Serve as the senior technical authority for development, customization, and sustainment across the Oracle Federal Financials COTS product suite and DHA custom extensions, including: Core COTS Financial Modules: General Ledger (GL), Accounts Payable (AP), Accounts Receivable (AR), Purchasing (PO), Cost Management, Federal Financials, Sub-Ledger Accounting (SLA), and Oracle Projects Billing & Costing. Support Tier 3 production escalation and rapid troubleshooting for concurrent processing bottlenecks, data locks, and application outages: End-of-Month (EOM) / Fiscal Year-End: Restore production disruptions within 4 hours maximum allowable downtime during the 5 days prior to, 5 days after EOM, and throughout October.