Apex Systems in Mexico is seeking an experienced Senior Accountant with a strong foundation in U.S. GAAP and hands-on Workday Financials expertise. The role covers month-end close, general ledger, financial reporting, reconciliations, audits, and cash management. The successful candidate will supervise accounting teams or outsourced providers, drive process improvements, and work independently in a fast-paced environment while ensuring regulatory compliance and accurate financial results.