response times.

Managed full-cycle Accounts Payable processes utilizing AppFolio, ensuring accurate data entry, categorization, and thorough review of high-volume vendor invoices. Oversaw corporate utility accounts, specifically managing large-scale billing, reconciliation, and timely payments for Xcel Energy, preventing service disruptions and late fees. Audited financial documents and invoices against purchase orders and receipts to identify discrepancies, ensuring 100% compliance with internal controls. Collaborated with cross-functional teams and external vendors to streamline the bill approval workflow and resolve payment inquiries efficiently.

Financial Control and Accounts Payable Audit: Comprehensive management of the payment cycle for multiple heavy-duty transport and ore haulage vendors and contractors. Payment Reconciliation and Validation: Volumetric and financial reconciliation of trips, plant rehandling, and inter-mine freight, ensuring exact correspondence among waybills, invoices, and agreed-upon rates. On-Site Audit and Field Verification: Physical on-site inspection and validation of the truck fleet to guarantee strict compliance with the operational and commercial conditions established in term sheets. Vendor and Contract Management: Direct oversight of commercial relationships with haulage contractors, resolution of rate or volume disputes, and mitigation of budget variances in ore transportation. Operational Cost Control: Preparation of transportation and logistics expense control reports for management, providing clear visibility into the financial impact of rehandling and haulage on production costs.

Execution of budgets for various departments at the national level.